Pin-Chain Steaming-Shrinking Machine
WPF-LTYS
Pin-Chain Steaming-Shrinking Machine · Engineered with the QL Anti-Condensate Twin-Steam System
The machine, up close
Key advantages
- QL Anti-Condensate Twin-Steam System — twin steam ports deliver abundant deep-penetrating steam; a heating bank performs secondary vaporisation and a suction unit instantly evacuates residual vapour; condensate formation is intercepted at source
- Pin-Chain Full-Path Width-Locking — fabric is held on pin clamps from infeed to delivery; width is locked to the process-defined value across the full steaming and cooling cycle, eliminating dimensional drift
- Entry Spreading Roller — pre-conditions un-stentered fabrics, ensuring that fabric enters the pin-clamp zone fully open and flat
- Independent Overfeed System with Reverse-Side Overfeed — warp overfeed is precisely controllable, balancing shrinkage depth with surface flatness
Fabric results (before / after)
Worsted
Threading diagrams
Worsted
QL Anti-Condensate Twin-Steam System
- Twin-Port High-Volume Supply — doubled steam delivery enables single-pass penetration of double-faced wool and heavy-weight woolens with uniform shrinkage
- Heating-Bank Secondary Vaporisation — steam remains in vapour state after crossing the fabric; the condensation pathway is severed at source
- Instant Suction Evacuation — vapour does not dwell on the fabric surface; the fabric surface remains free of water marks
- Touchscreen + PLC Integrated Control — independent operation at both infeed and delivery stations; process curves are stored and recalled automatically, parameters are monitored in real time, and faults are diagnosed instantly — operation is simplified, maintenance is direct.
Product overview
WPF-LTYS extends the control architecture of pin-chain steaming-shrinking from a single steam-supply axis to a dual-axis configuration covering both steam supply and condensate prevention. Twin steam ports deliver abundant deep-penetrating steam — once the steam has crossed the fabric, a heating bank carries out secondary vaporisation and a suction unit instantly evacuates the residual vapour. Condensate formation is intercepted at source; the fabric surface remains free of water marks.
The chain frame holds the fabric on pin clamps from infeed to delivery — width is locked to the process-defined value across the entire steaming and cooling cycle. This is a process-grade width-locking capability that free-belt steaming-shrinking machines cannot replicate, with structural consequences for garment dimensional stability, batch consistency and downstream-line continuity.
The machine processes worsted and woolen wool, synthetic woven and knitted structures, and cotton-, linen- and elastane-blended fabrics. For high steam-resistance qualities — double-faced wool and heavy-weight woolens — the QL Anti-Condensate Twin-Steam System provides both the elevated steam supply and the water-mark-free finish required for stable processing.
Applications
Key specifications
| Effective Working Width | 1,800 / 2,000 / 2,200 mm |
|---|---|
| Chain Architecture | Pin-clamp chain with stainless steel rails |
| Operating Speed | 30 m/min |
| Steam Pressure | 4 – 6 bar |
| Air Pressure | 8 bar |
| Installed Power | 23 kW |
| Overall Dimensions (L × W × H) | 10,722 × 3,000 × 2,885 mm |
| Control System | Touchscreen + PLC, automatic process control with parameter storage |
Width configuration: the standard working width is 1,800 mm; 2,000 mm and 2,200 mm are available on customer specification. Other parameters scale accordingly.
Optional features
- Setting Drying Chamber — steam-heated drying chamber following the primary steaming-shrinking stage, providing additional dimensional setting; includes anti-release pin-clamp upgrade
- Entry Weft Straightener — corrects weft skew at infeed, working in concert with the entry spreading roller for geometric precision
- Delivery Configuration — plaiter / saddle folder / small-batch winder / large-batch winder
- Anti-Static Delivery Unit — static control for synthetic and blended fabrics
Full configuration notes, the complete feature list and selection advice — put together for your line and sent straight to you.
Request the full technical fileAll technical parameters stated in this document are measured under ideal operating conditions; actual performance may vary with fabric characteristics, process settings and on-site conditions. The manufacturer reserves the right to introduce technical improvements without prior notice.
Other machines for the same station
This station can be done in more than one way. Each suits a different case — choose by your fabric and output.
Pre-owned machines for this station
Pre-owned European machines for the same station — fully rebuilt to order, and upgraded if you wish.
Common problems in dry finishing
Real questions from the mill floor — and how we answer them.
Fabric shrinks the first time a finished garment is washed — how do I settle that before it leaves the mill?
Shrinkage depth is set by the independent overfeed system — warp overfeed is precisely controllable, balanced against surface flatness. Once steaming is done, the pre-delivery cold-suction unit cool-fixes the result at the delivery end, eliminating post-machine relaxation. Width stays locked to the process-defined value throughout, which is what carries into garment dimensional stability and batch consistency.
Condensate drips onto the cloth during steaming and leaves water marks and shade spots.
Condensate is stopped from forming rather than dried off afterwards. Once the steam from the twin ports has crossed the fabric, a heating bank performs secondary vaporisation so it stays in vapour state, and a suction unit evacuates it immediately. Vapour never dwells on the surface — the condensation pathway is severed at source and the fabric comes off free of water marks.
Double-face and heavy woollens do not steam through, so shrinkage comes out uneven.
Twin steam ports double the volume delivered, so high steam-resistance qualities — double-faced wool and heavy-weight woolens — are penetrated in a single pass with uniform shrinkage. Steam volume, steam pressure and suction intensity are each set independently, from light wovens through to heavy double-faced goods.
Width drifts on belt-type shrinking — how do I choose between pin-chain and belt-type?
Width control is the dividing line. On the WPF-LTYS the chain frame holds the fabric on pin clamps from infeed to delivery, so width is locked to the process-defined value and dimensional drift is eliminated across the whole steaming and cooling cycle. Free-belt machines cannot replicate that process-grade width-locking.
What can the WPF-LTYS do for your line?
Tell us your fabric, weight and output — we will come back with a process proposal and a quotation.