Rexroth Hydraulic Pump PGH4-2X/040RE11VE4 High efficiency Easy Maintenance easy to integrate low viscosity

Description:

The PGH4-2X/040RE11VE4 is a fixed displacement internal gear pump from Bosch Rexroth's “PGH” series. It features a frame size of 4, a component series of 2X, a nominal displacement of 40 cm³/rev, and a rated operating pressure of 350 bar. It is suitable for high-pressure, high-load hydraulic systems. Features a high-strength cast iron housing, fluid-dynamic supported pinion shaft, internal gearing hollow gears, axial compensation plates, and “crescent-shaped” seal segment assemblies. The axial plates and radial seal rollers automatically compensate for wear under pressure, ensuring extremely low internal leakage and improving volumetric efficiency. Dual shaft seal design (FKM + NBR) with an optional “W” seal version, compatible with HFC flame-resistant hydraulic oil.
 

Application Areas:

Plastic Processing Machinery: Injection molding machines and extruders require high-pressure, low-pulsation, long-life oil sources for their plasticizing and clamping circuits; the PGH4-2X/040RE11VE4's low noise and fatigue resistance effectively reduce overall machine noise and extend oil change intervals.
Presses and die-casting machines: In stamping, forging, and aluminum-magnesium alloy die-casting equipment, this pump is commonly used as a accumulator filling pump. The rated pressure of 350 bar enables rapid filling of high-pressure accumulators, reducing cycle times.
Metallurgy and heavy machinery: Rolling mills, continuous casting machines, and furnace dismantling machines in heavy-duty intermittent operations demand extremely high resistance to contamination and impact from the pump; the PGH series achieves dual axial and radial compensation, maintaining high efficiency even with oil cleanliness at ISO 19/17/14.
Construction machinery and special vehicles: Concrete pump trucks, tunnel boring machines, and mining dump trucks use closed-loop or load-sensing systems. The PGH4-2X/040RE11VE4 can be combined with A10VO/A4VG plunger pumps to form a dual-pump system, enabling single-pump multi-circuit oil supply and saving installation space.
Renewable energy: Wind turbine pitch control hydraulic stations require low-temperature starting performance; this pump can still start reliably at -30°C thanks to its high suction capacity, is compatible with environmentally friendly ester-based oils, and meets the 20-year maintenance-free design target for wind power.
 

Advantages:

High efficiency low energy consumption: Gap compensation technology maintains ≥94% volumetric efficiency even at low speeds (<500 min⁻¹) and low viscosity (10 mm²/s), achieving 5–8% energy savings compared to traditional external gear pumps.
Flow pulsation <2%, reducing system pressure peaks and pipeline vibration, minimizing energy loss and noise.
Extended lifespan and high reliability: Fluid dynamic bearings and fluid static support jointly bear radial/axial loads, with bearing lifespan L >10,000 hours (under 210 bar, 1,500 min⁻¹ conditions).
Ductile iron housing and hardened steel gears enhance fatigue strength by 30%; capable of withstanding 10 million pressure cycles without damage.
Quiet and environmentally friendly: Involute long-tooth meshing design with a high meshing overlap coefficient, resulting in noise levels 10–15 dB(A) lower than those of external meshing pumps of the same displacement. Complies with ISO 14001 environmental manufacturing standards, with 95% of all parts recyclable.
Modular and easy to integrate: The same base can be interchanged with end covers for displacement ranges 020/025/032/050, enabling quick replacement and upgrades.
Supports series pumps: Combination of PGH4 + PGH3 or PGH4 + A10VSO axial piston pumps, achieving dual pumps on a single shaft, saving on couplings and oil tank openings.
Multiple flange, shaft extension, and oil port options available (SAE, ISO, DIN), compatible with global standard motor interfaces.
Easy maintenance: No oil trapping, reducing temperature rise; the pump body has an integrated drain port for online flushing, extending oil life. The integrated end cover design allows gear pair inspection by removing only four bolts, with on-site maintenance time <20 minutes.

FAQ:

Q1: Wonder if you accept small orders?

A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.

Q2: Can you send products to my country?

A2: Sure, we can. If you do not have your own ship forwarder, we can help you.

Q3: What's your payment terms ?

A3: By T/T,LC AT SIGHT,100% full payment.

Q4: How long is your production lead time?

A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.

Q5: When can I get the quotation ?

A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.