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

How we build them

Design, tooling, production and testing in one building in Wujiang. That is why a changed bracket ships in weeks rather than quarters, and why a performance figure on a datasheet comes from our own enthalpy room.

Engineer working on a 3D model of a cooling unit

One team designs the cycle, the airflow and the enclosure

Refrigeration cycle modelling, CFD airflow work, acoustics and the electromechanical design that turns all of it into a sealed box that survives shipping. Coil geometry and fin profile are developed here rather than bought in, which is what makes a genuine custom unit possible.

  • Low-GWP refrigerant conversions: R513A, R454B, R1234yf, R32
  • Our own heat exchanger and air conditioner selection software, calibrated against measured data
  • Customisation from a changed flange to a clean-sheet enclosure

The Wujiang plant

Twelve thousand square metres running precision sheet metal, aluminium and copper coil lines, and the fixtures and jigs we design and build ourselves.

Product design
Design
Tooling and coil line
Tooling and coil production
Fibre laser cutting cell
Sheet metal

Every unit is tested before it ships

The chambers are ours, not booked from a third party, which keeps a design iteration down to days.

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

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

Building to your specification

We have built custom units for telecom operators, storage integrators and medical OEMs since 2019. Five steps, and your drawings and moulds stay yours throughout.

01

Conditions

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

02

Selection

A model proposal with performance data and a 3D outline drawing.

03

Sample

A prototype built on production tooling and tested in our 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.