Tolerance
Wire diameter & weld gauge control
Parts produced to your drawing with fixture-backed welding and in-process checks before coating.
Qingdao OEM
Welded and coated for your Programme
Fan guards, freezer baskets and wire shelves from our 6,000 m² Qingdao plant.
About The plant
STM forms and coats wire parts for appliance OEMs in Jimo, Qingdao. Fan guards, freezer baskets and refrigerator shelves leave our 6,000 m² plant after in-house salt-spray and thickness checks. Drawings in, samples in 7 to 14 days.
- In-house QC · OEM drawings · Export packaging
- Haier · Hisense · Aucma programmes
- Salt-spray & thickness on every batch
Product range
Six product families, one coating standard
Fan guards, freezer baskets, shelves, coils, cooking racks and custom wire forms. Photographed as catalog parts from the Qingdao line.
Industrial fan guards & grilles
Steel & stainless · PE, PVC & powder coating
Freezer & refrigerator baskets
PE / PVC / nylon dip coating · welded grid
Wire shelves & grids
Flat & round wire · zinc + polymer finish
Condenser & evaporator wire
Precise bends · corrosion-resistant coating
Oven, BBQ & cooking racks
High-temp powder & chrome · food-contact finishes
Custom wire forms & stainless
304 / 430 stainless · drawing to batch
Why engineers shortlist STM
Tolerance · Coating · Capacity
Coating
Colour-matched polymer finishes
PE, PVC, nylon, PP and epoxy powder on one site — salt-spray and thickness validated in our lab.
Capacity
Scheduled runs for appliance seasons
6,000 m² in Jimo with forming, dip coating and warehouse dispatch ready for OEM volume.
The plant
6,000 m² in Jimo — 40 km from Qingdao Port
Courtyard, forming cells, dip line, warehouse and cages waiting for dispatch.
Capabilities
From wire to coated part, on one site
Wire forming & welding
CNC bending, resistance welding and fixture assembly. Dies and jigs stay in-house.
PE / PVC / nylon / PP dip
Pre-treatment, dip coating and curing for freezer and appliance duty.
Tooling on site
Moulds and jigs stored next to the line — samples typically 7–14 days.
Quality lab
We test here, so you don't test twice.
Dedicated instruments on the Qingdao floor: salt-spray to ASTM B117, magnetic thickness, automatic colorimeter, impact, melt-flow and curing ovens. Every batch is measured against the drawing before it leaves.
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Magnetic thickness
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Colorimeter
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Drying oven
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Melt-flow
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Resistance furnace
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Impact tester
OEM roster
Built as a supporting plant for Qingdao’s appliance belt
Mainstream supplier programmes for Haier, Hisense, Aucma, Hairong, SPG, Xingxing and neighbouring cold-chain OEMs. Cartons leave in STM-branded cages.
- Haier
- Hisense
- Aucma
- Hairong
- SPG
- Xingxing
Four steps to a quote
Clear path from file upload to first shipment
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1
Upload drawing
PDF, STEP, DWG, DXF, JPG or PNG — max 25 MB.
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2
Review & feasibility
Engineering reply on feasibility within 1–3 days.
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3
Price & lead time
Quote with lead time within 24 hours (GMT+8) after review.
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4
Production & shipping
Sample, tooling, mass production and Qingdao Port dispatch.
How we work
From your drawing to first delivery
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01
Enquiry
Send drawing, quantity and target spec.
Day 1 -
02
Drawing review
Tooling, material and finish feasibility check.
1–3 days -
03
Sample
First-off samples for approval and testing.
7–14 days -
04
Tooling
Die / jig build and process validation.
2–4 weeks -
05
Mass production
Scheduled runs with in-process inspection and on-time delivery.
Ongoing
On the floor now
Finished baskets, film-wrapped, waiting on the next OEM call-off.
This is not a catalogue render. These PE-coated baskets are stacked in the STM warehouse after dip coating and inspection — the same construction used in chest freezers and cold-chain cabinets.
- Welded grid with reinforced corners
- Low-temperature PE dip for freezer duty
- Batch thickness and adhesion checks in-house
Industries served
Industries we serve
Export logistics
40 km from Qingdao Port — FOB / CIF support
Containers leave Qingdao for Europe, Middle East and the Americas. We pack film-wrapped stacks and cartons for OEM receiving docks.
Send a drawing, get a quote in 24 hours (GMT+8).
Upload .pdf, .dwg, .dxf, .step/.stp or images up to 25 MB. Our engineering team reviews every request.