3 Ton Overhead Line Tensioner for single conductor stringing on 66 KV transmission line

Model: SA-YZ30A
Place of Origin: Zhejiang,China (Mainland)
Brand Name: Dongfang
Overhead Line Equipment: Overhead Lines Tensioner
Model: SA-YZ30A
Max. Tension force: 3 Ton 30 KN
Max. Stringing Speed: 5 km per hour
Max. pulling back force: 2 Ton 20 KN
Max. pull back speed: 1.5 km per hour
Max. diameter of conductor: 32 mm
Quantity of conductor: Single conductor


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Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:20000.0 USDProduction Capacity:20 sets per month
Trade Term:FOB,CFR,CIFPacking:container plywood case
Payment Terms:L/C, T/TDelivery Date:30-45 days
Min. Order:1 Set/Sets
Means of Transport:Ocean

3 Ton Hydraulic Cable Tensioner is used for single conductor or OPGW stringing on overhead transmisson line. It is equipped with water cooled diesel engine and hydraulic pump, Italian R.R. reducer, AKG radiator, and Wika Hydraulic instrument.

Ningbo Dongfang Macinery of Power Co., Ltd. designs and manufactures complete range of hydraulic tensioners for overhead transmission line from 1990's. Ningbo Dongfang is the sole manufacture who can provide whole set of tension stringing equipment and tools for the overhead transmission line and underground cable stringing in China. We designed hydraulic conductor tensioner for overhead transmission line up to 24 tons capacity, the big hydraulic conductor tensioner 4 X 60 KN can be used for big conductors stringing up to 45mm diameter, with 4 independent hydraulic motors for driving four sets of bull wheels.


Compare to the mechanical friction tensioner, the hydraulic conductor tensioner have following features:

1) The Tension force of hydraulic tensioner can be controlled stepless, the tension force is stable in the stringing.

2) The hydraulic system of Tensioner has over load protection system, the max. tension force of conductor tensioner could be pres-set, this function could protect the conductor and reduce the wear of machine parts. The operation prevent the wear of conductors in the stringing, and reduce the electric power loss caused by corona.

3) The cooling system of hydraulic tensioner is also driven by hydraulic oil, it is more efficient and stable.

4) The modern hydraulic conductor tensioners are equipped with high performance discharge pump and hydraulic motors, for setting up closed hydraulic circuit system. The hydraulic reaction speed is very fast and sensitive. Most of hydraulic tensioners also have pulling functions.

5) The hydraulic system also can be electric controlled include the hydraulic pump and hydraulic valve, the tension procedure could be registered by computer, and remote controlled.

3 TON Hydraulic Tensioners (Suitable for both conductor and OPGW, ADSS optic fiber cable)

Item No.




Max. Tension Force (KN)


Continuous Tension Force (KN)


Max. Stringing Speed(km/h)


Max. Pullback force (KN)


Max. Pullback speed (km/h)


Diameter of wheel (mm)


Number of grooves


Max. Conductor Diameter (mm)


Model of Engine


Power of Engine


Rotate Speed of Engine (rpm)


Electrical system:


Weight (kg)


Dimension (m)

3.56 x 1.60 x 2.22

Application: It is suitable for single conductor, earth wire, OPGW and ADSS optic fiber cable stringing in overhead transmission line stringing operation.


-Closed hydraulic circuit, infinitely variable tension force control and constant tension conductor stringing.

-The max. tension / pull back force can be preset, the tension force can be read from tension gauge

-Spring applied hydraulic released brake acts automatically in case of hydraulic failure to ensure line safety

-Hydraulic oil cooling system

-Bull wheels lined with wear proof MC nylon lining segments

-With rigid axle for towing at max. speed of 15 km/h

Main components:

-Engine: Chinese famous branded water-cooled diesel engine

-Main pump: Sauer (USA)

-Reducer: R.R. (Italian)

-Hydraulic Instrument: WIKA (German)

-Radiator: AKG (German)
-Imported Gasoline Engine is optional.

1. SA-YQ40 Hydraulic Puller

Item No.




Stringing capacity

1 pilot steel wire rope

Max. Pulling Force (KN)


Max. Continuous Pulling Force (KN)


Max. Pulling Speed (m/min)


Pulling force at max. speed:

20 KN

Root Diameter of Bull wheel (mm)


Number of grooves


Max. Steel rope Diameter (mm)


Model of Diesel Engine

Water cooled diesel engine

Power of Diesel Engine

60 KW

Rotate Speed of Engine (rpm)


Electrical System


Weight (kg)


Dimension (m)

3.5 x 2.0 x 2.3

Application: The hydraulic puller is used to pull pilot steel wire rope for stringing conductors in overhead transmission line construction. It is fully hydraulic controlled, easily used and maintained.


- Closed hydraulic circuit,infinitely variable speed control in both rotating directions.

- The max pulling force for stringing operation can be preset, pulling force in the rope can be read on the line pull gauge.

- Spring applied hydraulic released brake acts automatically in case of hydraulic failure to ensure safety. Automatic over pulling protection system

- Hydraulic oil cooling system.

- Heat treated wear-proof bull wheels

- With rigid axle for towing at high speed..

- With GSP1400 steel drum.

- Integral hydraulic self-loading reel winder with automatic level wind.


Main Components:

- Engine: Cummins water-cooled diesel engine.

- Main variable displacement hydraulic pump and main motor: Rexroth (German)

- Reducer: R.R. (Italian)

- Reel winder motor: Danfoss (Danish)

- Main hydraulic valves:  Rexroth

- Hydraulic instruments: WIKA (German)

- Radiator: AKG (German)

We have designed and manufactured whole series of tensioners for single conductor to six bundled conductors stringing from 33 KV up to 1000 KV transmission line construction.


Our Series of Hydraulic Conductor Tensioner


Max. Tension Force


Max. Diameter of Conductor


30 KN

Single conductor or OPGW

32 mm


40 KN

Single conductor or OPGW

40 mm


70 KN

Single or Two Conductors

32 mm


80 KN

Single or Two Conductors

40 mm


100 KN

Single or Two Conductors

40 mm


110 KN

Single or Two Conductors

40 mm


140 KN

Single or Two Conductors

42 mm


160 KN

Single or Two Conductors

45 mm


160 KN

Four or Two conductors

40 mm


160 KN

Four or Two conductors

40 mm


180 KN

Single or Two Conductors

45 mm


180 KN

Four or Two conductors

40 mm


200 KN

Four or Two conductors

45 MM



1. The machine will be shipped in container

2. We will ship the products within one month normally after receiving the payment.

3. Stock is available for standard product.


We have strong capacity for design and manufacture whole sets of stringing equipment and tools for overhead and underground transmission line stringing.


Why choose us:

1. High quality and competitive price, more than 30 engineers working in the design and quality control department.

2. Leading and biggest manufacture for stringing equipment in China.

3. 25 years of production experience and more than 1000 customers in the country and abroad market. The set of 4 ton puller and 3 ton tensioner have been sold to more than 20 countries.

4. Big stock condition for fast shipment.

5. Detailed pre-sales service and fast active after-sales service. Response within 12 hours after-sales service

Category: Overhead Conductor Tensioner