+86-755-28686964 alone931225@gmail.com Mon–Sat 09:00–18:00 (GMT+8)
Direct-drive motors · Shenzhen, China
HomeQuality

Quality, measurement and certification

A motor is only as good as the evidence you can show for it. Here is what we measure, how we measure it, and what we can document.

Inspection

Three stages, sixty checks

Quality is checked at the point where a defect is still cheap to fix, not only at final test.

01

Incoming material inspection

Magnets, laminations, wire and bearings are checked on receipt before anything enters assembly.

02

In-process machining inspection

Dimensions are measured at each machining stage rather than only at the end of the part.

03

Finished-unit verification

Every motor is measured and the measurement data is recorded against the unit, not just sampled from a batch.

60 inspection checks

A single unit passes 60 defined inspection points across the three stages above.

100% of units measured

Measurement data is recorded per unit, so a motor can be traced back to its own test record.

0.16–800 N·m covered

One inspection process covers the whole torque range rather than only the small sizes.

Documentation you can ask for

  • Per-unit measurement record
  • Dimensional drawing for the supplied unit
  • Certificate copies (ISO / CE / RoHS)
  • Material and winding declaration

Audit

If you need to audit the process before placing a series order, tell us in the enquiry and we will arrange a visit.

R&D and verification

How we know the number is real

01

Laser interferometer verification

Our R&D centre measures with a high-precision laser interferometer, including a rotary table set-up for angular verification. Positioning performance is measured, not assumed.

02

Joint calibration laboratory

We calibrate jointly with the Dongshan Lake motion-control measurement laboratory in Dongguan. That laboratory serves our measurements exclusively.

03

New designs every year

The engineering team releases 20 to 30 new custom designs per year, which keeps the range current as machine envelopes change.

Certifications

Certificates and recognitions

CertificateIssued underScope
ISO 9001:2015GB/T 19001-2016 / ISO 9001:2015Quality management system
CEEU conformity markingExport conformity for the DD motor range
RoHSRestriction of Hazardous SubstancesMaterial compliance
National High-Tech EnterprisePRC national programmeTechnology enterprise recognition
SRDI EnterpriseSpecialised, Refined, Differential, InnovativeProvincial SME recognition
ISO 9001:2015 quality management system certificate
ISO 9001:2015 — Quality Management System
National High-Tech Enterprise certificate
National High-Tech Enterprise
Patent certificates issued to ZRT
Invention and utility model patents

Scans are reproduced at reduced resolution. Full-resolution copies of the certificates, including the CE and RoHS declarations, are available on request.

Scope note. Our ISO 9001:2015 certificate is issued for the sale of direct-drive motors. Manufacturing of the motor is carried out to the same documented inspection process, and the per-unit measurement record is what we ask you to hold us to.
Common questions

Quality questions we get asked

Is measurement data supplied with each motor?
Yes. Measurement data is recorded per unit across the three inspection stages, and a per-unit record can be supplied with the shipment on request.
What exactly does the ISO 9001 certificate cover?
The certificate scope is the sale of direct-drive motors. Manufacturing follows the same documented inspection process. If your procurement process requires a specific scope wording, tell us before the order and we will confirm what can be issued.
Can we audit the production process?
Yes, by arrangement. Mention it in your enquiry and we will schedule a visit alongside the technical review.

Need the certificate pack?

Ask for the ISO, CE and RoHS copies with your quotation.

Request a quote WhatsApp
WhatsApp Request a quote