Denison M8 Gold Cup Motor Parker M8 Hydrostatic Transmission Motors

Denison M8 gold cup hydraulic motor (M8F, M8G) for rotary drilling rigs. 131.1 cc/rev, 350 bar, 5000 psi peak, 2700-3000 rpm hydraulic motors

Brand: Parker

Series family: Parker Denison

Product type: Hydraulic motor

Model/series: Gold Cup

Source category: Gold Cup Motor

Product Parameters

Denison M8 Gold Cup Motor Parker M8 Hydrostatic Transmission Motors SERIES : Gold Cup Motor Series Denison M8 Gold Cup Motor Parker M8 Hydrostatic Transmission Motors

Product Details

Denison M8 Gold Cup Motor: Rotary Drilling Rig Hydraulic Power For rotary drilling rigs operating on bridge foundations or high-rise pile caps, the hydraulic motor driving the rotary head must balance torque, speed, and durability. The Denison M8 gold cup motor —specifically the M8F and M8G variants—offers a displacement of 131.1 cm³/rev, continuous pressure of 350 bar, intermittent peaks of 5000 psi, and a full-stroke speed range of 2700–3000 rpm. This makes the Denison M8 hydraulic motor an ideal match for medium-to-large rotary drilling rigs from Atlas Copco, Sandvik, and Epiroc. 📊 Denison M8 – Technical Data Sheet Parameter Value Model Variants M8F, M8G Max. Displacement 131.1 cm³/rev Continuous Pressure 350 bar Intermittent Pressure 5000 psi Speed @ Full Stroke 2700 – 3000 rpm Warranty 12 months Remote Video Support Yes (factory engineers) Free Parts Replacement Within warranty period Technical PDF www.baolilai-pump.com/contact_us/ ⚙️ Why the M8 Suits Rotary Drilling Rigs Optimized Displacement (131.1 cc/rev) Rotary drilling requires sustained torque to turn large-diameter augers through clay, sand, and soft rock. The M8’s displacement is larger than the M7 but smaller than the M14, providing the “sweet spot” for rigs with 150–250 kW engines. It delivers enough flow (approx. 350–400 L/min at 3000 rpm) without over-speeding the rotary head. Pressure Resilience (350 bar continuous / 5000 psi spikes) When the auger teeth encounter cobbles or rebar, torque demand spikes. The M8’s gold cup rotating group—with floating valve plates and hardened piston shoes—absorbs these shocks without internal leakage. This prevents the motor from stalling and protects the planetary gearbox downstream. Built for Extreme Environments Anti-explosion: Spark-resistant internals and sealed housings meet ATEX/MSHA standards, safe for drilling near gas pockets or coal seams. Contamination defense: Double shaft seals keep abrasive drill cuttings, bentonite slurry, and groundwater out. The M8G (gear-mount) variant adds an extra barrier for belt-driven applications. Thermal range: –30°C to 110°C, ensuring reliable starts in winter and cool operation in summer. 🚜 Applications Across Drilling & Heavy Machinery Atlas Copco Rotary Drills On legacy Atlas Copco rigs (now Epiroc), the M8F (flange mount) powers the rotary head’s planetary drive. Its 2700–3000 rpm range matches the optimal speed for dry auger drilling in cohesive soils. Sandvik Production Drills Sandvik’s DPi series top-hammer drills use the M8G for the carousel rod changer, where the motor must index heavy drill steels precisely. The 5000 psi intermittent rating handles the shock when rods lock into position. (OEM info: sandvik.com ) Epiroc Surface Rigs Epiroc’s SmartROC series employs the M8 for the feed system’s winch drive. The motor’s compact size and 350 bar pressure allow a slim profile, saving space on the drill deck. (Manuals: ) Beyond Mining – Agriculture, Construction, Engineering Agricultural: Large self-propelled windrowers use the M8G to drive conditioning rolls, handling intermittent crop jams without stalling. Construction: Pile drivers and diaphragm wall grabs rely on the M8’s consistent torque for deep foundation work. Engineering vehicles: Tunnel boring machines (TBMs) use M8 motors for segment erector rotation. 🛡️ What You Get – Support & Durability 1. 12-month warranty – covers all manufacturing defects (piston/cylinder galling, valve plate erosion, sea

Additional technical details are available on request.