OMK-Ex40B Modulating Explosion-Proof Electric Actuator
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Performance
Parameter Type |
OMK-Ex20 | OMK-Ex30 | OMK-Ex40 | OMK-Ex60 | |||||||||||||
| DC24V | AC110V | AC220V | AC380V | DC24V | AC110V | AC220V | AC380V | DC24V | AC110V | AC220V | AC380V | DC24V | AC110V | AC220V | AC380V | |||
| Motor Power | 35W | 40W | 40W | 30W | 50W | 40W | 40W | 30W | 70W | 90W | 90W | 40W | 70W | 90W | 90W | 40W | ||
| Rated Current | 3.57A | 0.65A | 0.37A | 0.15A | 4.62A | 0.65A | 0.37A | 0.15A | 5.13A | 1.12A | 0.57A | 0.29A | 5.13A | 1.18A | 0.60A | 0.29A | ||
| Standard Time/Torque | 25S/200NM | 30S/300NM | 30S/400NM | 45S/600NM | ||||||||||||||
| Optional Time / Torque | 15S/100NM | 6S/80NM | 15S/200NM | 60S/400NM | ||||||||||||||
| Turning Angle | 0~90° Adjustable | |||||||||||||||||
| Total Weight (kg) | 10.0Kg | 10.0Kg | 10.5Kg | 10.5Kg | ||||||||||||||
| Cold Insulation Resistance(MΩ) | AC | |||||||||||||||||
Brand: OMKEE (Wuhan Omkee)
Certifications: ISO9001:2008 | CE Standard | Ex d IIB T4 Gb | IP68 Ingress Protection
Intelligent Proportional Control: The OMK-Ex40B is an advanced modulating-type explosion-proof electric actuator designed for high-precision, continuous flow control. Featuring a compact layout, seamless installation, and a massive 400Nm torque output, this heavy-duty unit perfectly replaces high-end imported brands in the most safety-critical automated environments.
1. Broad Industrial Application Fields
OMKEE intelligent modulating actuators are widely trusted worldwide to control valves and dampers in automated systems across hazardous and harsh environments:
Oil, Gas & Chemical Refining: High-precision proportional dosing and hazardous fluid pipelines.
Power Infrastructure: Automated flow regulation in hydroelectric and thermal power generation.
Water & Wastewater Treatment: Continuous flow adjustment in municipal drainage and large-scale industrial water treatment.
Heavy Metallurgy: Intelligent fluid control in iron, steel, and smelting automation lines.
Specialized Production: Advanced processing in pulp & paper mills, pharmaceutical synthesis, and food processing.
Marine & Building Services: Marine engineering, shipbuilding, and premium HVAC/building automation.
2. Premium Component Engineering & Features
Advanced Multi-Treated Enclosure
Material: Heavy-duty ADC12 die-cast aluminum.
Surface Treatment: Subjected to rigorous artificial aging, shot blasting, vacuum impregnation (sealing), and surface oxidation.
Premium Finishing: Coated with authentic AkzoNobel electrostatic powder (thickness $>0.2\text{ mm}$), ensuring excellent chemical resistance and thermal stability at temperatures above 150°C.
High-Torque Worm Gear System
Worm Gear: Forged from a custom-proportioned aluminum-bronze alloy blank and CNC-machined to exact tolerances.
Worm & Output Shaft: Precision-machined from heavy-duty 40Cr alloy steel, fully heat-treated, and finished with a black-oxide layer for superior rust prevention.
Spline Connection: Joined via a heavy-duty spline layout, eliminating the structural weak points and shaft snapping defects common in traditional integrated single-piece shafts.
Precision Quenched Gearbox
All internal reduction gears are precision-machined from high-quality tempered steel, offering exceptional strength, low running noise, high fatigue limits, and superior wear resistance.
Both ends of the reduction shafts are anchored by precision deep-groove ball bearings to absorb heavy operational impacts. The The reduction housing is die-cast from ADC12 aluminum for maximum structural alignment.
Industrial-Grade Motor
Engineered to handle complex industrial duty cycles and high-torque demands. The motor handles 1.3x to 1.5x its rated torque.
Critical parameters—such as temperature rise, rotational inertia, and insulation voltage resistance—are optimized and lab-tested to guarantee continuous, frequent start-ups under full or overloaded capacities.
P6-Grade Low-Noise Bearings
Internal bearings feature tight clearance, low noise, and high running accuracy, strictly matching the EMQ (ZV2) low-noise standard and a P6 precision rating.
This is achieved through specialized super-finishing of the raceways, enhanced ball sphericity, and optimized cage configurations.
Advanced Stroke Limit Control
Features an independently developed, user-friendly stroke control device. Operational calibration and field adjustment are easily executed through the convenient top "Adjustment Shaft," simplifying field commissioning.
Premium Seals & Lubrication
Outfitted with imported German Obos dual-lip skeleton TC oil seals and premium O-rings for exceptional fluid exclusion.
The internal gearbox is pre-lubricated for life with authentic imported Mobil industrial-grade grease.
3. Engineering Layout & 100% Quality Assurance (QA)
UG Digital Simulation: Designed by senior valve automation specialists with over 10 years of experience. Structures undergo comprehensive 2D/3D modeling and advanced UG software simulation before die-casting mold approval.
4-Axis CNC Precision Machining: Vital components are processed on imported high-precision 4-axis machining centers utilizing high-efficiency pneumatic fixtures to eliminate alignment errors.
Coordinate Measuring Machine (CMM): Post-machining dimensions are fully verified via high-precision CMM testing to align perfectly with target engineering tolerances.
The 5-Stage Factory Testing Protocol (100% Inspection):
Torque Verification: Every completed unit is torque-tested under both nominal and negative voltage conditions to verify a stable 1.3x torque safety margin.
Dielectric/Insulation Test: Tested at an extra-high voltage of 1500V (for AC110V/220V systems) or 1800V (for AC380V systems) applied to the motor leads for 1 minute without any trace of insulation breakdown.
Batch Endurance Testing: Regular random batch sampling subjects units to continuous full-load operating tests for 48 hours to verify extreme operational endurance.
Pressurized Submersion Leak Test: Every single actuator is submerged in water and pressurized to 0.2 MPa internally through its waterproof cable gland for 1 minute. A total absence of air bubbles certifies a flawless hermetic seal.
Final Quality Audit: Certified QA inspectors complete a comprehensive aesthetic, mechanical, and electronic review of each unit prior to issuing the final factory release stamp.
Why Choose OMKEE? > If you have lost confidence in standard domestic electric actuators, OMKEE offers an elite tier of reliability. Our meticulous raw material choices, component standards, and rigorous 5-stage testing workflows comfortably match or exceed major joint-venture and premium imported Japanese brands. Order an evaluation sample today to experience precision automation firsthand.
