Replacement Parker Denison Hydraulic Motor M7M4N1D00M0
4 week ago
Product details
Replacement Parker Denison Gold Cup Variable Hydraulic Motor M7M4N1D00M0 (abbreviated M7M4N1D), for mining rock drills
1. Product Overview
This interchangeable replacement unit matches the original Parker Denison Gold Cup series variable hydraulic motor, full part number M7M4N1D00M0 (shortened to M7M4N1D). Designed as a core power component for heavy mining hydraulic systems, it is primarily fitted on rock drills and other quarry/mining machinery. It replicates the original mounting dimensions, variable displacement logic and load endurance of the OEM Gold Cup motor, enabling direct drop-in replacement without modifying hydraulic piping or drill structure. It serves two mainstream demands: spare part maintenance for in-service rock drills and cost-effective retrofitting of mining equipment fleets.
2. Key Technical Specifications
Parameter Details
Full OEM Model M7M4N1D00M0 (short form M7M4N1D)
Product Line Parker Denison Gold Cup variable hydraulic motor
Typical Application Hydraulic drive for mining rock drills
Structure Axial piston variable displacement motor
Control Mode Standard variable regulating structure consistent with original Gold Cup specs
Max Working Pressure Up to 35 MPa for heavy rock-drilling impact loads
Working Speed Range Adaptable to high-frequency reciprocating & rotary drilling operation
Surface Treatment Wear-resistant anti-corrosion finish for dusty mining sites
Seal Grade Heavy-duty mineral-oil compatible seals, optional dustproof outer seals
Compatible Fluid ISO VG46 anti-wear hydraulic oil for mining machinery
Ambient Adaptability Stable performance under high dust, vibration and large load fluctuation
3. Working Principle
Pressurized oil from the rock drill’s main hydraulic station enters the motor cavity. Its variable displacement mechanism adjusts the motor displacement dynamically based on drilling resistance: large displacement outputs high torque for hard rock penetration, while small displacement raises rotational speed for fast idle positioning. The output shaft drives the drill rod to rotate; internal buffer structures absorb periodic impact vibration during rock breaking, stabilizing pressure inside the entire hydraulic system and protecting upstream pumps and valves from shock damage.
4. Core Advantages
1. Fully consistent interface size and variable control logic with the original M7M4N1D00M0 Gold Cup motor, no extra alteration needed during replacement.
2. Reinforced friction pairs and heavy-duty seals resist dust abrasion and continuous vibration in harsh mining environments, lowering frequent breakdown risks.
3. Adaptive variable torque/speed output fits alternating hard-rock drilling and idle travel cycles of rock drills well.
4. Lower procurement cost than genuine Parker Denison units with stable supply, ideal for batch maintenance of multiple drilling rigs.
5. Simple on-site disassembly and assembly shortens downtime of mining operations.
5. Application Scope
Exclusively for maintenance and part replacement of hydraulic rock drills in open-pit mines, underground quarries and tunnel excavation projects; also compatible with other medium-heavy mining machinery adopting the Gold Cup M7M4N1D00M0 variable motor as the drive core.
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