ISO 9001 Stamping & Die-Casting Facility · Since 2011

Your complete garage & industrial door hardware manufacturer, under one roof.

From our ISO 9001:2015–certified 32,000 m² facility in Ningbo, we precision-stamp, die-cast and surface-finish the full hardware spectrum for both garage doors and industrial doors — hinges, rollers, tracks, cable drums, brackets, locks and more. Engineered for consistent gauge and high-cycle durability, built for global door manufacturers and OEM buyers.

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Years stamping

32,000m²

Facility area

90%

Exported

Product lines

Welllift 32,000 m² garage door hardware manufacturing facility in Ningbo

In-house capability Stamping + Die Casting Stamping + Die Casting

GARAGE & INDUSTRIAL DOOR HARDWARE MANUFACTURER

Ningbo Well Lift Door Co., Ltd. (Welllift)is a Chinese garage door and industrial door hardware manufacturer specializing in metal stamping, precision die casting and OEM component production. Founded in 2011, the company operates a 32,000 m² manufacturing facility in Ningbo with a team of 70+ employees, integrating stamping, die casting, finishing and assembly within one production system.

We manufacture a complete range of garage door hardware, industrial door hardware, garage door parts and door system components, supplying manufacturers worldwide with consistent quality, scalable production and factory-direct support. Around 90% of our production is exported to international markets.

Product portfolio · 01

One facility, the complete
hardware system.

Complete door hardware solutions for garage, commercial and industrial door systems. As a single-source manufacturer, we precision-stamp, die-cast and surface-finish nearly every part in-house — from spring fittings at the top of the door to seals at the bottom, across 13 categories.

13Categories in-house

[ 01 ] Core

Manufacturing · 02

2core processes, mastered in-house// metal stamping + precision die casting — the two foundations of door hardware

Metal stamping High-speed presses form hinges, brackets and tracks to consistent gauge and tolerance.
20 yrs
Precision die casting Cable drums and spring fittings cast for strength where the door bears the most load.
In-house
Surface & QC Galvanizing, powder coat and plating, with dimensional checks before pack-out.
6 steps

See our capabilities

Welllift in-house metal stamping production line with automated presses

100+New products / year

Manufacturing specifications OEM & ODM supported — built to verified material and tolerance standards

Raw materials

Q235 / Q35545# · 65Mn · ASTM A229

Stamping thickness

0.8–5.0 mmSheet & plate forming

Wire diameter

1.8–9.5 mmSpring & wire forming

Dimensional tolerance

±0.10–0.30 mmTight, repeatable

Surface finishing

Zinc / HDGPowder & E-coating

Salt-spray test

96–240 hrsCorrosion resistance

Pass rate

99%+Quality controlled

Production mode

OEM / ODMBuild to drawing

How it's made · 03

From coil to carton — six
controlled steps.

Each part follows the same controlled path through our factory, supporting batch-to-batch consistency within specified tolerances.

STEP 01

Stamping / Die Casting

Steel and zinc alloy formed to spec on high-speed presses.

STEP 02

Machining

Holes, slots and tolerances finished to drawing.

STEP 03

Surface Finishing

Galvanizing, powder coat or plating for corrosion resistance.

STEP 04

Assembly

Bearings pressed, multi-part fittings built up.

STEP 05

Quality Control

Dimensional and function checks before pack-out.

STEP 06

Packaging & Delivery

Carton packing, custom logo on request, 20-day lead time.

Engineering & tooling

More than a workshop —
an engineering partner.

Beyond running production, we develop the tooling and engineering behind each part. That's what lets us take a customer drawing and turn it into a consistent, manufacturable component.

Wire-cut machine used for in-house tooling and die development at Welllift

In-houseTooling & die development

Build-to-drawing manufacturingWe produce to your specification — dimensions, materials and finishes to your drawings or samples.

Tooling & die developmentStamping dies and molds developed and maintained in-house, with wire-cut precision tooling.

DFM reviewDesign-for-manufacturing feedback that improves yield, strength and cost before tooling is cut.

Material recommendationGuidance on steel grade and coating suited to the load, cycle life and environment of the door.

Process optimizationRefining stamping, casting and finishing parameters for repeatable quality across large runs.

Quality assurance

Quality assurance &
production traceability.

Consistent hardware comes from a controlled system, not a single inspection. Our production runs under an ISO 9001:2015 certified quality management system that follows each batch from incoming material to dispatch. Controlled gauge, hole position and surface finish help reduce assembly rework for door manufacturers and keep hardware batches consistent across repeat orders.

01Incoming material inspectionSteel and inputs checked against grade and specification on receipt.

02In-process inspectionDimensional and visual checks during stamping, casting and finishing.

03Final verificationFinished parts verified against drawing before they are packed.

04Batch traceabilityProduction records kept so a batch can be traced back through the process.

05Supplier evaluationMaterial suppliers assessed and monitored under the quality system.

06Corrective actionIssues logged and resolved through a documented corrective-action process.

Certified to ISO 9001:2015 · GB/T 19001-2016

Our quality management system covers production control, inspection procedures, supplier management and traceability. Certification is independently audited and internationally recognized. For OEM buyers, this provides a documented basis for supplier evaluation, production control and repeat-order quality management.

Certificate No.04423Q11160R0S CertifierBeijing Zhongjing (ZJQC) RecognitionIAF · CNAS C044-M ScopeManufacture & Sales of Garage Door Stamping Parts

Where it's used

Hardware for every
kind of door.

The same components serve door manufacturers across three segments — each with its own load, cycle and durability demands.

Residential garage doors

Hinges, rollers, tracks, springs and cable drums for sectional and roll-up garage doors on homes.

Commercial doors

Heavier-duty brackets, locks and reinforcing hardware for storefronts, workshops and light industrial units.

Industrial doors

High-cycle components and corrosion-resistant finishes for warehouse, logistics and factory door systems.

Why Welllift

A focused hardware
manufacturing partner.

We concentrate on one thing — the complete hardware system for garage and industrial doors, produced in a single factory.

One-stop solutionSource a complete, matched component set directly, rather than coordinating multiple suppliers.

Our capabilities

Complete component setsHinges, rollers, tracks, cable break devices, bearing brackets, L-profiles & custom stamping

One supplier, one standardConsistent gauge and finish across the full door hardware system

OEM / ODM to your drawingsCustom development, low MOQ, private-label packaging

Our scope

Components, not complete doorsWe manufacture door hardware and components, not finished door assemblies

Manufacturer-direct supplyWe supply door manufacturers and OEM customers rather than end users

Specified materials onlyNo unspecified material substitution — production follows agreed specifications

Capacity & OEM support

Built for
production volume.

Each month our lines produce more than 500 tons of stamped parts, over 1.5 million track bolts, 100,000+ springs and 300,000+ hinges — capacity sized for manufacturers ordering by the container, not the carton.

We support OEM and ODM production from a standard MOQ of 100 pieces, with a typical 20-day lead time and private-label packaging. Most of our output ships on T/T terms to door makers worldwide, and our catalogue grows by 100+ new products each year.

Getting started

How to start your
OEM project.

A simple path from first enquiry to delivered parts — so you know exactly what happens after you reach out.

1 Send drawings or requirements Share your drawings, samples or a product list with target specs and volumes.

2 Engineering review Our team reviews feasibility, tooling, material and finish, and flags anything to refine.

3 Quotation & approval You receive pricing, lead time and samples for approval before production starts.

4 Production & delivery Approved parts are manufactured under our QMS and shipped with export packaging.

Proof & global reach

Evidence from the
field, not just claims.

Global markets

Around 90% of our output is exported. From one facility in Ningbo we ship to door manufacturers and OEM buyers across four continents.

United States Canada Portugal Spain Russia Australia South Africa

Industry presence

We meet buyers face to face at international door and hardware exhibitions — direct relationships, not just transactions.

Welllift team meeting international buyers at the WELL LIFT exhibition booth — The Welllift team and buyer meetings at the WELL LIFT exhibition booth

Trade showsInternational door & hardware exhibitions

Customer visitsBuyers meet our team in person

Team activitiesThe people behind the production

Engineering & buyer FAQ · 08

Hardware questions, answered.

Engineering and sourcing answers for specifiers and buyers — from hinge selection to order terms.

Garage door hinges are numbered (commonly #1 to #13+) according to their position on the door and the leaf geometry that suits it. As a general rule, lower numbers sit toward the bottom sections and higher numbers toward the top, where the door flexes most. The right choice depends on door height, number of sections, panel weight and the gauge of steel — heavier or high-cycle doors call for a thicker gauge. If you share your door dimensions and weight, our engineering team can recommend the correct hinge set.

Steel rollers carry higher loads and suit heavy or commercial doors, but run louder and can wear faster without sealed bearings. Nylon rollers run noticeably quieter and resist corrosion, making them popular for residential doors where smooth, quiet operation matters. Both perform best with quality sealed bearings; the right pick comes down to door weight, daily cycle count and noise requirements.

Track is specified mainly by size (commonly 2" or 3") and steel gauge, matched to door weight and headroom. Heavier doors and higher cycle counts need a thicker gauge and correct bracket spacing to stay aligned over time. Consistent gauge is critical — uneven thickness is a common cause of track failure. Tell us your door size and weight and we'll advise the appropriate track profile.

Yes. As a manufacturer we build to your specification — custom dimensions, finishes and tooling — and ship under your own brand with private-label packaging. We support OEM and ODM development from drawings or samples, with a standard MOQ of 100 pieces and typical lead time around 20 days from approved sample.

We work mainly with carbon and spring steels — Q235, Q355, 45# steel, 65Mn and ASTM A229 — selected per part for the right balance of strength, formability and fatigue life. Stamped parts run 0.8–5.0 mm thick and spring wire 1.8–9.5 mm in diameter. Finishes include zinc plating, hot-dip galvanizing, powder coating and e-coating, with salt-spray resistance from 96 to 240 hours depending on the part and environment.

Yes. For high-cycle and heavy commercial or industrial doors we adjust material grade, thickness and finish — heavier gauges, spring steel and hot-dip galvanizing for corrosion-prone sites. Custom tooling lets us match bracket geometry, hole patterns and load ratings to your door system rather than forcing a standard part.

Parts are stamped on tooled dies and held within a dimensional tolerance of ±0.10–0.30 mm, depending on part geometry, which supports consistency from piece to piece within a run. In-process and pre-shipment checks support a pass rate of around 99%+. Consistent gauge and hole position matter on the assembly line — they help installers fit hardware with minimal rework.

Our standard MOQ is 100 pieces per item, which keeps custom and private-label runs practical. For mixed containers or sample orders, contact our team to discuss options.

Standard lead time is approximately 20 days, depending on order volume, finish and whether custom tooling is required. We confirm a firm date with your order.

We typically work on T/T terms with export-grade carton packaging. Specific terms, packaging and Incoterms can be agreed per order — just let us know your destination and volume.

Engineer's review

"Most hardware problems do not come from a single failed part, but from small differences in gauge, hole position, finish and batch consistency. Our job is to control these details before they reach the customer’s assembly line."

David Zhou Senior Hardware Engineer 20+ years in door hardware manufacturing & production engineering

Start your project

Ready to discuss your door hardware project?

Send us your product list, drawings or target specifications. Our engineering team will respond with pricing, samples and lead times, typically within one business day.

Send drawings for review Contact Us

Your complete garage & industrial door hardware manufacturer, under one roof.

One facility, the completehardware system.

Garage Door Hinges

Rollers, Bearings & Pulleys

Tracks & Angles

Safety Devices & Roller Brackets

Cable & Spring Fittings

Bearing Brackets

Lock Handles

Shaft Couplers & Chain Hoists

Cables, Folders & Screws

Panel Ribs & End Caps

Rubber Profiles & Seals

Decorative Window Inserts

Industrial Door Motors

Browse the fullhardware catalog

From coil to carton — sixcontrolled steps.