Gau Jing is a Taiwanese manufacturer producing a range of production woodworking machinery including double end sizers, automatic tenoners, and grooving machines suited to manufacturers processing timber components at volume. Their equipment is designed for the practical demands of production joinery, window manufacturing, and timber processing operations where consistent output and mechanical reliability are the priorities. IWM works with Gau Jing to give UK customers access to well-built production machinery that delivers the capacity and repeatability their output volumes require.
- Chosen By List:
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Timber frame and structural joinery manufacturers working with oversized section sizes beyond the capacity of standard four-sided planers
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Workshops producing large-profile mouldings or beam components where vibration-free cutting and surface finish quality are critical
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High-volume operations that need the option of high-speed feed rates to sustain production throughput on wide-section material
- This Product List:
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You are working with wide-section or structural timber — beams, glulam, or large-profile mouldings — that exceeds the capacity of standard four-sided planers
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Surface finish consistency is critical and vibration from heavy cutting passes has been a problem with lighter machines
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You need high-speed feed options (60 or 80 m/min) to sustain throughput on volume production
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Your operation would benefit from optional computerised position control to reduce setup time and improve profile repeatability
- Alternate List:
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Your typical section sizes fall within standard ranges — the GN-5S23 or GN-6S23 four-sided moulder may be a more proportionate and cost-effective choice
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You are working primarily with smaller hardwood or softwood joinery profiles where the GL-630's capacity would be largely unused — the <a href="index.php?option=com_content&view=article&id=80&catid=27">GH-623 Moulder</a> may be better matched to your throughput
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You are considering a European-built alternative for particular quality assurance or service support reasons — the Soukup GS-423 or GS-523 or the <a href="index.php?option=com_content&view=article&id=77&catid=27">Four-Sided Planer Model 180 PSE</a> may be worth discussing with us
- Key Specifications:
- Specification Name:
Max Working Width, Specification Value:
300mm, Specification Notes:
A 300mm working width accommodates structural beam and glulam sections that would exceed the capacity of standard four-sided planers, which typically top out at 230–260mm.
- Specification Name:
Spindle Configuration, Specification Value:
6 spindles, dynamically balanced with hydraulic outboard bearing support, Specification Notes:
Hydraulic outboard bearing support on the horizontal spindles stabilises the cutting head under heavy load, which is what keeps surface finish consistent when moulding wide hardwood or structural sections.
- Specification Name:
Feed Speed, Specification Value:
Standard 36 m/min; optional 60 or 80 m/min, Specification Notes:
The high-speed feed options are significant for volume production — specify at point of order, as they affect feed motor sizing and may influence extraction requirements.
- Specification Name:
Spindle Speed, Specification Value:
6,000 RPM
- Full Specifications:
- Specification Name:
Max Working Width, Specification Value:
300mm
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Max Working Height, Specification Value:
160mm
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Min Working Width, Specification Value:
15mm
- Specification Name:
Min Working Height, Specification Value:
7mm
- Specification Name:
Number of Spindles, Specification Value:
6
- Specification Name:
Spindle Speed, Specification Value:
6,000 RPM
- Specification Name:
Spindle Balance, Specification Value:
Dynamically balanced, Specification Notes:
Dynamic balancing reduces vibration at the cutting head, which directly improves surface finish quality on wide or structural sections.
- Specification Name:
Outboard Bearing Support, Specification Value:
Hydraulic, Specification Notes:
Hydraulic outboard bearing support stabilises the spindle under heavy cutting loads — particularly relevant when moulding large-section beams or hardwoods.
- Specification Name:
Feed Speed (Standard), Specification Value:
6–36 m/min (variable)
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Feed Speed (Optional), Specification Value:
60 m/min or 80 m/min, Specification Notes:
High-speed feed options should be specified at point of order — confirm whether they affect spindle motor sizing or extraction requirements.
- Specification Name:
Pressure Roller System, Specification Value:
Pneumatic, multiple-stage control, Specification Notes:
Multi-stage pneumatic pressure control maintains consistent hold-down across the full width of the workpiece, which is especially important on wide or irregular-section stock.
- Specification Name:
Automatic Position Control, Specification Value:
Optional (computerised), Specification Notes:
Computerised position control reduces manual setup time between profiles and improves repeatability on production runs.
- Specification Name:
Straight Jointer Device, Specification Value:
Optional
- Specification Name:
Profile Jointer Device, Specification Value:
Optional
- Specification Name:
Motor Power (Total), Specification Value:
Confirm with IWM at point of enquiry — varies by spindle count and high-speed feed option selected, Specification Notes:
This machine class requires a three-phase supply at significant amperage; verify your incoming supply capacity before specifying.
- Specification Name:
Electrical Supply, Specification Value:
Three-phase — confirm voltage and amperage with IWM at point of enquiry, Specification Notes:
Confirm three-phase supply availability and amperage capacity at your premises before specifying this machine.
- Specification Name:
Machine Dimensions (L x W x H), Specification Value:
Confirm with IWM — contact us for the current factory dimension sheet, Specification Notes:
Allow additional clearance beyond the machine footprint for in-feed, out-feed support, and extraction ducting.
- Specification Name:
Machine Weight, Specification Value:
Confirm with IWM — a machine of this class and construction is likely to be substantial, Specification Notes:
Floor loading should be assessed by a structural engineer before installation of any heavy-duty wide-section moulder.
- Specification Name:
Extraction Connection, Specification Value:
Confirm with IWM — will depend on spindle configuration and high-speed feed option
- Specification Name:
Noise Level, Specification Value:
Confirm with IWM — acoustic treatment of the installation area may be required depending on working conditions
- Specification Name:
CE Marking, Specification Value:
Available — CE compliance is an option at point of order; confirm requirement when specifying, Specification Notes:
CE marking confirms the machine meets European machinery safety directives, which is required for lawful use in the UK and EU.
A heavy-duty four-sided moulder built around a 300mm working width, designed for structural timber, beams, and large-profile mouldings that push beyond the capacity of standard four-sided planers. If consistent surface finish on wide or irregular section is a priority, this is the machine to discuss.
- Chosen By List:
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Timber frame and structural joinery businesses processing beams, posts, and pillars that exceed the capacity of standard 4-sided planers
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Sawmills and large joinery manufacturers needing high-throughput wide-board surfacing and profiling in a single pass
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Workshops tendering for construction or fit-out contracts that regularly specify wide moulded sections and cannot afford repeated re-runs through narrower machines
- This Product List:
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Your regular work includes sections wider than 230–300 mm — beams, wide boards, or structural pillars — that a standard 4-sided planer simply cannot accommodate
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You need the flexibility to configure spindle count and feed speed to match your specific product mix, rather than buying a fixed-spec machine
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Production volume and throughput justify a heavy-duty wide-format machine, and downtime for knife changes needs to be minimised via optional jointer devices
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You are specifying for a construction timber or engineered wood environment where surface quality across the full 450 mm width must be consistent at speed
- Alternate List:
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Your widest section is consistently under 300 mm — the <a href="index.php?option=com_content&view=article&id=80&catid=27">GH-623 Moulder</a> or the <a href="index.php?option=com_content&view=article&id=78&catid=27">Fourside Planer Moulders GN-5S23/GN-6S23</a> may be a better-proportioned and more cost-effective fit
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Your volume does not justify the scale of this machine — the Soukup GS-423 or GS-523 are worth discussing with IWM if your throughput is more modest
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You are primarily processing standard-width softwood or hardwood sections for joinery rather than structural wide-format work — a smaller moulder in the range will likely serve you better
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Floor space or electrical supply is constrained — talk to IWM about the <a href="index.php?option=com_content&view=article&id=77&catid=27">Four-Sided Planer Model 180 PSE</a> or other narrower alternatives before committing to a machine of this footprint
- Key Specifications:
- Specification Name:
Maximum Working Width, Specification Value:
450 mm, Specification Notes:
This is the practical upper limit for a single pass — confirm your widest regular section against this figure, allowing a small margin for material variance.
- Specification Name:
Number of Spindles, Specification Value:
4 to 8 (configurable), Specification Notes:
More spindles allow additional profiling operations in a single pass, reducing the need for secondary machining runs and improving surface finish at speed.
- Specification Name:
Feed Speed, Specification Value:
6–120 m/min (configurable), Specification Notes:
The upper range suits high-volume straight planing; lower speeds are typically selected when running complex profiles or harder timbers where surface quality matters more than throughput.
- Specification Name:
Feed Roller Width, Specification Value:
450 mm with hydraulic outboard bearing support, Specification Notes:
Hydraulic outboard bearings help maintain consistent downward pressure across the full roller width, which is particularly important when processing wide or uneven sections to prevent chatter marks.
- Full Specifications:
- Specification Name:
Maximum Working Width, Specification Value:
450 mm
- Specification Name:
Number of Spindles, Specification Value:
4 to 8 (configurable)
- Specification Name:
Feed Speed, Specification Value:
6–120 m/min (configurable)
- Specification Name:
Feed Roller Width, Specification Value:
450 mm
- Specification Name:
Feed Roller Support, Specification Value:
Hydraulic outboard bearings
- Specification Name:
Optional Jointer Devices, Specification Value:
Straight knife jointer and profile knife jointer, Specification Notes:
Knife jointer devices dress the cutting edge in situ, extending time between full knife changes and helping maintain consistent profile accuracy during long production runs.
- Specification Name:
ATS Automatic Position Controller, Specification Value:
Optional, Specification Notes:
Automates spindle positioning between jobs, which reduces changeover time and operator error when switching between profiles — particularly valuable in mixed-profile production environments.
- Specification Name:
Manufacturer, Specification Value:
Gau Jing
- Specification Name:
Machine Dimensions, Specification Value:
Contact IWM for confirmed dimensions, Specification Notes:
Allow additional floor clearance beyond the machine footprint for infeed and outfeed support, extraction ducting connections, and safe operator access on both sides.
- Specification Name:
Machine Weight, Specification Value:
Contact IWM for confirmed weight, Specification Notes:
A machine of this scale and construction is likely to require a floor loading check before installation — confirm with IWM and your structural engineer.
- Specification Name:
Motor Power / Electrical Supply, Specification Value:
Contact IWM for confirmed electrical specification, Specification Notes:
Confirm three-phase supply availability and current capacity at your premises before ordering — a machine in this class will have a substantial electrical demand.
- Specification Name:
Spindle Speeds, Specification Value:
Contact IWM for confirmed spindle speed data
- Specification Name:
Minimum Working Width, Specification Value:
Contact IWM for confirmed minimum
- Specification Name:
Working Height Range, Specification Value:
Contact IWM for confirmed height range
- Specification Name:
Extraction Spout Size / Requirement, Specification Value:
Contact IWM for confirmed extraction requirement, Specification Notes:
Extraction sizing should be agreed with your dust extraction supplier at the point of specification — a machine of this width and spindle count will have a significant extraction demand.
- Specification Name:
Noise Level, Specification Value:
Contact IWM for confirmed noise data, Specification Notes:
If measured noise exceeds 85 dB(A), acoustic screening or hearing protection zones will be required under UK noise at work regulations — confirm with IWM.
For timber frame builders, sawmills, and structural joinery shops that regularly handle sections wider than standard 4-sided planers can manage — the GL-645 brings 450 mm capacity, configurable spindle count, and high feed speeds into a single heavy-duty machine.
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Joinery shops producing window sections, door components, or moulded profiles at volume
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Timber processors who need four-sided dimensioning and surface finish in a single pass
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Workshops stepping up from a smaller four-sider and needing additional spindles for more complex profiles
- This Product List:
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You need six spindles to run more complex profiles or combine operations in one pass without secondary handling
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Your production volume justifies a larger, heavier-duty four-sider over a more compact entry-level machine
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Surface finish quality is critical and you want high-precision spindles as standard in the machine's construction
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You want the option to configure the machine with up to eight spindles as your profiling needs develop
- Alternate List:
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Your profiles are straightforward and four spindles are sufficient — the GN-5S23 or Soukup GS-423 / GS-523 may be a more proportionate choice for your operation
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Your maximum working width exceeds 230 mm — the GL-645 handles up to 450 mm width and may be more appropriate for wider stock
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You need a simpler dedicated moulder rather than a <a href="index.php?option=com_content&view=article&id=77&catid=27">four-sided planer</a> moulder — the <a href="index.php?option=com_content&view=article&id=80&catid=27">GH-623 Moulder</a> may be worth discussing
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Your throughput requirements are modest and a smaller or simpler machine would avoid unnecessary capital outlay — talk to us and we can help assess the right level
- Key Specifications:
- Specification Name:
Spindles, Specification Value:
6 (4–8 spindle configurations available), Specification Notes:
More spindles allow more profile complexity or additional operations in a single pass, reducing handling and secondary machining.
- Specification Name:
Working Width, Specification Value:
10–230 mm, Specification Notes:
The 10 mm minimum suits small-section mouldings; the 230 mm maximum covers most UK joinery stock including standard door and window profiles.
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min, Specification Notes:
Variable feed via frequency converter lets you slow the machine for harder species or complex profiles and open it up for straightforward dimensioning runs.
- Specification Name:
Spindle Speed, Specification Value:
6,000 rpm
- Full Specifications:
- Specification Name:
Spindles, Specification Value:
6 (4–8 spindle configurations available), Specification Notes:
More spindles allow more profile complexity or additional operations in a single pass, reducing handling and secondary machining.
- Specification Name:
Working Width (min–max), Specification Value:
10–230 mm, Specification Notes:
The 10 mm minimum suits small-section mouldings; the 230 mm maximum covers most UK joinery stock including standard door and window profiles.
- Specification Name:
Working Height (min–max), Specification Value:
7–160 mm
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min, Specification Notes:
Variable feed via frequency converter lets you slow the machine for harder species or complex profiles and open it up for straightforward dimensioning runs.
- Specification Name:
Spindle Speed, Specification Value:
6,000 rpm
- Specification Name:
Motor Power (individual spindles), Specification Value:
5.5–18.5 kW per spindle (configuration-dependent), Specification Notes:
Each spindle is independently driven — confirm your three-phase supply capacity with IWM when specifying, as total connected load across all motors is substantial.
- Specification Name:
Lubrication, Specification Value:
Centralised lubrication system, Specification Notes:
A centralised system means routine lubrication points are serviced from one location, reducing downtime during maintenance.
- Specification Name:
Air Pressure Adjustment, Specification Value:
Centralised, Specification Notes:
Centralised pressure control allows the operator to adjust feed pressure across the machine from a single point, rather than setting each unit individually.
- Specification Name:
Machine Dimensions, Specification Value:
Contact IWM for current dimensions, Specification Notes:
Allow additional clearance in front of and behind the machine for infeed and outfeed of long stock — as a guide, plan for at least the length of your longest workpiece at each end.
- Specification Name:
Machine Weight, Specification Value:
Contact IWM for current weight, Specification Notes:
Cast iron construction means this machine is heavy; floor loading should be checked before installation — contact IWM for the current weight figure.
- Specification Name:
Electrical Supply, Specification Value:
Three-phase — confirm supply requirements with IWM, Specification Notes:
This machine requires a three-phase supply; verify available amperage at your distribution board before ordering.
- Specification Name:
Extraction Spout Diameter / Quantity, Specification Value:
Contact IWM for extraction specification, Specification Notes:
Adequate extraction is essential on a six-spindle machine — discuss spout sizes and airflow requirements with IWM or your extraction supplier when planning the installation.
- Specification Name:
CE Marked, Specification Value:
Yes, Specification Notes:
CE marking confirms the machine meets applicable EU/UK machinery safety directives, which is a requirement for legal use in UK workplaces.
A six-spindle four-sided planer moulder for joinery and timber workshops that need to dimension, surface, and profile stock in a single pass. Handles working widths up to 230 mm and feed speeds up to 40 m/min, with the option to configure between four and eight spindles.
- Chosen By List:
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Joinery and moulding shops regularly running short offcuts or components that would stall a standard four-sider
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Production workshops where feed speed is a bottleneck and 60 m/min throughput would make a measurable difference to daily output
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Operations that need consistent surface finish across planing and moulding in a single pass rather than separate machine stages
- This Product List:
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Your production regularly involves short pieces or offcuts that a standard roller-feed four-sider cannot handle reliably
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Feed speed is a genuine throughput constraint and you need the capacity that 60 m/min provides
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You want to combine planing and moulding in a single pass to reduce handling and machine stages
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You need the higher spindle count of the GN-6S23 over the GN-5S23 to achieve more complex profile work in one pass
- Alternate List:
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Your pieces are standard length and short-piece capability is not a requirement — the GN-5S23 or <a href="index.php?option=com_content&view=article&id=80&catid=27">GH-623 Moulder</a> may be a more straightforward specification
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Your required working width exceeds 230 mm — the <a href="index.php?option=com_content&view=article&id=82&catid=27">GL-645 planing moulder</a> handles up to 450 mm width and may be more appropriate
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You are running lower volumes in a smaller workshop where the Soukup GS-423 or GS-523 or the <a href="index.php?option=com_content&view=article&id=77&catid=27">Four-Sided Planer Model 180 PSE</a> may be a better-sized and more cost-effective choice
- List Item:
Your profile requirements are straightforward and do not justify the six-spindle configuration — talk to us about whether a simpler machine would serve you just as well
- Key Specifications:
- Specification Name:
Feed Speed, Specification Value:
6–60 m/min, Specification Notes:
At full feed speed, material handling and tooling changes become the practical limiting factors — worth discussing your typical batch sizes with us before specifying.
- Specification Name:
Spindle Count, Specification Value:
6, Specification Notes:
Six spindles allow more complex profiles to be completed in a single pass; the GN-5S23 is the alternative if your profiles require fewer stages.
- Specification Name:
Chain Feed Conveyor, Specification Value:
Automatic, 3 m, Specification Notes:
The integrated chain-feed conveyor is what makes this machine suitable for short pieces — without it, short components are prone to tipping or stalling in a conventional roller-feed four-sider.
- Specification Name:
Working Width / Height, Specification Value:
10–230 mm / 7–160 mm
- Full Specifications:
- Specification Name:
Feed Speed, Specification Value:
6–60 m/min, Specification Notes:
At full feed speed, material handling and tooling changes become the practical limiting factors — worth discussing your typical batch sizes with us before specifying.
- Specification Name:
Spindle Count, Specification Value:
6, Specification Notes:
Six spindles allow more complex profiles to be completed in a single pass; the GN-5S23 is the alternative if your profiles require fewer stages.
- Specification Name:
Chain Feed Conveyor, Specification Value:
Automatic, 3 m, Specification Notes:
The integrated chain-feed conveyor is what makes this machine suitable for short pieces — without it, short components are prone to tipping or stalling in a conventional roller-feed four-sider.
- Specification Name:
Working Width, Specification Value:
10–230 mm
- Specification Name:
Working Height, Specification Value:
7–160 mm
- Specification Name:
Minimum Piece Length, Specification Value:
120 mm, Specification Notes:
Minimum piece length is one of the most important specs to check when short-piece capability is the reason for choosing this machine.
- Specification Name:
Motor Power (approx. total), Specification Value:
Approx. 54 kW across 6 spindles, Specification Notes:
This machine requires a three-phase electrical supply — confirm capacity and available amperage at your site with your electrician before ordering.
- Specification Name:
Electrical Supply, Specification Value:
Three-phase (confirm site amperage requirement with IWM before ordering)
- Specification Name:
Lubrication System, Specification Value:
Centralised air-pressure regulation and lubrication
- Specification Name:
Machine Dimensions (L × W × H), Specification Value:
Contact IWM for confirmed dimensions, Specification Notes:
Allow additional clearance at the infeed and outfeed ends for the conveyor run and operator access.
- Specification Name:
Machine Weight, Specification Value:
Contact IWM for confirmed weight, Specification Notes:
Cast-iron construction of this class typically exceeds 500 kg — check floor loading capacity before installation.
- Specification Name:
Noise Level, Specification Value:
Contact IWM for confirmed noise data, Specification Notes:
Four-side moulders of this type typically operate above 80 dB under load — acoustic treatment or a designated hearing protection zone is likely to be required under UK noise at work regulations.
- Specification Name:
Extraction Requirement, Specification Value:
Contact IWM for confirmed extraction data
- Specification Name:
Manufacturer, Specification Value:
Gau Jing
A six-spindle four-sider built for short offcuts and components that would stall or jam a conventional roller-feed machine. Plane and mould in a single pass at up to 60 m/min, down to 120 mm piece length.
- Chosen By List:
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Parquet and engineered flooring producers needing to combine moulding and slicing in a single pass
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Workshops looking to reduce handling time and floor space by consolidating two operations into one machine
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Manufacturers stepping up output on compound parquet lines who need a purpose-built rather than adapted solution
- This Product List:
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Your production is focused specifically on compound parquet and you want a machine built around that process rather than a general-purpose moulder
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You need moulding and slicing in a single pass and want to eliminate a separate operation and the handling that goes with it
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Floor space is a constraint and combining two functions in one footprint is a practical requirement
- List Item:
You are scaling up a parquet line and need a purpose-designed unit rather than adapting existing machinery
- Alternate List:
- List Item:
You need a general four-side planer and moulder for mixed timber profiles rather than a parquet-specific machine — the Soukup GS-423 or GS-523 or the <a href="index.php?option=com_content&view=article&id=77&catid=27">Four-Sided Planer Model 180 PSE</a> may be more appropriate
- List Item:
Your required working width exceeds 230 mm — the <a href="index.php?option=com_content&view=article&id=82&catid=27">GL-645 planing moulder</a> handles up to 450 mm width and may suit wider stock
- List Item:
You need a standalone moulder without the integrated slicing function — the <a href="index.php?option=com_content&view=article&id=80&catid=27">GH-623 Moulder</a> is worth considering
- List Item:
Your volumes or budget do not justify a combined unit — talk to IWM and we can help you assess whether two separate machines at lower cost would serve you better at your current throughput
- Key Specifications:
- Specification Name:
Function, Specification Value:
Four-side moulding + slicing (combined), Specification Notes:
Having both operations in one machine eliminates a separate transfer and set-up stage, which is the key efficiency argument for this unit over running discrete machines.
- Specification Name:
Working Width, Specification Value:
180 mm / 230 mm, Specification Notes:
Two standard bed widths are available — confirm which suits your typical parquet blank size before specifying.
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min, Specification Notes:
The variable feed range accommodates both careful profiling at lower speeds and higher-volume production runs without changing machines.
- Specification Name:
Spindle Configuration, Specification Value:
Up to 8 spindles (GNS-8S23), Specification Notes:
Higher spindle counts allow more profiling passes in a single run, reducing the need for secondary operations on complex parquet profiles.
- Full Specifications:
- Specification Name:
Function, Specification Value:
Four-side moulding + slicing (combined)
- Specification Name:
Primary Application, Specification Value:
Compound parquet processing
- Specification Name:
Manufacturer, Specification Value:
Gau Jing
- Specification Name:
Working Width, Specification Value:
180 mm / 230 mm, Specification Notes:
Two standard bed widths are available — confirm which suits your typical parquet blank size before specifying.
- Specification Name:
Working Height (Thickness), Specification Value:
125 mm / 160 mm
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min, Specification Notes:
The variable feed range accommodates both careful profiling at lower speeds and higher-volume production runs without changing machines.
- Specification Name:
Spindle Speed, Specification Value:
6,000 rpm
- Specification Name:
Spindle Count, Specification Value:
4–8 spindles (model dependent; GNS-8S23 = 8 spindles), Specification Notes:
Higher spindle counts allow more profiling passes in a single run, reducing the need for secondary operations on complex parquet profiles.
- Specification Name:
Saw Spindle Speed Control, Specification Value:
Optional frequency inverter, Specification Notes:
Variable saw spindle speed allows adjustment to suit different wood species and densities — useful if your parquet mix includes both softwood and hardwood blanks.
- Specification Name:
Motor Power (total), Specification Value:
Contact IWM for confirmation, Specification Notes:
Phase and amperage requirements should be confirmed with IWM before ordering to ensure your supply is adequate.
- Specification Name:
Machine Dimensions, Specification Value:
Contact IWM for confirmation, Specification Notes:
Allow additional clearance beyond the machine footprint for infeed, outfeed, and operator access.
- Specification Name:
Machine Weight, Specification Value:
Contact IWM for confirmation, Specification Notes:
If weight exceeds 500 kg, floor loading capacity should be checked before installation.
- Specification Name:
Noise Level, Specification Value:
Contact IWM for confirmation, Specification Notes:
If above 80 dB, acoustic treatment and hearing protection requirements under UK Noise at Work Regulations should be reviewed.
- Specification Name:
Extraction Requirement, Specification Value:
Contact IWM for confirmation
- Specification Name:
CE / UKCA Certification, Specification Value:
Contact IWM for confirmation, Specification Notes:
Confirmation of conformity marking is required for legal use in UK workshops.
A purpose-built combined moulder and slicer for compound parquet producers who need both operations completed in a single pass. Where floor space and handling time matter, this unit does the job of two machines.
- Chosen By List:
- List Item:
Joinery shops producing window components, short mouldings, or door parts where minimum piece length is a practical daily constraint
- List Item:
Workshops moving up from a standalone planer-thicknesser who need four-sided profiling without committing to a full-size production moulder footprint
- List Item:
Smaller manufacturers running mixed batches of hardwood and softwood profiles who need variable feed speed to suit different species and sections
- This Product List:
- List Item:
You regularly need to process short pieces from 120mm and cannot run a following board as part of your normal workflow
- List Item:
Your workshop footprint is limited and you need four-sided moulding capability without the floor space demand of a larger production moulder
- List Item:
You run varied profiles across hardwood and softwood species and need variable feed speed to manage surface quality across different materials
- List Item:
You want the rigidity and finish quality of a cast iron frame machine at a more accessible price point than a full-production four-sider
- Alternate List:
- List Item:
Your minimum piece length is not a constraint and you need greater working width — the GL-645 handles up to 450mm width and may be more appropriate for wider section work
- List Item:
Your throughput demands are higher and you need a heavier-duty production specification — discuss the GH-623 Moulder with us, which sits above the GS series in the range
- List Item:
Your sections are more modest and budget is the primary driver — the GS-423 or GS-523 (Soukup Fourside series) may cover your requirements at a lower cost
- List Item:
You need a machine matched to a specific profile or volume requirement — talk to us before specifying, as the GN-5S23 and GN-6S23 may suit certain workshop configurations better
- Key Specifications:
- Specification Name:
Min. Short Piece Length, Specification Value:
120 mm, Specification Notes:
This is the defining capability of the GS-623 over standard four-side moulders — feeding pieces as short as 120mm without a following board reduces waste and opens up shorter component runs.
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min (variable), Specification Notes:
Variable feed speed allows the operator to slow the rate for harder or denser timbers and increase throughput on softwoods, which matters when running mixed-species batches.
- Specification Name:
Working Width, Specification Value:
10–230 mm
- Specification Name:
Working Height (Thickness), Specification Value:
7–160 mm
- Full Specifications:
- Specification Name:
Min. Short Piece Length, Specification Value:
120 mm, Specification Notes:
The side front pressure plate on the left vertical spindle is what makes reliable short-piece feeding possible — without it, pieces below ~200mm typically require a push board.
- Specification Name:
Machine Frame, Specification Value:
Cast iron, rib-reinforced, Specification Notes:
Rib-reinforced cast iron resists flex and vibration under load, which directly affects surface finish quality on the machined faces.
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min (variable)
- Specification Name:
Number of Spindles, Specification Value:
Configurable — contact IWM to discuss the right spindle count for your profile requirements, Specification Notes:
The GS-623 is available in multiple spindle configurations; the number of heads affects which profiles can be run in a single pass and should be agreed at the time of specification.
- Specification Name:
Spindle Speeds, Specification Value:
Contact IWM for configuration details
- Specification Name:
Working Width (min–max), Specification Value:
10–230 mm
- Specification Name:
Working Height (min–max), Specification Value:
7–160 mm
- Specification Name:
Motor Power — Individual Spindles, Specification Value:
Varies by spindle configuration — contact IWM, Specification Notes:
Motor power per spindle depends on the number of heads specified; IWM will confirm the full power schedule for your chosen configuration.
- Specification Name:
Total Installed Power, Specification Value:
Varies by spindle configuration — contact IWM, Specification Notes:
Three-phase supply is required; confirm availability and amperage capacity on site before specifying.
- Specification Name:
Electrical Supply, Specification Value:
3-phase (confirm voltage with IWM at point of order)
- Specification Name:
Machine Dimensions (L × W × H), Specification Value:
Contact IWM for certified installation drawing, Specification Notes:
Allow additional clearance beyond the machine footprint for infeed and outfeed support, plus extraction ducting connection.
- Specification Name:
Machine Weight, Specification Value:
Contact IWM for shipping and installation data, Specification Notes:
Floor loading capacity should be checked before installation — IWM can advise once the specific configuration is confirmed.
- Specification Name:
Extraction Requirement, Specification Value:
Contact IWM — extraction specification depends on spindle configuration and dust volume
- Specification Name:
Certification, Specification Value:
CE, Specification Notes:
CE certification confirms the machine meets EU/UK Machinery Directive safety requirements, which is a legal requirement for use in a UK workplace.
- Specification Name:
Manufacturer, Specification Value:
Gau Jing
A compact, cast iron four-side moulder built to handle short pieces from 120mm — without a following board. Suited to joinery shops running window components, door parts, and mixed-species profiles where minimum piece length is a daily working constraint.
- Chosen By List:
- List Item:
Joinery and small production shops running moulded profiles who need a reliable four-sider but don't have the floor space or throughput to justify a larger machine
- List Item:
Businesses processing short or narrow workpieces — sections that tend to feed poorly through standard four-siders
- List Item:
Workshops looking for an entry point into four-sided planing and moulding without stepping up to a heavier, more complex machine
- This Product List:
- List Item:
Your workshop runs a mix of profiles and planed sections but doesn't need the throughput or spindle count of a larger production moulder
- List Item:
Floor space is limited and you need a compact four-sider that still handles the full range of standard joinery sections up to 230 mm wide and 160 mm deep
- List Item:
You regularly process short or narrow workpieces that tend to cause feed problems on simpler machines
- List Item:
You want cast iron rigidity and variable feed at an accessible price point, without stepping up to a heavier machine than your volume justifies
- Alternate List:
- List Item:
You need a wider processing capacity — the GL-645 handles up to 450 mm width and may be more appropriate for larger section work
- List Item:
Your volume or profile complexity has grown to the point where a heavier machine with more spindles makes sense — the GN-5S23 or GN-6S23 are worth discussing
- List Item:
Your budget is tighter and a slightly smaller specification would do the job — the GS-423 or GS-523 from the same range may suit
- List Item:
You need heavy continuous production rather than batch or short-run work — the GH-623, which runs at significantly higher feed speeds, or the <a href="index.php?option=com_content&view=article&id=77&catid=27">Four-Sided Planer Model 180 PSE</a> may be better matched to that duty cycle
- Key Specifications:
- Specification Name:
Spindle Count, Specification Value:
4 spindles (horizontal + vertical)
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min (variable), Specification Notes:
Variable feed lets you match speed to the wood species and profile depth, which matters when switching between hardwoods and softwoods in the same session.
- Specification Name:
Machine Frame, Specification Value:
Cast iron, rib-reinforced, Specification Notes:
Ribbed cast iron resists vibration better than fabricated steel frames at this size, which helps maintain profile consistency across a run.
- Specification Name:
Short/Narrow Workpiece Handling, Specification Value:
Side front pressure plate fitted (left vertical spindle), Specification Notes:
This is a practical feature often absent on entry-level four-siders — it means shorter or narrower sections feed cleanly rather than chattering or stalling.
- Full Specifications:
- Specification Name:
Manufacturer, Specification Value:
Gau Jing
- Specification Name:
Model, Specification Value:
GS-623
- Specification Name:
Machine Type, Specification Value:
4-Side Moulder
- Specification Name:
Frame Construction, Specification Value:
Cast iron with reinforced ribs
- Specification Name:
Spindle Layout, Specification Value:
4 spindles (horizontal and vertical) — contact IWM for configuration options
- Specification Name:
Feed Speed, Specification Value:
6–40 m/min (variable), Specification Notes:
Variable feed lets you match speed to the wood species and profile depth, which matters when switching between hardwoods and softwoods in the same session.
- Specification Name:
Max Workpiece Width, Specification Value:
230 mm
- Specification Name:
Max Workpiece Height, Specification Value:
160 mm
- Specification Name:
Min Workpiece Length, Specification Value:
Contact IWM to confirm
- Specification Name:
Spindle Speed, Specification Value:
Contact IWM to confirm
- Specification Name:
Motor Power (total), Specification Value:
Contact IWM to confirm, Specification Notes:
Confirm available electrical supply (phase and amperage) on site before ordering.
- Specification Name:
Electrical Supply, Specification Value:
3-phase — confirm voltage and Hz with IWM for UK specification, Specification Notes:
The GS-623 is a three-phase machine; verify your site supply is adequate before ordering.
- Specification Name:
Extraction Outlet(s), Specification Value:
Contact IWM to confirm diameter and number
- Specification Name:
Machine Dimensions (L × W × H), Specification Value:
Contact IWM to confirm, Specification Notes:
Allow additional clearance beyond the machine footprint for infeed, outfeed, and operator access when planning floor space.
- Specification Name:
Machine Weight, Specification Value:
Contact IWM to confirm
- Specification Name:
Control Layout, Specification Value:
All spindle control levers positioned at front of machine
- Specification Name:
Short/Narrow Workpiece Pressure, Specification Value:
Side front pressure plate on left vertical spindle — fitted as standard
- Specification Name:
CE Marked, Specification Value:
Yes, Specification Notes:
CE marking confirms the machine meets the relevant EU/UK Machinery Directive requirements for guarding and electrical safety as supplied.
A compact, cast iron four-sider for joinery and small production workshops that need consistent moulded profiles without the footprint or cost of a larger machine. Variable feed from 6 to 40 m/min handles the full range of standard joinery sections, including short and narrow workpieces.
