Overview
The hydraulic jack tension machine for prestressing is composed of tensioning jacks, electric hydraulic pumps, high-pressure hoses, anchors, etc. According to pretensioned prestressing method, this machine is mainly used for tensioning steel wires, steel strands for the making small and medium-sized prefabricated components such as precast hollow core slabs,wall panels,beams,columns etc.
Operational process
During operation, one end of the steel bar/wires is anchored, and the other end is tensioned by the tensioner through the clamp. When the feed-through tensioner is working, the steel bar is penetrated, the front oil nozzle is opened, and the high pressure oil is sent into the rear oil nozzle by the hydraulic pump, so that the tension cylinder is retreated, and the steel bar is anchored and tensioned by the tail anchorage. After tensioning to the desired stress value, close the rear grease nipple. The front oil nozzle enters the oil, the piston pushes forward, and the anchor plug is pressed to anchor the steel bar. When returning, the piston is reset by the spring to complete the tension.
The main technical parameters
- Applicable size of steel wires and strands:3-15mm
- Tension force:50-270KN
- Pulling Stroke：150-1200mm
Note:Different models of hydraulic pretressing tension machine have different machine parameters, please contact for details
Features and Benefits
The hydraulic prestressing tension machine is compact in structure, easy to use, light in weight, easy to move, and easy to operate. The ultra-high pressure main engine pump station is designed for high and low pressure two-stage design, and the stroke speed of the press clamp is adjustable, which can be flexibly used in various complex environments.
