Gantry surface grinder It is capable of performing mirror finishing and grinding, making it particularly well suited for precision machining in industries such as mold making, cutting tools, connector contacts, and semiconductors. Moreover, CNC‑controlled machines can simultaneously achieve high machining accuracy while processing curved surfaces—including cylindrical, external‑cylindrical, and arcuate forms—thereby enabling multifunctional capabilities comparable to those of gantry surface grinders.

　　A gantry-type surface grinder is also known as a surface grinding machine. Although it is relatively easy to operate, it can handle a wide variety of workpieces and typically requires numerous fixtures to complete the machining operations. It delivers very high precision; when equipped with digital readout, accuracy can be maintained within ±0.001 mm. The machine is capable of machining flat surfaces, right angles, inclined planes, slots, circular arcs, step differences, and more. These features can also be combined in a single setup—for example, inclined slots, stepped inclined surfaces, or inclined circular arcs—provided the workpiece is through‑going and fully accessible. It offers high machining efficiency, excellent precision, and relatively low production costs.

　　The outstanding advantages of machining on a gantry surface grinder include:

　　1. High precision and stable quality of machined parts

　　The gantry-type surface grinder boasts both high positioning accuracy and excellent repeat positioning accuracy, making it relatively easy to ensure dimensional consistency across a batch of parts. Provided that the process design and program are properly formulated and executed with meticulous care, the machine can deliver high machining precision and facilitate effective quality control throughout the manufacturing process.

　　II. High degree of automation, which can reduce the physical workload of operators.

　　 Gantry surface grinder The machining process is carried out automatically according to the input program; the operator only needs to perform initial tool setting, load and unload workpieces on the EDM machine, and change tools. During machining, the primary tasks are observing and monitoring the machine tool’s operation.

　　3. Dimensioning shall conform to the characteristics of grinding‑machine machining.

　　 Gantry surface grinder In CNC programming, the dimensions and positions of all points, lines, and surfaces are referenced to the program origin. Therefore, coordinate dimensions should be directly indicated on the part drawing, or dimensions should, whenever possible, be annotated relative to a common datum.

　　The control oil then actuates the main valve to change its direction. When the pilot valve remains in its initial position, replacing the solenoid directional valve with an electro‑hydraulic directional valve establishes a new switching method. The electro‑hydraulic directional valve comprises a pilot‑valve solenoid spool and a main‑valve hydraulically operated spool. In this system, the pilot valve switches the control oil circuit, while the flow direction of the control oil remains unchanged; the directional valve stays at its original end position, the main oil circuit retains its original direction, and the worktable can continue to advance.

　　 Gantry surface grinder It is compatible with the ideal control curve. The gantry-type surface grinder employs a hydraulic‑drive reversing system featuring electro‑hydraulic proportional valves, enabling speed reduction by actively throttling flow to achieve smooth, impact‑free direction changes. This intelligent, adaptive reversing system ensures optimal switching even under varying operating conditions. By providing precise, intelligent control over output displacement and velocity, it confers a high degree of controllability to the reversing process, thereby offering an exceptionally broad range of applications.

　　Hydraulic station for hydrostatic guideways

　　The gantry-type surface grinder employs a constant‑differential adjustable flow valve to regulate the table’s float height, ensuring that the float height remains essentially consistent across varying loads and significantly reducing the power consumption of the main hydraulic station. This system features high load capacity, reliable and stable operation, and energy efficiency and environmental friendliness.

　　Main fuel tank

　　The gantry-type surface grinder features a unique structure, with temperature rise not exceeding 15°C, eliminating the need for an additional cooling system. The system enables impact-free direction reversal, ensuring smooth switching. The main oil pump motor requires only 11 kW of power. Overall, the system offers stable and reliable operation, low noise levels, and energy efficiency while being environmentally friendly.

　　Hydraulic station for hydrostatic/hydrodynamic grinding head

　　The grinding head employs a hydrostatic–hydrodynamic journal bearing design, offering high motion accuracy, zero wear, long service life, low starting power, and, for hydrodynamic bearings, substantial load-carrying capacity at high speeds along with excellent vibration resistance. The hydraulic power unit utilizes a constant-pressure system to supply oil to the hydrostatic–hydrodynamic grinding head, delivering stable pressure, low noise, and reduced temperature rise.

　　The gantry-type surface grinder has the following features:

　　1. The gantry-type surface grinder features a gantry configuration, with the bed, twin columns, and crossbeam forming its frame structure. Both the hydrostatic guideways used for the worktable and the shock-free hydraulic system for the worktable have been granted national patents.

　　Utility Model Title: A Hydraulic System for an Energy-Saving, Cushioned Gantry Grinding Machine Worktable

　　Patent No.: ZL201821406894.4

　　Utility Model Title: A Multi-Unit Constant Flow Regulation Device

　　Patent No.: ZL201821406971.6

　　2. The crossbeam is equipped with a carriage and a grinding head. The carriage moves laterally along the crossbeam’s guide rails, while the grinding head performs vertical lifting motion along the carriage. The steel‑lined guide rails on the crossbeam cooperate with the dovetail‑type rolling guide blocks on the carriage, ensuring wear resistance and smooth, effortless movement.

　　3. The worktable’s longitudinal motion is driven by a right-side hydraulic system, offering stepless speed regulation and smooth operation.

　　4. The grinding head of the gantry-type surface grinder employs variable-frequency speed control, and its spindle is equipped with NSK precision rolling bearings or optionally features a hydrostatic/hydrodynamic bearing configuration.

　　5. Both the vertical and lateral feed motions of the grinding head are driven by AC servo systems, ensuring precise micro‑feed control of the ball screws, flexible indexed feeds, and smooth rapid feeds.

　　6. The gantry-type surface grinder features a modular design, allowing for customizable increases in machining height and length to meet customer requirements.

The product is continuously improved; the sample images and specifications are for reference only, and the contract’s technical specifications shall prevail.

The product is continuously improved; the sample images and specifications are for reference only, and the contract’s technical specifications shall prevail.

The product is continuously improved; the sample images and specifications are for reference only, and the contract’s technical specifications shall prevail.