REXROTH A10VO Series A10VO100 Axial Piston Variable Pump

描述

REXROTH A10VO Series A10VO100 Axial Piston Variable Pump

REXROTH A10VO100 Axial Piston Variable Pump: Quick Selection Guide – AA vs. ALA vs. APA

All variants of the REXROTH A10VO100 Axial Piston Variable Pump share common features: through-drive capability, 280 bar nominal / 350 bar peak pressure, and DR/DFR/DRS/LR controls. However, the suffix (AA / ALA / APA) determines real-world durability and response—misselection is the #1 cause of premature field failure.

AA10VO100 – Standard Industrial

• Best for: Steady, continuous operation at 800–2800 RPM, controlled oil temperature (40–60°C), clean environments (presses, test benches, conveyors).

• Limitation: Below 800 RPM, slipper lift-off occurs, leading to early swashplate wear.

• Choose when: Cost-sensitive, stable duty cycle.

ALA10VO100 – Low-Speed / Long-Life (“L” = Reinforced)

• Best for: Sustained operation at 300–500 RPM – crane traverses, wind turbine yaw, positioning drives.

• Upgrade: Enhanced spring pack + bearings maintain shoe-to-swashplate contact at low speeds, preventing metal-on-metal wear.

• Trade-off: ~1–2% efficiency loss above 2000 RPM; ~25% higher cost than AA.

• Choose when: Average operating speed is below 600 RPM.

APA10VO100 – High-Dynamic / High-Pressure (“PA” = Performance-Accelerated)

• Best for: Fast-cycling applications – injection moulding, die-casting – requiring <50 ms pressure build-up/release.

• Upgrade: Cavitation-resistant valve plate material + sharp-edged compensator spool enables pressure rise rates >600 bar/s.

• Trade-off: Slightly higher case drain flow (+2 L/min); through-shaft torque capacity reduced by 15%.

• Choose when: Cycle time <5 seconds, or pressure overshoot is critical.

At-a-Glance Comparison

Selection Traps – One-Line Rules

• AA on sustained low-speed duty → slipper wear (use ALA instead).

• APA on static hold-pressure applications → compensator hunting (use AA instead).

• When mounting a secondary pump, always verify through-shaft torque limits for APA variants.

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