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Superbolt (Nord-Lock)

Marine Bolt Tensioner

Hydraulic Torque Tools · Workshop Air Tools

Technical data from manufacturer or class sources · not yet verified by a person​​​​‌‌​​‍‌​​‌⁠‍‌​‌​‍
M36-M200, up to 2000 barCapacity
Workshop / Maintenance ToolsMedium

A hydraulic bolt tensioner from Superbolt (Nord‑Lock) used in shipyards to apply precise preload to large marine engine bolts, featuring an integrated pressure gauge for torque control. As a Hydraulic Torque Tools, it is normally installed in the engine-room or deck workshop and used temporarily at machinery under maintenance. In that role, its primary purpose is to provide controlled grinding, lapping, bolting or hydraulic torque for repair work. Grinding, lapping and hydraulic torque tools have different drives and hazards, so attachments, pressure and reaction arrangements must match the specific tool. Capacity: M36-M200, up to 2000 bar. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.

Specifications

Technical data.

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TypeHydraulic Bolt Tensioner
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Critical for main engine bolt tensioning to correct values. Calibrate pump gauge annually. Replace hoses every 5 years.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

Spare parts via Superbolt (Nord-Lock) or authorised distribution partners. Lead time: 2-6 weeks.

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