Factory & Manufacturing | eTOMMENS DC Power Supply Manufacturer

Manufacturing Capability

Our plant covers 10,000 sq m and runs 10 production lines. Together they produce over 20,000 power sources per month, from 300 W benchtop units to high-power rack and cabinet systems. Design, assembly and test all happen on the same site, so a change agreed with a customer reaches the line without leaving the building.

eTOMMENS DC Power Supply Factory production floor

10,000 m²

Plant area

10

Production lines

20,000+

Power sources per month

30

R&D engineers

The four figures above are the ones stated in our official company profile and product catalog. We publish only figures we can point to a document for.

Production & Assembly

Production covers the full chain in-house: PCB assembly on chip mounters, wave soldering, sub-assembly of the control, power and interface boards, mechanical assembly into benchtop, rack-mount or cabinet enclosures, wiring and final assembly at dedicated workstations.

eTOMMENS Manufacturing Workshop assembly line — Assembly line — control boards and power modules are built and wired at fixed workstations.

eTOMMENS DC Power Supply packing and dispatch area — Packing and dispatch — finished units are packed after release from final test.

In-house process

PCB assembly, soldering, assembly, test and packing are carried out on our own site rather than subcontracted, so process changes and quality feedback stay in one place.

Series-based lines

Lines are organised by product family — benchtop, linear, multi-channel, high-power, rack-mount and cabinet — so each family is built with the tooling it needs.

OEM & private label

Customer-branded builds follow the same line and the same test steps as our own models. Tell us the model and market and we will confirm what can be adapted.

Testing & Quality Control

Every unit passes through staged checks before it is released: incoming inspection on key components, in-process checks after soldering and wiring, a functional test of the actual output against the specification, and a run-in period under load for high-power and rack-mount models. Units that fail a stage go back to rework and are re-tested, not passed forward.

eTOMMENS Power Supply Testing workstation — Functional test — output voltage and current are verified against the series specification.

eTOMMENS DC Power Supply aging test and burn-in area — Run-in under load — high-power and rack-mount units are aged before release.

Staged inspection

Incoming, in-process and final checks are separate gates. A unit has to clear one before it reaches the next.

Specification-based test

Test criteria are the published parameters of the series — the same table you can download for the model you are buying.

Third-party EMC and safety

CE and FCC testing is carried out by external laboratories; the certificates we hold and the exact models they name are listed on the About page.

Individual test records are not published on this site. Send us the model and serial number and we will confirm what we hold for that unit.

Product Calibration

Before packing, each unit's indication and output are checked against reference instruments on our calibrators, and adjusted where the reading drifts outside the tolerance of its series. This is the step that keeps a 300 W benchtop supply and a multi-kilowatt rack system consistent with the parameters printed in their specification tables.

What is checked

• Output voltage and current against the series specification
• Display reading against the actual output
• Set-point and read-back behaviour on programmable models
• Interface and communication behaviour where the model has one

Calibration documents

We publish no calibration certificate file on this site, so nothing here should be read as one. If your qualification file needs a calibration document, send us the model and serial number through Contact Us or a Technical Document Request and we will confirm what we can supply for that unit.

Factory & Showroom

Our showroom displays the current range — benchtop, linear, multi-channel, high-power, rack-mount, cabinet and electronic load families — on the same campus as production. Distributors, OEM partners and engineering teams can see the line and the products together, rather than only on a datasheet.

eTOMMENS Power Supply Showroom entrance — Showroom — the eTOMMENS entrance area at the Dongguan site.

eTOMMENS Rack-Mount DC Power Supply Showroom display — Showroom — high-precision rack-mount power supplies and loads on display.

R&D Center

Songshan Lake District, Dongguan, Guangdong, China

Production Center

Dalingshan Town, Dongguan, Guangdong, China

Planning a visit or an audit? Write to wendy@etommensglobal.com and we will arrange a time with the production team.

Built for Professional Power Testing

The same facility builds the families that professional power testing depends on: programmable and regulated DC power supplies for laboratory and R&D benches, linear supplies where low ripple matters, multi-channel supplies for board-level work, auto-ranging supplies that cover a wide range from one unit, and high-power rack-mount and cabinet systems for burn-in, aging and production test racks.

Programmable DC Power Supply

Remote control, set-point and read-back for automated test.

Linear DC Power Supply

Low-ripple output for sensitive measurement work.

High Power DC Power Supply

Burn-in, aging and high-current test benches.

Rack-Mount DC Power Supply

System integration in 19-inch racks and cabinets.

Multi-Channel DC Power Supply

Independent rails for board-level and modular work.

Auto-Range DC Power Supply

Wide voltage and current range from a single unit.

Send us your requirement

Tell us the model or the specification you need — output range, channels, ripple, interface or rack format — and we will come back with what we can build, including private-label and OEM options.

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