Tensioning & Torquing

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Hydra-Capsule Limited has designed and manufactured hydraulic jacks and hydraulic pumps to accommodate for pre-stressing and post-tensioning equipment within the civil and construction industry.

Our range consist of two types of models; single-acting (spring return) and double-acting (hydraulic powered return) and load capacity to meet all requirements. Our systems can accommodate strand, threaded bar and anchor bolts.

The preferred and most accurate way to pre-stress is to use a hydraulic jack which couples directly to the end of the tendon / anchor with a pull rod assembly. The jack frame typically bears against the steel plate while the hydraulic ram transfers a direct tension load to the application.

When the pre-stress load is achieved, using Hydra Capsule’s digital pressurising equipment, the anchor nut and/or tendon wedges can be manually saeted to the pre-determined load, the jack is then released. The anchor nut / seated wedge prevents the steel / tendon from relaxing back to its original length, therefore, the anchor has been pre-stressed. Once the anchor is put into service, additional elongation only occurs if the applied load exceeds the pre-stress load.

Advantages of Bolting Tools:

Universal and multi-use tool –can be use manual, electric and/or hydraulic systems
Correct bolting loads are achieved, recorded and calibrated accurately. Wind turbine bolt stressing Pipe flange Torque Pre-loading Operations
Hydraulic Jacks capacities from 25 tonnes upto 300 tonnes from 10mm to 15mm stroke
Cylinders can be used single, groups to synchronised preloading and stressing systems –manual, semi and fully automated facilities
Range of monitoring services from real-time to remote access can be included into all systems set-ups – ie. Load washers and trigger limits and alarms
Our expertise range from Construction Site, Steelwork Installation, Railways, Highways and major superstructures throughout the UK and Europe
All cylinders are LOLER tested and UKAS traceable

Welcome to Hydra Capsule Contract Service - Hire - Sales

Tensioning & Torquing

Advantages of Bolting Tools:

Welcome to Hydra Capsule
Contract Service - Hire - Sales