Enclosure cooling, designed and built in Suzhou since 2011
DBS — Unique Motor & Cooling Technologies

Engineering capability

A seasoned team with more than twenty years in thermal design, backed by in-house automation, our own calculation software, and every test chamber the product range needs.

Engineer working on 3D product design

One team for the cycle, the airflow and the box

Refrigeration cycle modelling, CFD airflow balancing, acoustic and vibration work, and the electromechanical integration that turns all of it into a sealed box that survives shipping.

  • Advanced thermal and airflow design with end-to-end electromechanical integration
  • Coil geometry and fin profile developed in-house, not bought in
  • Low-GWP refrigerant conversions: R513A, R454B, R1234yf, R32
  • Customisation from a changed flange to a clean-sheet enclosure

Twelve thousand square metres in Wujiang

The Wujiang base runs precision sheet metal, aluminium and copper coil lines, and fixtures we design and build ourselves — which is why a custom bracket does not turn into a twelve-week tooling quote.

Product design workstation
Product design
Tooling and coil brazing line
Tooling & machinery design
Fibre laser cutting cell
Digital production capability

Precision sheet metal

Fibre laser cutting, bending and welding cells feeding the enclosure lines.

Coil production

Aluminium and copper coil processing with in-house expansion and brazing.

Charge & leak

Automated evacuation, charging and helium leak detection on every unit.

End-of-line test

Performance, electrical safety and functional checks before packing.

Every unit is tested before it ships

Complete product test and verification workflows, run in our own chambers rather than booked out to a third party — which keeps a design iteration down to days.

Enthalpy performance chamber
Enthalpy chamberRated capacity and power at controlled indoor/outdoor conditions
Salt spray corrosion chamber
Salt sprayC4/C5 corrosion validation for offshore and coastal units
Environmental test chamber
Environmental chamberTemperature and humidity cycling to T3 / 55 °C
Helium leak detector
Helium leak detectionRefrigerant circuit integrity at production rate

Also in the lab: HiPot and insulation resistance testing, IP ingress, vibration and transport simulation, acoustic measurement, and endurance running of complete units.

DBS selection software

We wrote the selection software

Heat-exchanger and air-conditioner selection tools built in-house and tuned against our own measured data, so a selection is traceable back to a test result rather than a supplier's generic curve.

  • Plate geometry, flow rates and pressure drop solved against measured coil performance
  • Rapid iteration — a customer condition set turns into a model number the same day
  • Mobile selection app for field engineers
Ask for a selection

Your specification on our production line

DBS has built custom environmental control units for telecom operators, storage integrators and medical OEMs since 2019 — under a philosophy we put in writing because customers ask.

Start a programme

Follow the rules

Laws, norms, regulations and standards of every market we ship into.

Licensed software

Every design tool and knowledge base we use is properly licensed.

Respect for IPR

Your drawings, your moulds, your intellectual property — protected.

Quality over claims

Respect for quality technology and for fact, not marketing language.

01

Conditions

Heat load, ambient range, enclosure, power, corrosion class, protocol.

02

Selection

Model proposal with performance data and a 3D outline drawing.

03

Sample

Prototype built on production tooling, tested in our own chambers.

04

Validation

Your qualification programme, our test reports and certification support.

05

Series

Production release with end-of-line test records per unit.

Bring us the difficult one.

The units we are proudest of started as a condition set somebody else had already declined to quote.