Umbrella plastic part
Sliding Runner
Overview
- Made by
- Qinxi in-house
- Materials
- POM, PA66 + glass fibre, Zinc alloy (die cast), Steel insert (wear version)
- Finish options
- Natural (POM / PA), Plated finish (zinc), Powder coating
Manufacturing process & quality control points
- 1
Tooled to the shaft OD and stretcher count. The bore-to-shaft clearance is the single biggest driver of open-close feel, so it is defined before tooling.
Quality control points
- Bore diameter & clearance · Plug gauge / caliper on first-off samples · First article
- 2
POM or PA66+GF injected, zinc die cast for premium versions; a steel insert can be moulded in for wear resistance.
Quality control points
- Bore dimension · Plug gauge · First article + 1 pc per 2 h
- Short shot / flash · Visual · 100%
- 3
Flash on the bore or stretcher slots is removed; a runner with flash in the bore will bind on the shaft.
Quality control points
- Bore condition · Dry slide on a shaft sample · 100%
- 4
Runner is cycled on the shaft and checked for smooth travel and positive latching at the open position.
Quality control points
- Slide smoothness · Manual slide over full travel, no binding · 100%
- Latch engagement · Open-close cycling per buyer spec (reference: 400 cycles for auto open-close per GB/T 23147-2018) · 5 pcs per batch
Used in
Relevant compliance
- EU REACH (SVHC)
EU
All metal & plastic parts, electroplated components and fabric coatings
- PAHs (polycyclic aromatic hydrocarbons)
EU
Plastic grips, rubber/elastomer coatings and dyed printed fabric in prolonged skin contact
- California Proposition 65
US
All products sold into California containing listed chemicals
Get a quote for Sliding Runner
Custom materials, finishes and logos available. Send your drawing or sample.