Qinbrolly
中文

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

Qinxi in-houseSupply chain / partnersIn-house or supply chain
  1. 1

    Mould / die development

    Qinxi in-housePlastic Injection Molding

    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. 2

    Injection moulding / die casting

    Qinxi in-housePlastic Injection Molding

    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. 3

    Deflashing & cleaning

    Supply chain / partners

    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. 4

    Slide & latch function test

    Supply chain / partners

    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

Automatic Open-Close 3-Fold UmbrellaAutomatic Open Stick UmbrellaGolf Umbrella

Relevant compliance

Get a quote for Sliding Runner

Custom materials, finishes and logos available. Send your drawing or sample.

Request a quote