Ed201/8 Electro-hydraulic Thruster

Ed201/8 Electro-hydraulic thruster

The Ed201/8 is a heavy-duty Electro-hydraulic Thruster (also known as a Hydraulic Push Rod or Thruster). It is a compact drive unit that converts electrical energy into linear mechanical force. It is primarily used as the actuator for industrial braking systems (such as the YWZ series) and valve operations.

The model number breakdown is as follows:

Ed: The series designation (based on EMG technology), indicating a standard, non-explosion-proof electro-hydraulic thruster.

201: The Frame Size (indicating a large industrial unit).

8: The Nominal Stroke of 80 mm (The number usually represents the stroke in mm divided by 10).

💡 Key Features & Characteristics

Integrated Design:
The Ed201/8 integrates the motor, centrifugal pump, and oil cylinder into a single, compact unit. This design eliminates the need for external hydraulic lines or separate power packs.

High-Performance Motor:

Type: Non-immersed oil motor with B-class or F-class insulation for high heat resistance and long life.

Protection: The motor junction box is sealed with a cable gland, achieving a protection rating of IP55, making it suitable for dusty and damp environments.

Durable Construction:

Housing: The outer shell is made of die-cast aluminum alloy, which is lightweight, corrosion-resistant, and aesthetically pleasing.

Piston Rod: The rod is surface-hardened with hard chrome plating to reduce wear and prevent corrosion.

Seals: It utilizes double dust-proof seals and high-quality hydraulic seals (often imported brands) to prevent leakage and extend service life.

Flexible Installation:
The cylinder housing features a balance air chamber, allowing the thruster to be installed at any angle between 0° and 180° (vertical or horizontal) without affecting performance.

Adjustable Timing (Optional):
The unit can be equipped with rising (H) and falling (S) valves. These allow for the stepless adjustment of the stroke speed (delaying the rise or fall time) to ensure smooth braking and reduce mechanical shock.

🏭 Typical Applications

The Ed201/8 is widely used in heavy industries for driving mechanisms that require linear force:

Brake Actuation: It is the standard actuator for YWZ4, YWZ5, YWZ8, and YWZ9 series electro-hydraulic block brakes.

Industrial Valves: Used to drive gate valves, butterfly valves, and other flow control devices.

Material Handling: Used in clamping devices, swing mechanisms, and chute gates.

Sectors: Metallurgy, ports, mining, construction, and water conservancy.

📋 General Technical Specifications

Note: The "Ed" series is the modern standard, largely replacing the older "YT1" series. While they are often interchangeable in terms of mounting dimensions, the Ed series offers better sealing and a more compact design. When replacing an old unit, verify the stroke length (80mm in this case) and thrust force to ensure compatibility with your brake or valve mechanism.

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