The hydraulic industry occupies a very important position in industrial manufacturing. Hydraulic systems are widely used in mechanical equipment to transfer and control energy. The following is a detailed description of three typical machining cases in the hydraulic industry:
1.Hydraulic piston pump - piston
Hydraulic piston pump is a common high-pressure pump, widely used in construction machinery, mining machinery and other fields. The piston is the core component of the hydraulic piston pump, and its machining quality has a direct impact on the performance of the pump. The machining of the plunger piston mainly includes high-precision cylindrical grinding, internal hole machining and surface treatment.
Moresuperhard Centerless grinding machine
Complete Piston Plunge Grinding
Complete valve and ball grinding in one operation
Cylindrical or conical valve body
Tolerance of the diameter: 5μm
Cylindricity: 3μm
Surface roughness< 0.2 μm
Guarantees long-term accuracy and stability
Dressing devices run with linear motors
Diamond roller for dressing electro-spindle
Simultaneous dressing of both wheels possible
High-speed Grinding Solution With Moresuperhard Centreless Grinding Machine and CBN Grinding Wheels
CBN wheel line speed 120m/s, conventional grinding wheel 80m/s
Superfinish machining
For Cylinder vale body of piston
Surface roughness < 0.08 um
Integrated superfinishing solutions that do not extend machine cycle time
2. hydraulic Control Valve
Hydraulic control valve is the core component in the hydraulic system, responsible for regulating the flow, pressure and direction of the hydraulic fluid. The key components of the control valve include spool and sleeve, and their machining quality directly affects the valve's sealing and action sensitivity.
Plunge centerless grinding of hydraulic control valve spool
Plunge centerless grinding of Spool valve
Tolerance of the diameter: 3μm
Cylindricity: 3μm
Roundness:1μm
Surface roughness:< 1 µm
Offline measurement solutions with automatic feedback with size compensation
Minimum machine setup time
Through Centerless Grinding of Hydraulic Valve Sleeve
Straightness : 1μm
Roundness:1μm
Surface roughness:< 0.15 µm
Offline measurement solutions with automatic feedback with size compensation
3.External Grinding of Hydraulic
Hydraulic cylindrical grinding is widely used in the processing of various types of cylindrical parts in the hydraulic system, such as plungers, piston rods and valve cores. Cylindrical grinding is a high-precision machining process used to process the cylindrical surface of parts to ensure their dimensional accuracy and surface finish.
plunger pump
Tolerance of the diameter: 30μm
Roundness:4μm
Straightness : 2μm
Surface roughness:Rz Max<1 um(Rmr 0.3>85%)
Grinding line speed up to 140 m/s
Direct drive B-axis and multi-wheel applications can realize versatility
Automatic production, CNC control，loading and unloading time 2-6s
Summary of Processing Case for Hydraulic Industry:
Processing in the hydraulic industry has extremely high requirements for precision and surface quality, especially in the processing of key components such as pistons and valves, where any small error may affect the performance of the entire system. The high quality and reliability of hydraulic system parts can be ensured through advanced grinding technology, precision machine tool machining and surface treatment processes.
