Winch Type Hydraulic Brake Tensioner For Overhead Transmission Line Cable Pulling Stringing
A Winch Type Hydraulic Brake Tensioner is a specialized tensioning device commonly used in overhead transmission line construction and cable stringing operations. It combines a hydraulic winch mechanism with a brake system to provide controlled tension on cables or conductors during installation.
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A Winch Type Hydraulic Brake Tensioner is a specialized tensioning device commonly used in overhead transmission line construction and cable stringing operations. It combines a hydraulic winch mechanism with a brake system to provide controlled tension on cables or conductors during installation.
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: Uses hydraulic pressure to apply braking force, ensuring smooth and stable tension control during cable pulling or stringing.
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: Equipped with a winch drum and tension sprocket wheels that grip and pull the cable with adjustable tension.
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: Typical models like the SA-YZM7.5 provide a maximum tension of 7.5 kN and a maximum line speed of 40 km/h (or 40 m/min), suitable for medium-duty cable stringing tasks.
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: Usually built with a robust frame housing the hydraulic control system, braking mechanism, and tension wheels with grooved liners to protect cables.
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: For example, the SA-YZM7.5 model measures approximately 2300×1250×1620 mm and weighs around 450 kg.
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: Designed for conductor wires up to certain sizes, e.g., ≤ LJ-240 or ≤ LJ-185/10, depending on the model.
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: Includes a low-speed, high-torque motor, direct-acting relief valve, and oil filtration to maintain system stability and reliability.
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Overhead transmission line cable stringing
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Aerial cableway erection
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Passive tensioning in self-supporting aerial cables and small tension wires
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Construction in mountainous or difficult terrain due to its relatively light weight and portability
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: Hydraulic braking allows for precise tension control, reducing the risk of cable damage.
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: Easier to transport and operate in remote or rugged areas.
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: Designed for ease of use with a straightforward structure.
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: Hydraulic components and robust frame ensure long-term reliability.
| Parameter | Value |
|---|---|
| Maximum Tension | 7.5 kN |
| Rated Tension | 5 kN |
| Maximum Line Speed | 40 km/h (40 m/min) |
| Bullwheel Diameter | Φ1100 mm |
| Dimensions (L×W×H) | 2300×1250×1620 mm |
| Weight | 450 kg |
| Applicable Conductor Wire | ≤ LJ-240, ≤ LJ-185/10 |
| Hydraulic Oil Type | No.46 Anti-wear Hydraulic Oil |
| Max Oil Temperature | 70 °C |
| Rated Working Pressure | 25 MPa |
The Winch Type Hydraulic Brake Tensioner is an essential tool in overhead line construction, providing reliable and adjustable tension through a hydraulic braking system combined with a winch. Its design supports efficient, safe, and controlled cable stringing, especially beneficial in challenging environments such as mountainous areas.
