Power Transmission Lines Stringing Equipment Machine Tools Hydraulic Tensioner

The SA YQZ Hydraulic-Tensioner is a heavy-duty hydraulic puller and tensioner widely used in overhead transmission line construction for conductor stringing, reconductoring, and maintenance operations. It is designed to provide precise, adjustable tension control during the installation or replacement of conductors, including bundled conductors.

Key Features of SA YQZ Hydraulic-Tensioner (Model SA-YQZ 2X45 as an example):

• Maximum Tension Force: 2 × 45 kN or 1 × 90 kN

• Continuous Tension Force: 2 × 40 kN or 1 × 80 kN

• Maximum Stringing Speed: 5 km/h

• Maximum Conductor Diameter: Up to 40 mm

• Number of Grooves: 2 sets of 5 grooves each (for two bundled conductors)

• Bullwheel Diameter: 1500 mm

• Engine: Cummins water-cooled diesel engine, 118 kW power, 2200 rpm

• Weight: Approximately 5200 kg

• Dimensions: 4.72 m × 2.30 m × 2.76 m

• Mobility: Mounted on a trailer with a rigid axle, towable at speeds up to 15 km/h

Functional Highlights:

• Closed hydraulic circuit with infinitely variable tension control in both pulling and releasing directions, allowing precise tension adjustment.

• Presettable maximum tension and pull force with real-time tension monitoring via a gauge.

• Automatic spring-applied hydraulic released brake ensures safety by engaging in case of hydraulic failure.

• Hydraulic oil cooling system to maintain stable operation under heavy loads.

• Bull wheels lined with wear-resistant MC nylon segments to protect conductors from damage.

• Dual hydraulic power outlets to operate two hydraulic reel stands simultaneously.

• Hydraulic front jack for stable setup during operation.

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Typical Applications:

• Pulling and stringing two bundled conductors simultaneously in overhead transmission line projects.

• Reconductoring and conductor replacement on existing power lines.

• Used in conjunction with hydraulic drum stands and other stringing equipment for efficient conductor handling.

Main Components and Quality:

• Engine: Cummins water-cooled diesel engine (reliable and powerful).

• Hydraulic pump and motor: Rexroth (German brand), ensuring precise hydraulic control.

• Reducer: Italian brand R.R., known for durability.

• Hydraulic valves: Rexroth (German).

• Hydraulic instruments: WIKA (high precision).

• Radiator: AKG, for effective cooling.

• Quick couplings: EMB.

Summary

The SA YQZ Hydraulic-Tensioner is a robust, high-capacity hydraulic puller-tensioner ideal for demanding overhead transmission line stringing tasks, especially for large or bundled conductors. Its advanced hydraulic system, safety features, and powerful engine make it suitable for efficient, safe, and precise conductor installation and replacement.

This equipment is manufactured in China, with a monthly production capacity of about 10 sets, and is typically supplied complete with hydraulic drum stands and mounted on trailers for easy transport and deployment on-site.