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ED301/12 Ex Series Explosion-Protected Electro-Hydraulic Thruster
🛠️ Product Overview: ED301/12Ex Explosion-Protected Thruster This thruster is an upgraded version of the standard ED series, modified with specialized sealing and materials to meet strict explosion protection standards. Model Number: ED301/12Ex Type: Explosion-Protected / Flameproof /...
Description
🛠️ Product Overview: ED301/12Ex Explosion-Protected Thruster
This thruster is an upgraded version of the standard ED series, modified with specialized sealing and materials to meet strict explosion protection standards.
Model Number: ED301/12Ex
Type: Explosion-Protected / Flameproof / Electro-Hydraulic Thruster
Action: Push (Extend) on Power On.
Power On: Motor drives pump to extend rod (Releases brake).
Power Off: Spring returns rod (Applies brake).
Key Feature: Integrated Safety. The entire unit, including the motor and electrical components, is housed in a flameproof enclosure.
📋 Key Technical Specifications
| Parameter | Specification for ED301/12Ex |
|---|---|
| Thrust (Pushing Force) | 3000 N (Approx.) |
| Stroke Length | 120 mm |
| Explosion Protection | Ex d IIB T4 or Ex d I (Typical) |
| Power Supply | AC 380V / 50Hz (Standard), other voltages available |
| Insulation Class | F Class (High thermal tolerance) |
| Protection Level | IP55 / IP54 |
| Weight | Approx. 40-45 kg (Varies by exact variant) |
✨ Key Features
Explosion-Proof Enclosure: The motor housing is made of cast iron or steel with precision-machined flameproof joints. This prevents internal sparks from igniting gases like Methane (CH4), Propane, or Hydrogen outside the housing.
Non-Oil-Immersed Motor: The electric motor is sealed separately from the hydraulic oil chamber. This prevents oil from degrading the motor windings and ensures safety.
Double Sealing: Features high-quality seals on the piston rod to prevent oil leaks and to stop explosive dust or gases from entering the internal mechanism.
Low Noise & Smooth Operation: Provides smoother braking/release cycles compared to electromagnetic actuators, reducing mechanical shock in hazardous areas.
Multi-Angle Installation: Can be installed at various angles (0° to 180°) without affecting performance, offering flexibility in tight spaces.
🏭 Typical Applications
The ED301/12Ex is used in high-risk industrial environments:
Chemical Plants: Where flammable vapors or gases are present.
Oil & Gas Refineries: For safety braking on cranes and conveyors.
Grain Silos & Flour Mills: To prevent dust explosions.
Paint Spray Booths: Where solvent fumes create explosive atmospheres.
💡 Operational & Maintenance Tips
Cable Glands: Always use certified explosion-proof cable glands. Never remove the sealing washers inside the terminal box.
Flameproof Joints: Regularly inspect the mating surfaces of the housing for scratches or dents. Do not paint the flameproof joints, as this can compromise the seal.
Oil Level: Check the hydraulic oil level periodically. Use oils like DB-25 or YH-10 suitable for the ambient temperature.
Heating Element: In very cold climates, ensure the heating element (if installed) is functioning to prevent oil from thickening and causing slow operation.
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