SAPSONS manufacturers complete range of Transmission Line Tools . Our Hydraulic stringing (Compression ) machine available with both hand operated and power operated pumps. These tools are specially designed to work perfectly on all sizes of AAA, AAAC, ACSR conductors (namely Panther, Moose, Dog and Zebra, etc.) of EHV transmission lines.
An ACSR Compression Machine is a hydraulic crimping/press machine used in overhead power transmission lines to join or terminate ACSR conductors.
What ACSR?
ACSR = Aluminum Conductor Steel Reinforced
It is a conductor made of:
• Aluminum strands carry current (electrical conductivity)
• Steel core provides mechanical strength
It is widely used for overhead transmission lines because it is strong and lightweight and economical.
Description :
An ACSR Compression Machine is designed to apply high hydraulic pressure to compress:
• Joints
• Sleeves
• Dead-end clamps
• Tension fittings
• Splices
onto ACSR conductors securely and uniformly.
The machine ensures:
• Strong mechanical bonding
• Reliable electrical continuity
• Reduced line losses
• Safe operation of transmission lines
Main Components :
1. Hydraulic Pump
• Generates high pressure for compression.
2. Hydraulic Cylinder / Head
• Applies compressive force on the fitting.
3. Compression Dies
• Interchangeable dies according to conductor size.
4. Pressure Gauge
• Indicates operating pressure.
5. Flexible Hydraulic Hose
• Connects pump and compression head.
6. Electric / Manual Drive
• Can be motor-operated, battery-operated, or hand-operated.
Working Principle :
The machine works on the principle of hydraulic pressure.
F=P×A
Where:
F= compressive force
P= hydraulic pressure
A= piston area
High-pressure hydraulic oil moves the piston, which compresses the die around the conductor fitting.
Types of ACSR Compression Machines
1. Hand Hydraulic Compression Machine
• Portable
• Used for small conductors
• Suitable for field maintenance
2. Motorized Hydraulic Compression Machine
• Electrically operated
• Faster operation
• Used for large transmission projects
3. Battery-Operated Compression Tool
• Cordless and portable
• Common in modern line work
Applications :
Used in:
• Electrical transmission line construction
• Substation work
• Power distribution systems
• Conductor jointing and termination
• Repair and maintenance of overhead lines
Advantages :
• Produces uniform compression
• High joint reliability
• Saves installation time
• Reduces manual effort
• Improves safety and conductor life
Typical Technical Specifications
Parameter Typical Value
Compression Force 10–200 tons
Operating Pressure Up to 700 bar
Power Source Manual / Electric / Battery
Die Sizes According to conductor size
Application ACSR conductor fittings
Safety Precautions :
Use correct die size
Check hydraulic pressure limits
Inspect hoses for leakage
Wear insulated gloves and PPE
Ensure proper conductor alignment before compression
An ACSR Compression Machine is a hydraulic tool used to compress and secure fittings, joints, and clamps onto ACSR conductors in electrical transmission lines.
In Summary,
An ACSR Compression Machine is a hydraulic machine used in electrical transmission and distribution work to compress fittings, joints, and clamps onto:
Aluminium Conductor Steel Reinforced (ACSR) conductors.
It works by applying high hydraulic pressure through compression dies to create strong mechanical and electrical connections. These machines are widely used in overhead power lines, substations, and maintenance operations.
Main Features
• Hydraulic operation
• High compression force
• Interchangeable dies
• Portable or motorized designs
In simple terms, an ACSR Compression Machine helps securely connect ACSR conductors for safe and efficient power transmission.
