Explosion-Proof Transformers for High-Risk Industries
From mines to oilfields, from chemicals to green hydrogen — Hartwerk Power delivers certified safety and uncompromised reliability. Built on 60+ years of transformer manufacturing heritage, every unit is tested in our in-house laboratory to meet IEC, IEEE, and ISO 9001 standards.
Why Trust Hartwerk Power
IEC / IEEE / ISO 9001 Certified
Every transformer is tested in our in-house laboratory capable of simulating explosive atmospheres. Full compliance with international safety and quality standards.
1,500,000 kVA Annual Capacity
A 100,000 m² state-of-the-art facility with advanced vacuum-casting lines, CNC core-cutting, and automated winding machines. Built for volume without compromise.
180+ Engineers — 46% of Workforce
We invest in people, not just machines. Nearly half of our team are engineers dedicated to R&D, quality assurance, and application-specific design.
60+ Years Manufacturing Heritage
Rooted in Shaanxi Tongbian Electric since 1960. Generations of transformer expertise applied to the world's most demanding environments.
Why Choose Hartwerk Power
Certified Safety, Not Just Promises
IEC 60079 and GB 3836 explosion-proof certification. Every unit tested in-house for the hazardous environments it will serve.
Application-Specific Engineering
We don't sell from a catalogue. Every transformer is designed to your exact duty cycle, ambient conditions, and certification requirements.
150 Million kVA Installed Base
Decades of field-proven reliability in mines, chemical plants, oilfields, and green hydrogen facilities across Asia, Africa, and the Middle East.
From Consultation to Commissioning
End-to-end support: engineering review, factory acceptance testing, logistics, and on-site commissioning. One partner, zero finger-pointing.
The Strength of Certainty
Hartwerk combines two German words: 'Hart' (strong, hard, resilient) and 'Werk' (works, factory). Built on 60+ years of transformer manufacturing heritage from Shaanxi Tongbian Electric, we are the global expert in explosion-proof and specialty transformers for high-risk industries — where safety is never optional.
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