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A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump A4VSO250

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A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump A4VSO250

A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump A4VSO250
A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump A4VSO250

Large Image :  A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump A4VSO250

Product Details:
Place of Origin: German
Brand Name: Rexroth
Certification: ISO
Model Number: A4VSO355DFR/30L-PPB13N00
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: wooden box
Delivery Time: 2 weeks
Payment Terms: Western Union,T/T,D/P,D/A,L/C
Supply Ability: 100
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A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump A4VSO250

Description
Displacement (Vg Max)​: 355 Cm³/rev​ Peak / Maximum Pressure​: 400 Bar (40 MPa)​ Intermittent
Maximum Speed (nₘₐₓ)​: 1500 Rpm​ @ Vg Max (Size 355) Recommended Speed​: 1000 – 1500 Rpm
Recommended Oil Viscosity​: 16 – 100 Mm²/s (optimal ISO VG 46 At Operating Temp)

A4VSO355DFR/30L-PPB13N00 German Rexroth Variable Axial Piston Pump
Product Specifications
Model A4VSO355DFR/30L-PPB13N00
Brand / Origin Rexroth / Germany
Type Swashplate-type axial piston variable pump (Open circuit)
Displacement (Vg max) 355 cm³/rev
Control Type DFR – Pressure & Flow Controller: maintains constant differential pressure across an external orifice (flow control by sensing Δp) and overlays a mechanically adjustable pressure limiting function
Nominal Pressure 350 bar (35 MPa) Continuous
Peak / Maximum Pressure 400 bar (40 MPa) Intermittent
Maximum Speed (nₘₐₓ) 1500 rpm @ Vg max (Size 355)
Recommended Speed 1000 - 1500 rpm
Theoretical Flow @ 1500 rpm ≈ 533 L/min (Q = n × Vg / 1000)
Rotation Direction L – Counter‑clockwise (viewed from shaft end)
Mounting Flange ISO 3019‑2 / Series 30, 4‑bolt (Code PP)
Through‑drive Yes – PPB indicates through‑drive capable (N00 = no auxiliary pump fitted)
Port Configuration PPB13 – SAE flange side ports, pressure (B) & tank (S) ports 90° apart
Seal Material FKM (Fluoroelastomer / Viton, standard for mineral oil HLP)
Case Drain Two case drain ports – must be routed to tank < 2 bar backpressure
Recommended Oil Viscosity 16 - 100 mm²/s (optimal ISO VG 46 at operating temp)
Oil Cleanliness Requirement ISO 4406 18/16/13 (NAS 1638 Class 8-9)
Net Weight (Approx.) ≈ 207 kg (dry, excl. coupling)
Package / Condition Original factory wooden crate, new unused, German import
Salable / Supply Region Global – Available via Rexroth authorized industrial hydraulics distributors
Applicable Industries
  • Heavy injection molding / die‑casting machines
  • Metallurgy – rolling mill auxiliaries, forging press clamps
  • Mining – centralized HPUs, crusher adjusters, roof‑support test rigs
  • Oilfield – skid‑mounted well‑service HPUs, BOP test benches
  • Marine – deck machinery open‑circuit power packs
  • Industrial test benches
Rexroth A4VSO hydraulic pump product image
Model Code Breakdown

A4VSO – Axial piston variable pump, open circuit

355 – Displacement 355 cm³/rev

DFR – Pressure & Flow controller (flow held constant by Δp sensing across throttle orifice + pressure cut‑off adjustable mechanically)

30 – Design Series 30

L – Counter‑clockwise rotation (viewed from shaft end)

PPB13N00

  • PP – Through‑drive capable, ISO 4‑bolt flange
  • B13 – SAE flange side ports (P & T 90° apart)
  • N00 – No auxiliary pump / no special option on through‑drive
Frequently Asked Questions
What does DFR (Pressure & Flow Controller) do?
DFR is a composite hydraulic controller:
  • Flow Control: Maintains constant pump flow by sensing the pressure drop (Δp) across an external orifice/throttle
  • Pressure Limiting: Overlays a mechanical pressure cut‑off – when system pressure reaches the set spring value, the pump strokes down
DFR requires a pilot pressure source and a properly sized flow-control orifice in the downstream circuit.
What is the difference between DFR and DFR1?
  • DFR: Pilot oil port X is open (connected internally); standard version
  • DFR1: Pilot oil port X is plugged / without orifice – used when the load‑sensing signal is supplied externally
Verify your system's pilot plumbing before selecting DFR vs DFR1.
Can I mount a second pump on the back?
Yes. The PPB code indicates through‑drive capability. An A4VSO (same or smaller) or gear pump can be flange‑mounted on the rear. N00 = no auxiliary pump pre‑fitted, through‑drive shaft is present.
What are critical installation points?
  • Case Drain: Plumb directly to tank, backpressure ≤ 1.5-2 bar
  • Suction Line: Keep short & large‑diameter; absolute inlet pressure ≥ 0.8 bar
  • Pilot / Sensing Lines (DFR): Ensure pilot pressure is available and flow‑sensing orifice is correctly sized
  • Rotation Check: "L" = counter‑clockwise from shaft end
  • Bleed: Fill case and suction with oil, vent before first start‑up
Is a system relief valve still required with DFR?
Yes, strongly recommended. DFR provides pressure cut‑off under normal conditions but has finite response time. A system safety relief valve protects against spikes from thermal expansion or control lag.
What oil cleanliness is required?
Maintain ISO 4406 18/16/13 (NAS 1638 Class 8-9) minimum using a return‑line filter β₁₀ ≥ 200 (10 µm nominal). Contamination is the primary cause of A4VSO premature wear.
Is this the main pump for a wheel loader or excavator?
No. A4VSO is an industrial open‑circuit pump. Mobile wheel loaders/excavators typically use A4VG (closed) or A11VO (open axial) as travel/main pumps. A4VSO with DFR may be used in loader factory test benches, auxiliary stationary HPUs, or mine‑site industrial hydraulic stations.

Tag:

rexroth piston,

axial piston pump,

electric piston pump

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