BEd201/12 Explosion-Protected Electro-Hydraulic Thruster

BEd201/12 Explosion-Protected Electro-Hydraulic Thruster

The BEd201/12 is a heavy-duty, Explosion-Protected (Flameproof) Electro-Hydraulic Thruster. It is an integrated drive unit combining a motor, centrifugal pump, and hydraulic cylinder, specifically engineered to operate safely in hazardous environments containing flammable gases or coal dust.

The model number breakdown is as follows:

BEd: The series designation for Explosion-Protected Electro-Hydraulic Thrusters.

201: The Nominal Thrust Force of 2000 N (approx. 200 kgf).

12: The Nominal Stroke (Lift) of 120 mm.

💡 Key Features & Characteristics

Explosion-Proof & Hazardous Area Rated:

Certification: Features an Ex d I flameproof enclosure, making it strictly suitable for use in underground coal mines (non-mining faces), such as belt conveyors and mine hoisting equipment.

Safety: The motor and junction box are designed to contain any internal explosion and prevent it from igniting the surrounding atmosphere. It complies with the Coal Mine Safety Regulations (2006).

Robust Performance:

Thrust & Stroke: Delivers a nominal force of 2000 N with a 120 mm stroke, making it ideal for driving large industrial drum brakes or heavy-duty valves.

Power Supply: Standard industrial 3-phase AC 380V/660V / 50Hz, with an allowable voltage fluctuation of +10% to -25%.

Motor: Equipped with a Class F insulation motor, capable of operating in S1 (continuous) or S3 (intermittent, ≤≤ 60% duty cycle) working modes.

Durable Construction:

Sealing: Features a double-layer protective seal on the piston rod and a double-layer sealing ring in the hydraulic oil chamber to prevent leaks, reduce wear, and greatly extend service life.

Environment: Designed to operate in ambient temperatures from -20°C to +40°C, with up to 95% relative humidity and in environments with a pollution degree of level 3.

Smooth Operation:

Mechanism: When powered, the motor drives the impeller to generate pressure oil, pushing the piston and connecting rod upward smoothly and quietly. When power is cut, the piston retracts via external force (e.g., a brake spring).

Maintenance: Known for its stable action, low noise, low power consumption, and convenient maintenance.

🏭 Typical Applications

The BEd201/12 is specifically built for high-risk and heavy industrial environments:

Mining: Underground coal mine belt conveyors (non-mining faces) and mine hoisting equipment.

Heavy Industry: Driving electro-hydraulic drum brakes (e.g., YWZ series) for cranes, metallurgy, and port machinery.

Automation: Operating various lever mechanisms to achieve reciprocating, swinging, or circular motions in semi-automated or automated equipment.

📋 General Technical Specifications

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Note: The BEd201/12 is a powerful, explosion-proof unit. The "201" indicates a 2000N thrust, and the "12" indicates a 120mm stroke. Always ensure the unit is properly grounded and that the power supply voltage matches the nameplate specifications. Because it is an explosion-proof device, never open the motor or junction box cover while it is energized.

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