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제품 상세 정보:
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| 최대. 흐름: | ~156 L/min(2200rpm에서, 이론상) | 최대. 속도: | 2200rpm(최대 변위 시) |
|---|---|---|---|
| 장착 플랜지: | ISO 3019-2 / SAE J744 2볼트 | 포트 크기: | 코드 42(SAE 플랜지 포트, UNC 스레드) |
| 최고 압력: | 350bar(간헐적) |
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Parameter |
Specification |
|---|---|
|
Manufacturer / Series |
Rexroth A10VSO Series 31 |
|
Order Code |
R902482660 |
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Full Model |
AA10VSO71DR/31R-VPA42N00 |
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Pump Type |
Axial Piston Variable Pump (Swashplate Design, Open Circuit) |
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Control Type |
DR (Pressure Control / Pressure Compensator) |
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Max. Displacement |
71 cm³/rev |
|
Nominal Pressure |
280 bar |
|
Peak Pressure |
350 bar (intermittent) |
|
Nominal Size |
NG 71 |
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Rotation Direction |
Right-hand (R, viewed from shaft end) |
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Shaft Type |
Tapered shaft 1:5 with parallel key (DIN 6885) |
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Ports |
S (Suction), B (Pressure), L (Case Drain) |
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Port Size |
Code 42 (SAE flange ports, UNC threads) |
|
Mounting Flange |
ISO 3019-2 / SAE J744 2-bolt |
|
Max. Speed |
2200 rpm (at full displacement) |
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Max. Flow |
~156 L/min (at 2200 rpm, theoretical) |
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Seal Material |
FKM (Viton) |
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Hydraulic Fluid |
Mineral oils (HL, HLP), HETG, HEES, HFDU |
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Operating Temperature |
-20°C to +80°C |
|
Weight |
Approx. 35.2 kg |
|
Country of Origin |
Germany |
Q1: What is the function of the "DR" control?
A: The DR is a Pressure Compensator. It automatically reduces the pump's displacement (destrokes) when the system pressure reaches the preset value. This maintains constant pressure while minimizing energy consumption and heat generation.
Q2: What does the "VPA42N00" suffix indicate?
A: This code defines the mechanical configuration:
V: FKM (Viton) seals for high temperature and chemical resistance.
P: Tapered shaft (1:5) with a parallel key.
A42: Port size code 42 (SAE flange ports with UNC threads).
N00: No through-drive (solid shaft end).
Q3: What is the key difference between this A10VSO71 and the previously mentioned A10VSO45?
A: The primary difference is the displacement size:
A10VSO71: 71 cm³/rev, providing higher flow output (~156 L/min vs ~117 L/min at same speed).
A10VSO45: 45 cm³/rev, smaller size for lower flow requirements.
This model uses a simpler DR pressure control, whereas the previous ones used DFR1 (pressure + load sensing).
Q4: What is the purpose of the L port?
A: The L Port (Case Drain) must be connected directly to the tank. It relieves internal leakage pressure to protect the shaft seal. Maximum allowable backpressure is typically 2 bar.
Q5: Can this pump be used in a closed-loop system?
A: No. The A10VSO DR is designed exclusively for open-circuit applications (pump → valve → actuator → tank). For closed-loop hydrostatic transmissions, you would need an A4VG or A2FM series unit.
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