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Flameproof Engineering & Potentience Tracking
The OMK-Ex05C features a specialized spark-containment housing integrated with high-accuracy Japanese electronics to safely execute proportional monitoring.
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Ex db IIB T4 Gb Certification: Officially certified by the National Center for Quality Supervision and Regional Test of Explosion-proof Electrical Products (CQST). It aligns entirely with the strict requirements of GB 3836.1-2021 and GB 3836.2-2021.
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Imported Sakae Potentiometer: For continuous position tracking, the unit uses a genuine conductive plastic potentiometer from Sakae (Japan)
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Anti-Backlash Mechanism: The potentiometer assembly incorporates a unique spring-loaded backlash elimination device. This system cancels out gear transmission play and minimizes actuator backlash, ensuring continuous real-time sampling and superior positioning precision.
[Control Switch Command] ➔ [Flameproof Motor] ➔ [Anti-Backlash Spring Device] ➔ [Sakae Potentiometer] ➔ [Continuous Resistance Signal]Overall Dimensions and Performance Parameters
| Performance
Parameters Type Power |
OMK-Ex05 | ||||
| DC24V | AC24V | AC110V | AC380V | AC220V | |
| Motor Power | 13W | 10W | 10W | 6W | 10W |
| Rated Current | 1.28A | 1.50A | 0.24A | 0.07A | 0.15A |
| Standard Time/Torque | 20S/50Nm | ||||
| Optional Time/Torque | 4S/20Nm 10S/30Nm | 4S/20Nm 10S/30Nm 60S/50Nm | |||
| Turning Angle | 0 ~ 360° Adjustable | ||||
| Available Control Circuit | Types of A、B、C、D、E、F、G、H | ||||
| Total Weight | 3.0kg | ||||
| Insulating Resistance | DC24V/AC24V：100MΩ/250VDC AC110V/AC220V/AC380V：100 MΩ/500VDC | ||||
| Withstand Voltage Class | DC24V/AC24V：500VAC 1minutes、AC110V/AC220V:1500VAC 1minutes、AC380V:1800VAC 1minutes | ||||
| Protection Class | IP67 | ||||
| Explosive-proof grade | Exd Ⅱ BT4Gb | ||||
| Installation Angle | 360° at any angle | ||||
| Electric Interface | One G1/2 Water-proof Cable Connector（For types with 4-20mA DC, etc. control signals , add one more） | ||||
| Ambient Temperature | -30℃ ~+60℃ | ||||
| Optional Function | ◆Heater for eliminating moisture | ||||
Key Component Features & Material Engineering
1. Flameproof ADC12 Casing
The flameproof joint paths are enclosed within a heavy housing cast from premium ADC12 aluminum alloy. Following artificial thermal aging and shot-blasting, it is finished with a thermo-sprayed outdoor powder coating thicker than 0.2 mm that safely resists working temperatures above 150°C and aggressive chemical vapors.
2. High-Efficiency Motor with 1.5x Torque Safety Reserve
Hazardous lines often face erratic friction loads due to pressure drops or chemical crystallization. To maintain uninterrupted performance, OMKEE motors feature a 1.3x to 1.5x torque safety reserve. Parameters like thermal rise curves, rotational inertia, and insulation breakdown thresholds are heavily optimized to withstand frequent start-stop loops under full load.
3. Spline Joint and Forged Worm Gear Drive
Managing mechanical rotational shocks in hazardous environments requires maximum structural integrity. The inner copper worm wheel is forged from a high-performance aluminum bronze alloy, paired with a tempered 40Cr alloy steel worm shaft finished with black-oxide anti-rust plating. The output shaft and the worm wheel are linked via a robust spline connection to distribute torque evenly, avoiding snapping points.
4. Precision Steel Gearbox & Low-Noise Bearings
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Premium Reduction Gears: Precision-cut from high-grade quenched and tempered steel, the gear train delivers exceptional wear resistance, high fatigue strength, and low operating noise. The reduction box uses cast ADC12 aluminum for stabilized power transmission.
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P6 Deep-Groove Bearings: Both ends of the gear units are supported by P6-grade deep-groove ball bearings built to the strict EMQ (ZV2) standard. This controls internal vibration and resists sudden load shocks by focusing on optimal raceway surface roughness, ring roundness, and correct retainer design.
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Seals & Lubrication: Every unit is filled with imported high-performance Mobil grease and protected by dual-lipped skeleton TC oil seals from the German brand Oubaisi to guarantee a zero-leak system.
Design, Machining, and Quality Assurance Protocols
The OMK-Ex05C follows a closed-loop engineering process to ensure reliable performance for global buyers:
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UG Software Simulation: Experienced engineers design every component in 2D and 3D based on classical actuator theory and field usage data. Structural integrity and fits are verified using UG (Unigraphics) software simulation before die-cast molds are built.
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4-Axis Machining Centers: Fine metal cutting is executed on imported, high-precision 4-axis CNC machining centers equipped with rapid pneumatic clamps. Finished parts pass a Coordinate Measuring Machine (CMM) check to ensure all dimensions meet strict engineering tolerances.
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Factory Acceptance Testing (FAT): Before leaving the facility, 100% of production units must pass a mandatory multi-stage inspection sequence.
Pre-Shipment Inspection Protocol
Global Compliance and Applications
The OMK-Ex05C complies fully with the JB/T8219-1999 manufacturing standard for industrial electric actuators. Furthermore, OMKEE manufacturing plants maintain verified compliance with ISO 9001:2008 and the European Union CE & RoHS Certification, making this product ready for direct export into world markets.
Target Applications:
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Petrochemical & Energy: Oil refineries, onshore gas drilling stations, offshore platforms, gas pipelines, and thermal power plant fuel loops.
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Chemical Processing: Fine chemical plants, aggressive paint storage depots, fertilizer mills, and pharmaceutical powder cleanrooms.
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Industrial Utility: Waste gas scrubbing systems, sewage aeration lines, marine shipbuilding ballast systems, and automated paper mills.
