Short pitch conveyor chain attachments are widely used for material handling in packaging, automation and light machinery lines. Many equipment engineers struggle to distinguish WA, WK, WSA and WSK attachment types when replacing chains or designing new conveyor systems.
What are WA / WK / WSA / WSK Attachments?
These are standard wide attachments matched with short pitch roller chains.
- WA: Single-side bent wide attachment plate
- WK: Double-side bent wide attachment plate
- WSA: Single-side straight wide attachment plate
- WSK: Double-side straight wide attachment plate
The number 1 stands for 1 mounting hole on the plate; number 2 stands for 2 holes. The "W" means the plate width matches the full width of chain link plates, which is the main difference from ordinary small attachments.
Material & Performance
Most of these attachments are made of 40Mn steel, treated for wear resistance. Under continuous running, 40Mn maintains stable mechanical performance and resists abrasion. Buyers can arrange attachments on selected links, instead of every link on the whole chain. This flexible layout saves cost for custom conveyor frames.
Key Points When You Select Conveyor Chain Attachments
1. Confirm the chain pitch first, to match the base short pitch conveyor chain.
2. Choose bent or straight plate (WA/WK vs WSA/WSK) according to your fixture mounting direction.
3. Check hole quantity (1 hole or 2 holes) to fit your equipment bolt positions.
4. Confirm load capacity for your conveying material weight.
Common Applications
They are commonly used for transporting boxes, workpieces and parts in automated assembly machines, packaging machinery and light-duty material transfer lines. Compared with heavy long pitch chains, short pitch chains run more smoothly with less vibration for medium and light loads.
FAQ
Q: Can I customize the attachment layout on the chain?
A: Yes. We can arrange attachments on specified links according to your drawing.
Q: Is 40Mn the only material option?
A: 40Mn is standard for wear resistance. Stainless steel material is available for corrosion-resistant working conditions.
