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Woodworking Machines > Planer Moulders & 4-sided Planers > GS-623 (Short piece 120mm) Moulder
GS-623 short piece 120mm moulder machine with multiple spindle heads, control panel, and extended outfeed table on white background
  • GS-623 short piece 120mm moulder machine with multiple spindle heads, control panel, and extended outfeed table on white background

GS-623 (Short piece 120mm) Moulder

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.

Typically chosen by

  • Joinery shops producing window components, short mouldings, or door parts where minimum piece length is a practical daily constraint
  • Workshops moving up from a standalone planer-thicknesser who need four-sided profiling without committing to a full-size production moulder footprint
  • Smaller manufacturers running mixed batches of hardwood and softwood profiles who need variable feed speed to suit different species and sections
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Key specification considerations

Min. Short Piece Length
120 mm
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.
Feed Speed
6–40 m/min (variable)
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.
Working Width
10–230 mm
Working Height (Thickness)
7–160 mm
See full specifications
SpecificationValueNotes
Min. Short Piece Length
120 mm
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.
Machine Frame
Cast iron, rib-reinforced
Rib-reinforced cast iron resists flex and vibration under load, which directly affects surface finish quality on the machined faces.
Feed Speed
6–40 m/min (variable)
Number of Spindles
Configurable — contact IWM to discuss the right spindle count for your profile requirements
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.
Spindle Speeds
Contact IWM for configuration details
Working Width (min–max)
10–230 mm
Working Height (min–max)
7–160 mm
Motor Power — Individual Spindles
Varies by spindle configuration — contact IWM
Motor power per spindle depends on the number of heads specified; IWM will confirm the full power schedule for your chosen configuration.
Total Installed Power
Varies by spindle configuration — contact IWM
Three-phase supply is required; confirm availability and amperage capacity on site before specifying.
Electrical Supply
3-phase (confirm voltage with IWM at point of order)
Machine Dimensions (L × W × H)
Contact IWM for certified installation drawing
Allow additional clearance beyond the machine footprint for infeed and outfeed support, plus extraction ducting connection.
Machine Weight
Contact IWM for shipping and installation data
Floor loading capacity should be checked before installation — IWM can advise once the specific configuration is confirmed.
Extraction Requirement
Contact IWM — extraction specification depends on spindle configuration and dust volume
Certification
CE
CE certification confirms the machine meets EU/UK Machinery Directive safety requirements, which is a legal requirement for use in a UK workplace.
Manufacturer
Gau Jing
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Is this the right
machine for you?

Choose the GS-623 (Short piece 120mm) Moulder if...

  • You regularly need to process short pieces from 120mm and cannot run a following board as part of your normal workflow
  • Your workshop footprint is limited and you need four-sided moulding capability without the floor space demand of a larger production moulder
  • You run varied profiles across hardwood and softwood species and need variable feed speed to manage surface quality across different materials
  • 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

Consider an alternate model if...

  • 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
  • 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
  • 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
  • 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
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