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For the rotary drilling rigs less than 580kNm, Hengli could provide you:
• Luffing Cylinder
• Mast Cylinder (correcting cylinder)
• Pressurized Cylinder
Can be customized according to customer requirements.

Features: Control the lifting and lowering of the power head
Specification:
Bore diameter:125mm~210mm
Rod diameter:90mm~150mm
Stroke≤8500mm
Pressure: up to 35MPa

Features: Control the mast, adjust the angle of the mast and the ground
Specification:
Bore diameter:140mm~350mm
Rod diameter:90mm~230mm
Stroke≤5550mm
Pressure: up to 32MPa

Features: Control the luffing angle, adjust the distance between the mast and the host
Specification:
Bore diameter:125mm~250mm
Rod diameter:90mm~160mm
Stroke≤1640 mm
Pressure: up to 32MPa
• The use of high-strength materials, special heat treatment and welding processes ensure that the cylinder has a very high fatigue life under high pressure and heavy load.
• Mature and unique sealing and waterproof structure design, systematic theoretical analysis and FEA calculation, make the oil cylinder safe and long-term work guaranteed
• It can be designed and matched with integrated counterbalance valve, oil pipe, etc. according to requirements
• The design has a wide temperature range (-25℃~+100℃), and can provide higher or lower temperature cylinders
• Working pressure, size specifications, installation methods, etc. can be customized according to the customer needs