AP2D25

Characteristics of the Uchida AP2D25 hydraulic pump

The Uchida AP2D25 hydraulic pump is a powerful dual (tandem) axial piston pump with variable displacement, which is the heart of the hydraulic system in midi excavators and other mobile equipment. Its design combines two independent pumps in one robust housing, which allows you to simultaneously power multiple hydraulic circuits, ensuring high performance and smooth operation. Thanks to the built-in power control system, the AP2D25 pump optimizes the load on the engine, which contributes to fuel economy and increases the overall reliability of the machine.

Technical characteristics of the Uchida AP2D25 hydraulic pump:

• Type: Axial piston pump, double (tandem), with variable displacement.
• Design: Swash plate pump. Usually equipped with a third gear pump for the control circuits (pilot line).
• Displacement (piston part): 2 x 25 cm³/rev:
• Nominal working pressure: 24.5 MPa (250 kgf/cm² or 245 bar)
• Maximum pressure: up to 29.4 MPa (300 bar):
• Maximum rotation speed: ~2200 - 2400 rpm
• Performance (Flow): 2 x ~55-60 l/min:
• Direction of rotation: Right (clockwise)
• Weight: Approximately 55 - 60 kg
• Application: Main hydraulic pump for 5-7 ton midi excavators

Hydraulic pump cross number: K1027212A, K9006296, 4663300, 2401-9231, 2401-9286, 400910-00091, VOE14518004, VOE14526311, VOE14528547, 31M8-15020, 31M8-15010, 31M8-15021

Hydraulic pump models: AP2D25LV1RS7

Installed in the model:

• HITACHI EX35, ZX60, ZX75U
• HYUNDAI R55-9 & R55-7K, R555-7K, R60-5, R55W-7, R55W-7A, R55W-9.
• Doosan S55, DX55W, DH55, DH60-7.
• Sumitomo SH55, SH60-2, SH65.
• Airman AX35
• KOBELCO SK035
• KOMATSU PC45
• VOLVO EC55, EC60, EW55B.
• CAT E305

The company "Aspect Plus" offers a wide range of spare parts for repairing the Uchida AP2D25 hydraulic pump.