Umbrella metal part
Straight Stick Shaft
Overview
- Made by
- Supply chain / partners
- Materials
- Carbon steel tube, Aluminium tube, Solid wood (design option)
- Finish options
- Chrome / nickel plating, Black electrophoresis, Powder coating, Painted finish (wood)
Manufacturing process & quality control points
- 1
Tube cutting
Supply chain / partnersOne-piece tube is cut to finished length, typically 80-90 cm for a stick umbrella. Square cut ends are required for handle and ferrule seating.
Quality control points
- Length · Steel rule / caliper, per drawing · First article + 1 pc per 2 h
- 2
Hole punching & end forming
Supply chain / partnersSpring seat hole, latch window and the anti-rotation slot are punched; the handle end is formed or crimped for a positive handle fit.
Quality control points
- Hole position · Go / no-go gauge · First article + hourly
- Burr on inner wall · Visual + probe · 100%
- 3
Deburring & pre-treatment
Supply chain / partnersDeburring and degreasing before finishing; the inner wall must be clean because the opening spring runs inside the tube.
Quality control points
- Cleanliness · Water-break test / visual · Per load
- 4
Surface finishing
Supply chain / partnersChrome or nickel plating, black electrophoresis or powder coating. Stick umbrellas show more bare metal, so finish uniformity is visible to the buyer.
Quality control points
- Coating thickness · Thickness gauge per drawing · 5 pcs per batch
- Corrosion resistance · Neutral salt spray: shaft 4 h, no red rust (GB/T 23147-2018 reference) · Per order
- Appearance · Visual under D65 light, no runs or bare spots · AQL 2.5 per lot
- 5
Straightness & fit check
Supply chain / partnersShaft is checked straight and dry-fitted with runner, spring and handle before release to assembly.
Quality control points
- Straightness · Roll on flat plate · First article + 1 pc per 2 h
- Runner sliding fit · Manual slide over full travel, no binding · 100%
Used in
Relevant compliance
- EU REACH (SVHC)
EU
All metal & plastic parts, electroplated components and fabric coatings
- California Proposition 65
US
All products sold into California containing listed chemicals
Get a quote for Straight Stick Shaft
Custom materials, finishes and logos available. Send your drawing or sample.