AP2D21

Characteristics of the Uchida AP2D21 hydraulic pump

The Uchida AP2D21 hydraulic pump is a powerful dual (tandem) axial piston pump with variable displacement, which acts as the main power unit in the hydraulic systems of mini excavators and other mobile equipment. Its design combines two independent pumps in one housing, ensuring high performance and the ability to simultaneously perform several operations without loss of power. Thanks to its reliable design and control system, the AP2D21 pump effectively uses engine power, ensuring stable operation and durability of the entire hydraulic system.

Technical characteristics of the Uchida AP2D21 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 21 cm³/rev:
• Nominal working pressure: 22.6 MPa (230 kgf/cm² or 226 bar):
• Maximum pressure: up to 27.5 MPa (280 bar):
• Maximum rotation speed: ~2200 - 2400 rpm
• Performance (Flow): 2 x ~46-50 l/min:
• Direction of rotation: Right (clockwise):
• Weight: Approximately 45 - 50 kg
• Application: Main hydraulic pump for mini excavators weighing 4-6 tons.

Hydraulic pump cross number: 17811-32, LV1RS6-9780

Hydraulic pump models: AP2D21LV-1RS6-463, AP2D21LV1RS6-996, AP2D21LV1RS6-974, AP2D21LV1RJ6, AP2D21LV1RS6

Installed in the model:

The company "Aspect Plus" offers a wide range of spare parts for the repair of the Uchida AP2D21 hydraulic pump.