Explosion Proof VFD 3 Ton Electric Chain Hoist Exd II CT4 IP65 Variable Speed G80 Chain 380V Yellow Precision

The KOEO EQFC03-01 is the most advanced explosion proof electric chain hoist available, combining VFD variable speed precision with full Exd II CT4 hazardous area certification. Featuring a flameproof 3.0 kW VFD-rated motor with IP65 protection, an ATEX-certified VFD controller housed in a separate flameproof enclosure, dual explosion proof DC brakes, and anti-static G80 alloy steel chain, the EQFC03-01 brings stepless 0.5-5.0 m/min speed control to Zone 1 and Zone 2 lifting operations. The soft-start and soft-stop VFD ramps eliminate mechanical shock in flammable atmospheres where spark prevention is critical, while creep-speed micro-positioning at 0.5 m/min enables precise handling of sensitive chemical containers and pharmaceutical intermediates.

• ATEX-Certified VFD Variable Speed Control: The flameproof VFD controller is independently certified Exd II CT4, providing stepless speed regulation from 0.5 to 5.0 m/min within a sealed enclosure that prevents ignition propagation. Soft-start ramps eliminate mechanical shock and spark-generating friction during acceleration.
• 3.0 kW Flameproof VFD Motor: Purpose-built VFD-rated explosion proof motor with enhanced winding insulation for inverter-generated voltage spikes. IP65 flameproof enclosure with Class H 180°C insulation ensures reliable operation in high-temperature petrochemical environments with continuous VFD duty.
• Creep-Speed 0.5 m/min Micro-Positioning: Ultra-slow precision mode enables millimeter-accurate positioning of chemical containers, reactor components, and pharmaceutical intermediates. Eliminates impact risk during final placement in Zone 1 classified areas where any mechanical contact requires spark prevention analysis.
• Flameproof VFD Control Interface: The separate flameproof VFD enclosure features a digital display visible through a certified window, showing real-time speed and diagnostic codes. Speed presets are configured through intrinsically safe magnetic switches, requiring no physical access to the controller internals.
• Dual Explosion Proof DC Brakes: Twin independent flameproof electromagnetic DC brakes provide redundant load holding with zero drift during VFD precision positioning. Both brakes engage instantly on emergency stop, tested for 1 million VFD-modulated cycles.
• Anti-Static G80 Chain (Diameter 10.0 mm): Premium 10.0 mm G80 chain with anti-static treatment and hardened guides optimized for VFD variable-speed operation. The 4:1 safety factor chain handles rapid acceleration and deceleration cycles without elongation in flammable atmospheres.
• Complete ATEX VFD Documentation: Each hoist includes separate ATEX certificates for the motor, VFD controller, pendant, and brake assemblies, plus a System Integration Declaration confirming the complete assembled hoist meets Exd II CT4 requirements for Zone 1 and 2 operation.

The EQFC03-01 is engineered for pharmaceutical intermediate reactor charging in Zone 1 classified areas, specialty chemical batch processing with precision ingredient handling, LNG facility maintenance requiring controlled lifting near cryogenic equipment, offshore platform chemical injection skid handling, and any hazardous area application where VFD precision control significantly enhances both product safety and operational efficiency. The combination of flameproof VFD and Exd II CT4 certification addresses the growing demand for precision automation in the chemical process industries.

Each EQFC03-01 is packed in a KOEO-branded heavy-duty plywood case with anti-static wrapping, reinforced steel frame, high-density foam, and silica gel desiccant packs. Anti-static export-grade outer carton. Every unit undergoes 100 percent factory load testing at 1.25 times rated capacity (3.75 tons) with complete VFD functional verification, ATEX flameproof integrity testing, spark generation analysis, and separate certification verification for each flameproof component. CE certified, ATEX 2014/34/EU plus EMC 2014/30/EU compliant. ISO 9001:2015 manufactured. G80 chain EN 818-7 certified. Delivery within 20 to 25 working days for stock, 35 to 45 days for production.