Manufacturing & quality

Manufacturing capabilities

The workshop, the people and the checks behind every assembly we supply, photographed where the work actually happens.

Location
China
Work
Assembly, busbar, wiring, test
Certification
ISO 9001 / 14001 / 45001

Facilities

The production floor

Long bays, a level floor and a clear route from fabrication to packing. Heavy equipment is handled with pallet trucks and an overhead crane where the bay allows.
Workshop bay with busbar processing machine, component racks and assembly frames
Production workshop
Assembly floor
Completed cubicles in a row awaiting inspection
Completed equipment
Cabinets on pallets before packing
Staging before packing
Distribution cabinet with doors fitted
Finished cabinet

Process

Six stages on the floor

From approved drawing to crated cabinet. Each stage has a check before the next one starts. That is cheaper than finding the problem on site.
01

Engineering & design

GA drawing, schematic and device list produced from your documents and returned for approval.

02

Sheet metal

Frames, doors and gland plates formed and painted to the dimensions on the approved drawing.

03

Busbar

Copper busbar cut, bent, drilled and insulated to the current rating and the fault level.

04

Electrical assembly

Devices mounted, torque values applied and wiring run and ferruled to the schematic.

05

Quality control

Incoming component check, in-process checks and a final inspection against the drawing.

06

Product testing

Continuity, insulation and functional tests, with a record issued for the equipment.

Electrical assembly

Where most defects are prevented

Assembly is a sequence of small decisions: which device goes where, how the cable routes, whether the terminal is torqued. It is also where most site problems are born.

Devices are mounted to the approved layout, wiring is run in ducts with identification at both ends, and torque is applied with a calibrated tool. Photographs are taken at agreed milestones so you can see progress without travelling.

  • Devices checked against the approved device list before mounting
  • Wiring ferruled and colour coded to the schematic
  • Torque applied and marked on busbar and device connections
  • Photo record at agreed production milestones
Panel interior with devices mounted and wiring run in ducts

Devices mounted and wired. Ferrule numbers match the schematic.

Quality control & testing

What gets checked, and how

Routine tests are carried out on every assembly. Type tests belong to the design and were carried out by a third-party laboratory.
Incoming components
Devices checked on arrival against the order and the approved brand list, before anything is mounted.
Every order
Continuity and insulation
Protective conductor continuity and insulation resistance measured on the completed assembly.
Every assembly
Dielectric test
Power-frequency withstand applied to the main circuit at the value required for the assembly rating.
Every assembly
Functional test
Operation of breakers, contactors, interlocks, indication and metering against the schematic and the sequence.
Every assembly
Final inspection
Drawing comparison, labelling, paint finish, door operation, packing and packing list.
Before dispatch
Type test
Design verification of the GGD and GCK assemblies by a third-party laboratory. A copy is issued with the quotation.
Design level

Certifications

Standards and certificates

Certificates are held by the manufacturing partner and are provided as copies on request. Numbers are not published on this page; they identify the holder, and a copy is the document that matters to an auditor.

ISO 9001

Quality management system covering the assembly and testing of low voltage equipment.

ISO 14001

Environmental management system for the manufacturing operation.

ISO 45001

Occupational health and safety management system for the workshop.

CCC

China Compulsory Certification for the covered low voltage products, with self-declaration for XM and XL-21 boxes.

Type test reports

Third-party design verification for GGD and GCK assemblies to GB/T 7251.3-2017.

Insulation type tests

Medium voltage cubicles tested for insulation withstand to GB/T 3906-2020. The reports cover three tests only.

Reference installations

Already installed in plants you may know

The assemblies we supply are built on a line that has delivered switchgear and distribution cabinets to the projects below.

Automotive & battery

  • BYD — Pingshan Plant 6, Shenzhen
  • CATL — 20 t/h ultrapure water plant
  • Yunnan Bangyi — lithium battery production line

Data & electronics

  • China Unicom — data centre distribution
  • Foxconn Longhua — central HVAC retrofit
  • JinkoSolar — Yushan plant; Qinghai 40 t/h pure water

Transport & commercial

  • Baiyun Airport — terminal renovation project
  • Wanda Plaza — Dongguan Chang'an, Humen, Houjie; Huizhou Dayawan
  • JD.com — South China e-commerce base, electrical room retrofit

Water & industry

  • Shenzhen Water — secondary pumping upgrade, Futian
  • Taohuayuan Estate — water treatment, phases 5 / 11 / 12 / 14
  • Guangzhou Guangchai — headquarters engine plant

These installations are in China, and the equipment was produced on the same line that builds TONXEL assemblies. Project names are shown as they are known locally. Further references are added as projects are commissioned.

Want to see the workshop before you order?

We can arrange a video walk-through of the floor with your order in view, or a visit if you are travelling. Both are normal requests and neither costs anything.

Arrange a walk-through How we support projects