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Circular Connectors
Cable Harnesses
Interconnect Solutions
Custom R&D&P
Defense Industry
Mining Industry
Transportation Industry
Other Industrial Sectors
Mining
Industry
Power and communication Ex connectors, cable harnesses and whole units designed highly durable for extreme conditions on land, undeground and at sea.
R&D / In-House Production / Assembling / Connection & Installation / Maintenance
Custom Made [Ex] High-Power Cable Harnesses
TENEO [Ex] Aux Connector Lines
TENEO Connected [Ex] PDUs
(High-Power, Aux, Control)
Panel Connectors
(High-Power, Aux, Control)
TENEO Connected PDUs
Explosion Proof
Oil Substances
Salt Sea Water
Extreme Temperatures
Hermetic Installations
Strong Vibrations & Shocks
Harsh environment, hostile climatic conditions and careless handling. We counted on all this already in the stages of development, selection of suitable materials and production technologies.
Thanks to this, you get connectors that are ready to work stably in various climatic conditions for a long time (low temperatures well below -50°C, or high temperatures above 60°C) to overcome temperature cycles, can cope with humidity, salt water and exposure to aggressive petroleum substances and chemical products.
EX certification for explosive environments (ATEX, IECEx) is a matter of course. This makes it possible to use the TENEO solution even in places where there is a risk of electrostatic discharge (ESD) and electromagnetic interference (EMI).
Heavy-Duty & Explosion Proof
Circular Connectors
We manufacture our own lines of connectors suitable for both explosive environments and safe zones.
Custom Made
Cable Harnesses
Using connectors from our own product lines as well as those from other manufacturers, we will manufacture a custom cable harness tailored to your mining system.
Comprehensive
Interconnect Solutions
We can provide a complete wiring solution with electrical components tailored to your mining facility.
TENEO TEX SERIES
Single & multipole highly configurable heavy-duty explosion proof connectors for hazardous environments.
ATEx Certified
IECEx Certified
IP68 Certified
CE Certified
EAC Certified
UL Listed
Meets CSA
TENEO TSL SERIES
Single & multipole versatile, heavy-duty, threaded and environmentally-sealed connectors.
IP68 Certified
CE Certified
EAC Certified
TENEO MOG SERIES
Single pole environmentally-sealed high power connectors for harsh environments.
IP68 Certified
CE Certified
EAC Certified
UL Listed
Meets CSA
TENEO TNR SERIES
Single pole high-power connectors with rubber insulator.
IP68 Certified
CE Certified
EAC Certified
UL 94 V–0
Production of 1.5km Long EX Cable Harnesses for an Oil Rig in Uzbekistan
A customer from Tashkent approached us to completely replace the degraded cabling on an operating oil drilling rig in Uzbekistan. The project required a custom-made, robust solution from scratch to seamlessly integrate into the existing system during an overhaul, significantly extending its operational lifespan.
We designed and manufactured three robust cable harnesses exceeding 1.5 kilometers in total length—including a 580-meter power harness weighing 1.6 tons. The heavy-duty solution utilizes ATEX/IECEx certified TENEO TEX, TSL, and TNR series connectors, making the system fully spark-proof and compatible with Amphenol and Winchester standards. Built for extreme conditions, the harnesses transmit currents up to 1,000 A (power) and manage up to 50 individual wires (control). They provide complete resistance to aggressive chemicals, electromagnetic interference, and severe mechanical handling, such as being run over by heavy cargo vehicles.
Project Scope & Deliverables:
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Project Engineering: Clarified technical parameters and created a custom project layout combining specialized wires, antistatic shielding, and heavy-duty connectors.
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Antistatic Protection: Manually wound 900 meters of specialized braid onto the cabling to implement robust antistatic shielding.
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Connector Integration: Fitted control harnesses with TENEO TEX and TSL industrial connectors, and the high-power harness with TENEO TEX and TNR series connectors.
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Custom Mounting Solutions: Designed and manufactured heavy 50 kg stainless steel flanges, allowing the customer to secure the giant bundles directly into the existing oil tower structure without any modifications.
Custom made express solutions – within 11 weeks we developed and delivered unique cable harnesses to an oil drilling rig in Siberia
Located in the Polar Urals, ENISEY drills year-round in temperatures below -45°C. This harsh climate destroyed the drilling rig’s original Chinese power and control cable harnesses in just one winter. Seeking a robust, high-quality replacement, ENISEY required a custom solution due to a lack of technical documentation and incompatible Chinese technology. The new harnesses needed to connect directly to the existing Top Drive and switchboard without costly modifications.
While this non-standard request stopped other suppliers, we accepted the challenge. Despite a 3,700 km distance and communication barriers, we designed, manufactured, tested, and installed 400 meters of custom cable harnesses (weighing over 8 tons) from scratch in just three months. Proving our philosophy that “every problem has a solution,” our holistic approach exceeded the original harnesses’ lifespan by over a thousand times during five years of trouble-free service.
Project Scope & Deliverables:
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Design & Documentation: Created project documentation, 3D models, and prototypes for connectors, harnesses, and components (clamps, holders, hose protectors).
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Laboratory Testing: Verified component and potting compound resistance in extreme Siberian conditions down to -70°C.
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In-House Production: Manufactured connectors, assembled and sealed polyurethane-encapsulated harnesses, and wound bundles onto drums.
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Logistics & Installation: Transported the equipment 3,700 km (including heavy-duty helicopter delivery) followed by on-site assembly, professional wiring, and testing.
Compatible replacement for damaged Bentec cable harness
MND a.s., a leading Czech oil and gas extraction company operating globally, faced an urgent issue in 2016. A night shift on the Bentec drilling rig near Borkovany (Czech Republic) reported a failure in the auxiliary cable harness leading from the main switchboard to the Top Drive, caused by long-term wear. To minimize economic losses, MND needed a high-quality, rapid, and local solution.
Thanks to our mining industry expertise and status as a direct manufacturer of explosion-proof TEX series EX connectors, MND chose us. We arrived on-site the next day to assess the Bentec rig. The new harness required long-term resistance to aggressive petroleum substances, rough handling, and strict EX certification for explosive environments.
We immediately processed the project documentation and delivered a custom drawing. The complete EX cable harness in the AUX-SERVICE-LOOP design was manufactured at our North Bohemian factory and delivered in less than 2 months. This initial emergency response established a long-term partnership, and our harness has been operating flawlessly for over 4 years.
Project Scope & Deliverables:
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Assessment & Design: Measured the site, proposed compatible solutions, checked provided documentation, and created a custom harness drawing.
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Material Selection: Selected specialized cables and hoses suited for specific climatic conditions.
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In-House Production: Manufactured TEX series connectors, stainless steel hose endings, and stainless steel harness holders.
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Harness Assembly: Pulled cables through hoses, fitted holders/endings, applied potting compound, and wired all connectors.
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Finishing & Logistics: Fitted free ends with a spiral braid (secured via adhesive shrink tubes), wound the harness onto a wooden drum, and secured it for transport.
