PGM-4X Internal meshing gear pump
The maximum working pressure of PGM-4X gear pump: 210bar (some models can be customized with higher pressure).Displacement range: 25cm3/rev to 125.3cm3/rev (for example, PGM4-4X/032RA11VU2 displacement is 32cm3/rev).Speed range: 500-3600rpm, optimize the performance of low-speed working conditions.
Parameter Description of REXROTH PGM-4X Internal Meshing Gear Pump
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Parameter Item
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PGM-4X (Typical Specs)
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Optional Configuration
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Pump Type
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Internal Meshing Gear Pump
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With integrated relief valve
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Displacement
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10-80 cm³/rev (0.61-4.88 in³/rev)
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Customizable displacement available
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Maximum Continuous Pressure
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210 bar (3045 psi)
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250 bar (3625 psi) for high-pressure version
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Maximum Intermittent Pressure
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230 bar (3335 psi)
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270 bar (3915 psi) for high-pressure version
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Maximum Peak Pressure
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250 bar (3625 psi)
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290 bar (4205 psi) for high-pressure version
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Maximum Speed
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3000 min⁻¹ (rpm)
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2800 min⁻¹ (rpm) for high-displacement models
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Minimum Speed
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250 min⁻¹ (rpm)
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200 min⁻¹ (rpm) for low-viscosity fluid
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Flow Rate (at 1500 rpm)
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15-120 L/min (approx.), depending on displacement
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Adjustable flow rate with optional flow control valve
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Rotation Direction
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Clockwise (CW) as standard; Counterclockwise (CCW) optional
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Reversible rotation available for special applications
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Shaft Type
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Straight shaft with keyway (5.0 mm key width typical)
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Tapered shaft 1:10 or splined shaft optional
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Mounting Flange
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DIN EN 1092-1 European standard (PN16)
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SAE flange or custom flange available
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Housing Material
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High-strength cast iron (HT300) with anti-corrosion coating
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Aluminum alloy housing for light-duty applications
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Fluid Requirement
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Mineral oil-based hydraulic fluids (ISO VG 32-68); viscosity range 10-200 mm²/s (cst)
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Fire-resistant fluids (HFD-R) compatible optional
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Contamination Class
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ISO 4406:1999 Class 18/16/13
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Class 17/15/12 for high-precision systems
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Inlet Pressure Range
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0.5-4 bar (abs.) (7.25-58 psi); max continuous inlet pressure 6 bar (87 psi)
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0.3-5 bar (abs.) for self-priming enhanced version
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Approximate Weight
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11.5-14.8 kg (typical), depending on displacement
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10.2-13.5 kg for aluminum alloy housing
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General Notes
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All pressure values are for unidirectional pumps; for reversible pumps, the maximum pressures are 15% lower than the values listed above. Pressure units follow international general standards, and 1 bar is equivalent to approximately 14.5 psi for easy conversion and application.
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The internal meshing structure of the PGM-4X pump ensures low noise (≤65 dB(A) at 1500 rpm) and high volumetric efficiency (≥95%), which can effectively reduce energy consumption and extend the service life of the hydraulic system. Its compact design allows for flexible integration in limited installation space.
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Mounting flanges, shafts and ports can be customized according to SAE, DIN EN or ISO standards to meet specific application needs. Inlet and outlet ports are available in threaded type or flange type as standard, with optional different sizes to match pipeline specifications.
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It is recommended to use REXROTH original filters to maintain the required contamination class and extend the pump’s service life. The pump’s service life can be further prolonged by ensuring proper fluid temperature (operating temperature range: -20℃ to 80℃) and viscosity control, with the recommended viscosity range consistent with common hydraulic system requirements.
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The rotation direction is determined by viewing the drive shaft; counterclockwise (CCW) rotation or reversible rotation can be customized according to customer requirements, and the pump has excellent self-priming capability, suitable for applications with long suction pipelines.
Process steps：
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.
