OMK-Ex20F 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)

Certification: ISO9001:2008 | CE | Ex db IIB T4 Gb | IP68

Engineered for Extreme Environments: The OMK series features a highly compact structure, effortless installation, premium build quality, and field-proven reliability. Designed to replace high-end imported alternatives, it delivers uncompromised performance under the harshest industrial conditions.

1. Applications

OMKEE electric actuators are widely utilized across demanding global industries, including:

• Petroleum, Petrochemical & Chemical Processing

• Power Generation (Hydroelectric & Thermal)

• Water & Wastewater Treatment / Drainage

• Iron, Steel & Metallurgy

• Pulp & Paper Manufacturing

• Pharmaceuticals & Food Processing

• Marine, Shipbuilding & Building Automation

2. Premium Component Features

Heavy-Duty Enclosure

• Material: Premium ADC12 die-cast aluminum.

• Surface Treatment: Subjected to aging treatment, shot blasting, and advanced electrostatic powder coating (thickness $>0.2\text{ mm}$, temperature resistance $>150^\circ\text{C}$).

High-Torque Worm Gear System

• Worm Gear: Forged aluminum-bronze alloy blank machined to precise tolerances.

• Worm & Output Shaft: CNC-machined from 40Cr alloy steel, heat-treated, and black-oxide coated for superior rust prevention.

• Spline Connection: The output shaft and worm gear utilize a heavy-duty spline connection, eliminating the risk of shaft snapping common in inferior single-piece designs.

Precision Reduction Gearbox

• Fully machined from high-quality quenched and tempered steel, offering high precision, high strength, low noise, and exceptional wear/fatigue resistance.

• Both ends of the reduction gear shafts are stabilized by precision deep-groove ball bearings to cushion heavy load impacts. The casing is die-cast from ADC12 aluminum for smooth, stable power transmission.

Industrial-Grade Motor

• Specifically engineered for complex industrial duty cycles. Custom-designed to handle 1.3x to 1.5x the rated torque.

• Optimized heat dissipation, low rotational inertia, and high dielectric strength ensure reliable, frequent start-ups under full or overloaded conditions.

High-Precision Bearings

• Equipped with premium P6-grade EMQ (ZV2) low-noise bearings.

• Features ultra-low clearance and vibration, achieved through specialized raceway and ball surface roughness control, strict sphericity standards, and optimized cage geometry.

Advanced Controls & Electronics

• Stroke Control: Features a proprietary, user-friendly stroke limit mechanism. Adjustments are made quickly and accurately via the top "Adjustment Shaft."

• Sealing System: Outfitted with premium imported German Obos dual-lip skeleton TC oil seals and O-rings for superior fluid exclusion.

• Lubrication: Pre-lubricated for life with premium imported Mobil industrial grease.

• Sakae Precision Potentiometer: Uses an imported Japanese Sakae conductive plastic potentiometer ($0\text{--}1000\,\Omega$, total resistance tolerance $\pm15\%$, independent linearity $L\pm0.5\%$). Features a unique spring-loaded backlash elimination mechanism to ensure real-time sampling and exceptional positioning accuracy.

• Position Transmitter: Supports both $4\text{--}20\text{ mA}$ and $0\text{--}10\text{ mA}$ systems. Includes a highly responsive mechanical zero-point adjustment and a displacement amplification mechanism for high-precision measurement of micro-strokes within $10\text{ mm}$.

3. Engineering & Quality Control

• 3D Simulation & Modeling: Designed by senior engineers with over 10 years of field experience. All components undergo rigorous 2D/3D modeling and UG software simulation before mold manufacturing.

• Advanced CNC Machining: Enclosures are machined on high-precision imported 4-axis machining centers utilizing high-efficiency pneumatic fixtures.

• CMM Inspection: Critical dimensions are strictly verified using Coordinate Measuring Machines (CMM) to guarantee tight tolerance compliance.

• The 5-Stage Quality Testing Factory Protocol:

  1. Torque Testing: Every single unit is tested under rated and negative voltage to ensure it achieves a $1.3\text{x}$ torque safety margin.

  2. Dielectric/Withstand Voltage Test: Tested at $1500\text{V}$ high voltage for 1 minute to ensure perfect insulation integrity.

  3. Load/Endurance Test: Random batch sampling for continuous full-load operation for 48 hours.

  4. Submersion Leak Test: Every unit is submerged in water and pressurized to $0.2\text{ MPa}$ via the cable gland for 10 minutes to verify a perfect hermetic seal (zero bubbles).

  5. Final Quality Audit: A dedicated QA inspector reviews each unit's metrics before issuing the final exit clearance.

Why Choose OMKEE? > If you have lost confidence in standard domestic actuators, OMKEE offers the ultimate upgrade. Our build quality, component selection, and strict testing protocols match or exceed major joint-venture and Japanese brands. Order a sample today and experience the difference in precision engineering.