NINGBO WELL LIFT DOOR CO.,LTD
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Company Profile

About Ningbo Well Lift Door Co., Ltd. — Door Hardware Factory in Ningbo

A door hardware manufacturer in Ningbo, China, founded in 2011. Production runs on in-house metal stamping and precision die casting.

Manufacturer Founded 2011 Ningbo, Zhejiang, China ISO 9001:2015 ~90% Exported
Company entity

Who the company is.

Ningbo Well Lift Door Co., Ltd. operates under the brand Welllift. It manufactures hardware for residential garage doors and industrial doors, combining metal stamping and precision die casting in one facility in Ningbo, China.

Founded
2011
Door hardware from day one
Headquarters
Ningbo, Zhejiang
Yinzhou District, China
Business type
Manufacturer
OEM / ODM producti
Team
70+ people
Staff and engineers
Engineering authority

Engineering review behind production.

Technical and production decisions are reviewed by an experienced engineering lead, not handled only as a sales request.

Decision authority
David Zhou
Senior Hardware Engineer · Engineering Lead
20+ years in door hardware manufacturing and production engineering.

David Zhou leads hardware engineering at Welllift and holds authority over technical and production decisions.

He has more than 20 years in door hardware and reviews manufacturability before drawings move into tooling or production planning.

Scope of authority
  • Approves drawingsConfirms manufacturability before any tooling is cut.
  • Validates production runsChecks first articles and consistency across batches.
  • Sets tolerance standardsDefines dimensional limits for each part family.
  • Supports final QC releaseProduction batches are released through documented engineering and QC checks.
The numbers, explained

What the data means.

Each figure is paired with what it indicates for a buyer evaluating a hardware manufacturer.

2011
Founded in 2011. More than a decade of continuous door-hardware production and a stable export track record.
32,000m²
A 32,000 m² facility. Floor space sized to run stamping and die-casting lines together for container-scale export orders.
~90%
About 90% of output is exported. Parts are built to international sizing, finish, and packaging requirements as standard.
ISO 9001
ISO 9001:2015 certified. Material control, in-process inspection, and batch traceability run under an audited quality system.
Ningbo
Based in Ningbo, Zhejiang. A regional hub for metal hardware manufacturing, with established port and export logistics.

Certified to ISO 9001:2015 (GB/T 19001-2016). Certificate No. 04423Q11160R0S, issued by ZJQC under IAF / CNAS recognition. Certified scope: manufacture and sales of garage door stamping parts.

Engineering capability

Capability, application, result.

Each capability is shown with its use case and the result it delivers for a door system. All parts are made in-house.

Material capability

Q235 / Q355 steelStructural parts such as brackets and tracks. Strength and weldability for high-cycle doors.
65Mn spring steelSprings and tensioned parts. Fatigue resistance over repeated open and close cycles.
ASTM A229 wireTorsion and extension springs. Holds a consistent spring rate under load.
0.8–5.0 / 1.8–9.5 mmStamping thickness and wire range. Covers light brackets through heavy industrial parts.

Production processes

Metal stampingForms hinges, brackets, and tracks at a repeatable, controlled gauge.
Precision die castingCable drums and fittings cast for strength where the door carries load.
In-house wire-cut toolingDies are made on site, which controls precision and lead time.
Zinc / HDG / powder / e-coatSurface finish matched to the corrosion environment of the door.

Tolerance and testing

±0.10–0.30 mmHolds fit on the customer's assembly line, batch to batch.
Salt spray 96–240 hVerifies coating life for outdoor and industrial service.
Pass rate 99%+Lowers rework and field returns for OEM customers.

OEM and ODM

Build to drawing / sampleTurns a customer's own design into production parts.
MOQ 100 pcs · ~20 daysPractical lead time for custom and private-label runs.
Private-label packagingParts ship under the customer's own brand.

Inspection systems

IncomingRaw material is checked against its grade on receipt.
In-processDimensional and visual checks are run during production.
FinalEach part is verified against the drawing before packing.
TraceabilityBatch records link finished parts back to material and process.
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Proof

Evidence from the floor.

Each image is documented evidence: what it shows, what it controls, and why it matters to a buyer.

Factory environment Welllift 32,000 m² garage door hardware factory floor in Ningbo, China

Factory environment

A 32,000 m² plant houses metal stamping and die-casting lines under one roof.

Capacity for container-scale OEM orders.
Production equipment High-speed stamping press forming garage door hardware at the Welllift factory

Production equipment

High-speed presses and in-house wire-cut tooling form parts to customer drawings.

Dimensional consistency for OEM hardware.
Quality inspection Dimensional inspection of stamped door hardware parts at Welllift

Quality inspection

Dimensional and salt-spray checks verify each batch before it is packed and dispatched.

Fewer field returns on industrial door systems.

More from the factory floor: company news and exhibitions →

Engineering request

Send us your drawings.

Share drawings, samples, or a product list. Our engineering team will review the requirements and respond with quotation details as soon as possible.

Request an engineering quote Technical inquiry

Or email drawings directly to sales@well-liftdoor.com.