Make things right from the first step.
From production to shipment, we deliver brake products — and a safety promise. Here is how every TOPWEST caliper is developed, inspected and validated.
Three checkpoints, every batch.
Each gate produces a written report, so problems are caught before they become batches.
Incoming material
Packaging, labels, appearance, dimensions, physical properties, chemical composition and mechanical performance checked against the approved sample. NG reports are issued and failed lots returned.
In-process
First-piece, on-site patrol and last-piece inspection by operator, team leader and QC inspector — catching worn fixtures, positioning errors, gauge drift or drawing mistakes early.
Final & outgoing
Appearance, size, fit & function, marking, label and packaging verified before every shipment, so each part arrives ready to sell.


12 tests before a design ships.
A comprehensively equipped lab validates durability and performance against customer-specified criteria.
Product life
Durability test bench
Fatigue
Torsion fatigue test bench
EPB life
EPB durability performance bench
Inertia
Inertia dynamometer simulation
Sliding, sealing, drag
Comprehensive caliper performance bench
Sealing
Waterproof test box
Environment
High & low temperature chamber
Strength
Destructive test bench
Corrosion
Salt spray tester
Rubber aging
Aging test chamber
Material
Metallographic analyzer
Tensile
Universal tensile tester


Engineering that keeps the catalogue growing.
Comprehensively equipped R&D and test facilities, with CAD / UG / Pro-E support.
Six stages from brief to series supply.
The process TOPWEST follows with OE customers.
Requirements & planning
Customer needs, product functions and specifications, mass-production schedule, market and competitor research.
Prototype design
Initial design, validation and evaluation with the customer, optimization, samples, testing and verification.
Engineering design
Detailed design from the validated scheme, mechanical and software development, raw material selection and sourcing.
Trial production
Supply-chain setup, small-batch trial production, process optimization and validation of equipment.
Mass production & delivery
Consistent series production, QC and testing processes, on-site training and on-time delivery.
After-sales & feedback
Technical support, customer feedback, continuous improvement and long-term partnership.
From OE sample to mass production.
Verified systems. Worldwide shipping.
We organize land transportation, air freight, sea containers and express shipments for domestic and international customers.
IATF 16949:2016
Automotive quality management system.
ISO 14001:2015
Environmental management system.
National High-tech Enterprise
Plus Wenzhou Enterprise Technology R&D Center.


What auditors and buyers ask.
What inspection stages does a TOPWEST caliper pass?
Three gates: IQC for incoming materials, IPQC with first-piece, on-site patrol and last-piece inspection, and FQC/OQC final inspection of appearance, size, fit and function, marking, label and packaging before every shipment.
Which tests does the TOPWEST lab run?
Product life (durability bench), torsion fatigue, EPB durability, inertia dynamometer, comprehensive caliper performance (sliding resistance, sealing, drag), waterproof sealing, high/low temperature, destructive strength, salt spray corrosion, rubber aging, metallographic analysis and tensile strength.
How does TOPWEST develop a new OEM caliper?
In six stages: requirements analysis and planning, prototype design and development, engineering design, manufacturing and trial production, mass production and delivery, and after-sales service and feedback.
How are orders shipped?
TOPWEST organizes land transportation, air freight, sea container and express shipments for domestic and international customers.
Plan a factory audit or sample test.
Ask for certificates, test reports or a sample program for your part numbers.
- EmailSales@topwestcn.com
- Phone+86 577 6778 1111
- WhatsApp+86 139 6893 8151