YEOSHE V18A1 R10X V18A2 R10X Variable Displacement Piston Pump

Model Interpretation and Analysis
We can disassemble the model V18A1 R10X into several parts:
V18：
V: Usually represents' Variable displacement '.
18: Represents the displacement specification of the pump. This is the most crucial number. In the A10VSO series, "18" represents a theoretical pump displacement of approximately 18 cm ³/rev (milliliters per revolution). Theoretically, for every rotation of the pump shaft, 18 milliliters of hydraulic oil are output.
A1：
This usually represents the control method. In the A10VSO series:
A may represent "shaft drive" or some basic pump model.
1 is likely to refer to a specific pressure control or power control method. The most common "DR" control (constant voltage control) is reflected in similar codes in some models. A1 "is highly likely to correspond to the" constant pressure/pressure compensation "control mode. Under this control, when the output pressure of the pump reaches the set value, the angle of the inclined plate will automatically return to zero, and the output flow rate will be reduced to a small flow rate that only maintains leakage, achieving pressure maintenance and energy saving.
R10X：
R: Usually represents' rotation direction '. From the shaft end, R represents clockwise rotation.
10X: This is a serial number or design code. '10' is likely to refer to the '10' series framework similar to A10VSO. 'X' may be a sub version or revised code.
Main technical parameters inferred
Based on the above interpretation, the main features of this pump can be inferred as follows:
Type: Diagonal disc axial variable displacement piston pump
Displacement: 18 cm ³/rev (milliliters/rev)
Control method: High probability is constant pressure control (pressure compensation). The pump will be equipped with an adjustable pressure setting valve (usually a manually adjustable knob with a locking nut).
Rotation direction: clockwise (viewed from the shaft end)
Installation method: It is highly likely to use the same SAE standard flanges (such as SAE A2 bolts) and spline shafts (commonly 1:10 involute splines) as the Rexroth A10VSO series.
Rated pressure: The commonly used rated pressure for this type of pump is 280 bar (28 MPa), with a peak pressure of up to 350 bar.
Rated speed: usually around 1500-1800 rpm, please refer to the sample for details.

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