Sapsons ACSR compression (stringing) machines are heavy-duty, high-performance hydraulic tools designed to join or terminate Aluminium Conductor Steel Reinforced (ACSR) cables in overhead power transmission lines. These machines crimp metal sleeves, joints, and dead-end clamps onto conductors using high pressure, ensuring mechanical strength and electrical conductivity.
Key Technical Specifications
Sapsons produces a range of these machines, typically characterized by their high tonnage and hydraulic operation:
• Robust Construction: The main body is often forged from a single piece of solid carbon steel, capable of withstanding extreme loads.
• High Compression Capacity: Available in various capacities, commonly including 100 MT, 125 MT and 150 MT models designed for heavy-duty stringing tasks.
• Hydraulic System: The machines feature double-stage (low and high pressure) in-built pumps for efficient compression. They are available in both hand-operated and power-operated (petrol/electric) models to accommodate different site requirements.
• Pump Configuration: Models feature both Single and Double Pump designs. Double-stage models include a low-pressure pump (often with a 22mm or 25mm plunger) for rapid die matching and a high-pressure pump (12mm plunger) for final compression.
Core Components
• Crimping Dies: Made of special alloy steel, heat-treated and chrome-plated for durability and precise results.
• Main Body: A monoblock design tested to withstand up to 130 MT loads.
• Ram: Self-retracting type, often fixed with four coiled springs for easy operation.
• Safety Features: Includes a release valve to bleed pressure and a safety valve to preset desired loads.
• Monitoring: Integrated pressure gauges measure thrust in tons to ensure correct compression.
Applications
These machines are essential for:
1. Mid-Span Jointing: Connecting two conductor ends in the middle of a span.
2. Dead-End Terminations: Installing & Securing conductors at the end of a transmission line..
3. Repair Sleeves: Compressing sleeves over damaged sections of a conductor.
4. Jumper Connections: Terminating conductors for jumper connections on towers.
Advantages
• High Reliability: The solid steel construction ensures durability.
• Portable Options: Manual hydraulic compressors provide high performance in remote areas without power.
• Quality Assurance: Designed for perfect crimping, ensuring maximum conductivity and strength.
Sapsons provides a complete range of accessories and tools alongside the compressor, including conductor cutters, winches and drum lifting jacks, making them a comprehensive provider for transmission line installation and maintenance projects.
