OMK-Ex60B Explosion-Proof Electric Actuator

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)

Product Category: Explosion-Proof Valve Automation / Quarter-Turn Electric Actuator

Compliance Standards: CE / ISO9001:2008 / ExdIIBT4 Gb / IP68

Product Overview

The OMK-Ex60B is a premium-grade explosion-proof quarter-turn electric actuator engineered for reliable, heavy-duty valve automation in harsh and hazardous industrial environments. Characterized by its highly compact structure, exceptional ease of installation, world-class component quality, and rugged reliability, the OMK series provides precise, failure-free motorized control for ball valves, butterfly valves, plug valves, and dampers worldwide.

Premium Mechanical & Component Features

1. Robust Industrial Enclosure

• Material: Premium ADC12 die-cast aluminum alloy for lightweight yet heavy-duty structural integrity.

• Surface Treatment: Subjected to an exhaustive post-casting process including aging treatment, shot blasting, chemical impregnation, and surface oxidation.

• Coating: Finished with high-grade AkzoNobel powder coating (thickness $>0.2\text{ mm}$), delivering exceptional anti-corrosion properties and thermal resistance exceeding 150°C without degradation.

2. High-Torque Worm & Output Shaft Transmission

• Worm Gear: Forged from mathematically proportioned aluminum bronze alloy blanks and precision machined to microscopic tolerances.

• Output Shaft & Worm: Crafted from high-tensile 40Cr alloy steel, subjected to advanced heat treatment for superior toughness, and finished with a black oxide treatment for rust prevention.

• Connection Type: The output shaft and worm gear utilize a highly secure spline connection, completely resolving the shaft twisting and snapping failures common in single-piece machined designs under heavy load stresses.

3. Precision Quenched Reduction Gearbox

• All gear stages within the reduction box are precision-cut from premium quenched and tempered steel, delivering high precision, exceptional structural strength, ultra-low acoustic profile, high fatigue limits, and superior wear resistance.

• Both ends of the reduction gears are supported and aligned by precision deep groove ball bearings to dampen noise and absorb long-term heavy load shocks. The gearbox frame is cast from rugged ADC12 alloy for smooth power transmission.

4. Specialized Industrial Motor

• Engineered explicitly to handle complex field conditions and frequent start-stop regulations. All motors are designed to deliver 1.3 to 1.5 times the rated torque requirement.

• Key parameters—such as temperature rise, rotational inertia, and voltage insulation limits—are uniquely optimized and verified through rigorous stress testing to guarantee continuous performance under peak load or over-load cycling.

5. High-Precision Bearings & Professional Seals

• Bearings: All bearings conform strictly to the EMQ (ZV2) low-noise, low-vibration standard, satisfying the P6 precision class through ultra-fine raceway polishing, optimized ball roundness, and structured cage alignment.

• Seals & O-Rings: Fully equipped with imported genuine German "Obers" dual-lip TC skeleton oil seals and premium gaskets.

• Lubrication: Pre-packed with high-performance imported Mobil grease for lifetime smooth operation.

6. Proprietary Stroke Adjustment Device

• Features an in-house developed, proprietary travel control mechanism. Through a top-accessible "Adjustment Shaft", plant operators can easily calibrate the travel limit switches, making on-site commissioning significantly simpler and more exact.

Rigorous Engineering, Manufacturing & Quality Testing

Every OMK series actuator is designed by engineers with over 10 years of professional expertise. Utilizing advanced UG 3D modeling and simulation software, potential design failure modes are solved prior to mold production. Machining is handled by imported high-precision 4-axis CNC machining centers equipped with quick-loading pneumatic clamping fixtures. Final dimensions are thoroughly audited via a 3D Coordinate Measuring Machine (CMM).

Before leaving the factory, 100% of the products must complete four strict inspection tests:

1. Torque Verification Test: Every unit is tested under rated and negative voltage configurations to guarantee a full 1.3x torque margin capability.

2. High-Voltage Dielectric Test: Tested at up to 1500V for 1 minute across any motor phase line without insulation breakdown or leakage.

3. Batch Load Endurance Run: Samples are randomly extracted from production batches to run continuously under full-rated torque load for 48 hours to confirm structural integrity and fatigue life.

4. Pressurized Submersible Leak Test: The complete assembly is pressurized internally to 0.2 MPa via the waterproof cable entry and fully submerged in a water tank for 1 minute. Zero bubble emission is required to pass the IP68 proof standard.

5. Final Final Inspection: Dedicated Quality Assurance inspectors carry out a multi-point visual and operational final audit on each item prior to boxing and dispatch.

Global Application Fields

The OMK-Ex60B is widely deployed globally across harsh industrial and automated process lines, including:

• Energy & Utilities: Thermal power plants, hydroelectric stations, industrial drainage, and irrigation networks.

• Hazardous Processes: Petroleum extraction, oil & gas pipelines, petrochemical refineries, and chemical processing plants.

• Heavy Industry: Iron & steel production, metallurgy facilities, and mining processing.

• General Utilities: Pulp & paper, industrial water treatment, marine/shipbuilding, pharmaceuticals, building automation, and commercial food processing.

Why Choose Omkee?

Omkee is fully certified under the ISO9001:2008 Quality Management System and holds European CE Certification, meeting all strict export quality standards.

If you are seeking a truly reliable alternative to standard domestic choices or foreign joint-venture brands (including Japanese joint ventures), the OMK series provides unmatched mechanical performance, higher stability, and rugged longevity. Samples are available for on-site evaluation and long-term industrial field trials.