GT7LCB, Hydraulic Topside Bolt Tensioner, M100 - M105 Maximum Thread Range

Enerpac GT7LCB is a high-performance hydraulic topside bolt tensioner from the GT Series, engineered for precise, uniform tensioning of large-diameter bolts (M100–M105) on standard flanges such as ANSI, API, and Norsok L005 compact flanges. This tool delivers exceptional load capacity at up to 1500 bar pressure with a compact design, twin ports for multi-tool connectivity, and a full-bridge window for easy access, making it ideal for efficient, safe bolting in oil & gas, power generation, and heavy industrial maintenance environments.

• Model: GT7LCB (Hydraulic Topside Bolt Tensioner)
• Thread Range: M100–M105 (4 in. maximum)
• Maximum Operating Pressure: 1500 bar (21,750 psi)
• Load Capacity: 3,958.4 kN (395.8 tons)
• Hydraulic Pressure Area: 26,389.4 mm² (40.9 in²)
• Stroke: 10 mm (0.39 in.)
• Minimum Socket Rotation: 60°
• Weight: 38.2 kg (84.2 lb.)
• Dimensions (in mm/in.):
  • A (Overall Height): 243 (9.6)
  • B (Body Diameter): 182 (7.2)
  • C (Piston Diameter): 89 (3.5)
  • D (Overall Length): 277 (10.9)
• Connectivity: Twin hydraulic ports for multi-tool linking; requires ultra-high-pressure fittings/hoses
• Features: Full-bridge window for easy access; quick-release bridge; visible stroke indicator; captive socket to prevent dropped parts; misalignment compensation (±5°); over-stroke relief valve; anti-slip grip
• Operator Feedback: Stroke indicator for cycle monitoring; ergonomic design for reduced fatigue
• Maintenance Features: Self-energizing seals; corrosion-resistant construction; annual inspection of seals/hoses recommended; compliant with Machine Directive 2006/42/EC, ASME B30.1, EN-ISO 4413:2010, EN-ISO 12100:2010
• Additional Features: Suitable for ANSI/API/Norsok L005 flanges; ATEX options available; load cells ordered separately from adapters/bridges for flexibility