Features bolt tensioners

Bolt tension elongated bolt directly using pure tension, shear and lateral force without twisting, to join the contact surface without friction damage, it is the best way to precisely control bolt preload. Than is responsive, accurate, no torsional stress, no friction damage, can synchronize multiple bolt preload hydraulic torque wrenches, bolt tensioners advantages; therefore bolt tension preload in more stringent requirements for the occasion applied more widely. The disadvantage is the need to have sufficient elongation, and thus narrow axial space is very limited occasions.

Role of hydraulic bolt tensioners

Hydraulic bolt tension referred hydraulic tensioners, the role of its dynamic components of the original motivation of the mechanical energy is converted into fluid pressure energy, it refers to the hydraulic system of pumps, hydraulic bolt tensioners to provide power to the mechanical energy of a fluid hydraulic pumps transformation. Acting hydraulic bolt tension power components of the original motivation of the mechanical energy is converted into fluid pressure energy, it refers to the hydraulic system of pumps, which provides power to the entire hydraulic system.

Torque wrenches required verification or calibration it

All professional measuring tools in factories and enterprises, including torque tools, before use to measure local hospital for testing, if the local metrology department without qualification, it is necessary to specify other cities to detect this type of torque tools, especially in the machinery manufacturing and automobile manufacturing as an important actor, and this tool is to be conducted annually detection. Torque wrench calibration in two ways:
1. Please seller before buying tool to help you detect, will cost added to the inside
2. alone detection

Hydraulic Torque Wrench Calibrators

Control flange flatness and introversion degree

flange alignment tools used by the positioning device and the locking device consisting of a flange alignment to determine the positioning hole, flange heating has the following three
1. flange with flame varus correction using a linear heating methods. About the width of the linear heating should not be too large, and generally plate thickness of 0.5 to 2 times the depth of the heating plate is 1/2 to 2/3 plate thickness
2. Flame straightening barrel distortion and flange generally use dot heating manner during deformation. Spot focus point is heated at a heating, roasted torch circular motion, so as not to exceed the maximum temperature
3. Generally triangular linear heating and heating with a flame straightening  T type flange flatness

Instructions on the use of the electromagnetic valve electric pumps

A. in the use of the electromagnetic valve electric pumps, first of all, according to the requirement of the measurement of workpiece, selecting moderate range torque wrench, torque values measured is less than twenty percent of the torsion device in use range, should not be too great A range for small torsion part of reinforcement, small range of torsion is less can outrange that;

B. when using hydraulic flange spreader, wrench square tenon connection first good auxiliary accessories (e.g., sleeve, all kinds of batch of mouth), ensure that the connection has no problem. Before strengthening torsion, set need reinforcement force value, and lock the lock device, adjust direction switch knob to the strength of the direction, then when use fast for 5 to 6 times in a row, first make a wrench on the internal components special lubricant can sufficient lubrication, make more accurate torque wrench, durable use.

The characteristics of hollow hydraulic wrench

Hollow hydraulic wrench hydraulic torque wrench force in a series, it has its own unique characteristics
1. The use of ultra-high-strength light metal, thin design, double-acting, high-speed, large angle
2. Snap-in, interchangeable plug-in, without special tools, torque repeatability up to ± 3%
3. The full range of rotary hose connectors, suitable for compact occasions convenient positioning
4. wrench full member strength design, the overall reaction arm, fewer moving parts, durable, reliable
5. scalable metric, British hex plug and socket, a power head can be realized simultaneously with multiple plug-ins