First, product performance and use: axial piston pump is the direction of the reciprocating motion of the piston or plunger cylinder parallel to the central axis of the piston pump. The axial piston pump plunger in the change in the volume generated by the reciprocating motion of the plunger bore to work in parallel with the drive shaft. Plunger and plunger holes are circular parts, the processing can achieve a high degree of accuracy with the high volumetric efficiency and smooth operation, flow uniformity, low noise, high working pressure advantages, but the contamination of the hydraulic oil more sensitive, more complex structure, a higher cost. MCY14-1B: Quantitative piston pump SCY14-1B: the manual variable piston pump YCY14-1B: the pressure variable piston pump BCY14-1B: electro-hydraulic control piston pump PCY14-1B: constant pressure variable displacement piston pump