Pneumatic anchor cable and back tension machine is combination of peneumatic hydraulic pump and back anchor tension jack. Jack can complete these automaticly: seize the anchor, load tension, boost and lock anchors under the drive of hydraulic pump, it is necessary during unloading tension and loosing the cable anchor. Since the main power sourse is high pressure gas, so explotion-proof function is very well. External characteristic for the vane type motors makes that the machine Just meet the demand of tension ,it has this advantage that the tension speed is fast in the earlier stage and slow in the late. Especially used in the work of releasing the prstress of the roof for coal and tunnel,solve the caving problem quickly in the goaf and wind in and out area.
2. Parameters:
Rated tensioning (KN)
450KN
Max Tension Stroke (mm)
120mm
Tension Speed (cm/min)
13.2cm/min (1 MPa time),10cm/min (1 MPa time)
Confined area of Jack (cm²)
75.6cm²
Rated oil pressure (M Pa)
63MPa
Anchor rope diameter (mm)
28.6mm
Supply gas pressure
0.5MPa
Air consumption
2.9m3/min
Weight-tension Jack (kg)
35kg
weight- peneumatic hydraulic pump (kg)
40kg
Execution standard MT/T 972
Contact Information
jining dongda mining machinery co.,ltd
Canada
laura hao
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