What is a stall type hydraulic pulse pneumatic tool?
An oil hydraulic wrench, as the name suggests, is an impact wrench that uses hydraulic oil to drive a blow shaft to produce torque.Hydraulic pulse wrench: use the size of the oil flow to control the torque output size. When the preset torque value is reached, the hydraulic cylinder will continue to pulse, but will not increase torque output, so as to achieve effective torque control. The accuracy is about 10%.
Stall type hydraulic pulse wrench is different from the percussive start wrench, percussive pneumatic wrench, pneumatic motor driven hammer strike block rotation, easy to cause harm to the bolts, the torque fluctuation is relatively large, but not easy to set twisting speed.The stall type wrench is relatively accurate through constant rotation and constant torque.
Traditional pneumatic wrench: use the air pressure to adjust the torque. When the screws are tightened, the tools continue to act, causing the main parts to deform and damage. Because of the torque limit, accuracy is not high, around 50%.1. hydraulic machinery in a short time to set torque, torque distribution value is relatively small, so skilled operation is not required2. rotating torque adjusting bolt can easily change torque3., positive reversal, easy to operate, can be operated by hand4. double chamber motor by comparing with the traditional models about more than 30% lighter5. the main shaft does not have the striking position, therefore the vibration and the noise are smaller6. use a special blade, so you can use it without oiling.
