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Szczegóły Produktu:
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| Waga: | 87 - 88 kg | Kompatybilne płyny: | Oleje mineralne (HL/HLP), Glikol wodny (HFC) |
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| Kołnierz montażowy: | ISO 3019-2 (4 śruby, metryczne) | Typ wału: | Wałek klucza równoległego (DIN 6885) |
| Prędkość nominalna: | 1500 obr./min (maks. ~1800 obr./min, wymaga dobrych warunków na wlocie) |
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Parameter Category |
Parameter |
Specification / Description |
|---|---|---|
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General Information |
Manufacturer / Model |
Rexroth, A4VSO Series (Heavy-Duty Industrial) |
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Part Number |
R910994306 |
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Pump Type |
Swashplate Axial Piston Pump (Open Circuit) |
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Hydraulic Performance |
Displacement |
125 cm³/rev |
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Nominal Pressure (Continuous) |
350 bar |
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Peak Pressure (Intermittent) |
400 bar |
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Nominal Speed |
1500 rpm (Max ~1800 rpm, requires good inlet conditions) |
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Max. Theoretical Flow @ 1800 rpm |
~225 L/min |
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Control Type |
DR - Pressure Control (Pressure Limiting) |
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Mechanical Interface |
Shaft Type |
Parallel Key Shaft (DIN 6885) |
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Rotation Direction |
Clockwise (R) (viewed from shaft end) |
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Mounting Flange |
ISO 3019-2 (4-bolt, metric) |
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Port Configuration |
PPB13: SAE flanged ports, metric screws, Series 13 interface |
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Through Drive |
N00: No through-drive (cannot mount auxiliary pump) |
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Media & Sealing |
Seal Material |
NBR (Standard for mineral oil) |
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Compatible Fluids |
Mineral Oils (HL/HLP), Water Glycol (HFC) |
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Weight |
Approx. 87 - 88 kg |
Q1: What is the main application of the A4VSO 125 size pump?
A: The A4VSO 125 is a heavy-duty industrial pump designed for high-pressure systems requiring flows up to ~225 L/min. It is commonly used in metal forming (presses), injection molding, large machine tools, and heavy lifting equipment where 350 bar continuous pressure and robust construction are required.
Q2: How does the DR pressure control work?
A: The DR control is a pressure compensator. Below the set pressure, the pump delivers maximum flow (125 cc). When system pressure reaches the set point (adjusted via a screw on the control cover), the swashplate automatically de-strokes to maintain constant pressure, delivering only the minimal flow needed to compensate for system leakage. This saves significant energy compared to a fixed pump with a relief valve.
Q3: What drive motor power is required for this pump?
A: At 1500 rpm and 350 bar, the theoretical mechanical input power is approximately 109 kW. It is strongly recommended to use a 110 kW (≈150 HP) electric motor or engine to provide a safe margin for starting torque and peak pressure (400 bar) demands.
Q4: Can I add a gear pump to the back of this unit?
A: No. The code N00 explicitly indicates no through-drive capability. The shaft does not protrude from the rear housing. If you require a charge pump or auxiliary pump, you must select a version with a through-drive suffix (e.g., K01, K02, etc.).
Q5: What are the critical suction (inlet) conditions?
A: This is a large displacement pump and requires excellent inlet conditions. At 1500 rpm, the absolute inlet pressure should be ≥ 0.8 bar (approx. -0.2 bar gauge). If running at the maximum speed of 1800 rpm, a pressurized inlet (boost pump) is mandatory to prevent severe cavitation and damage.
Osoba kontaktowa: Mr. liyun
Tel: +8615280488899
Polish
