Manufacturer of Hydraulic Bolting Solutions QMP2004 - Pneumatic Pump for Bolt Tensioner *Use compressed air as the power source, applicable to coal mine etc, with advantages of anti-explosion, safety, no heat and long time working. *High performance pneumatic reversing valve, safe and reliable, stable performance. *Al-Ti alloy pump body, light weight, easy to carry. *4-70MPa adjustable pressure. *Use 4-8 bar air pressure. *It can be customized as requested. *The pressure can be released after pressing the button when the pump stops working. *Steel frame can protect the pump body and makes it easy to carry. *Aluminium explosion-proof handle, solid and reliable. Technical parameters Gas source Model Rated power(kw)