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High Precision Surface Grinder Machine

The High Precision Surface Grinder Machine is engineered for ultra-accurate flat surface processing. It uses a high-speed grinding wheel to remove material and achieve exceptional surface finish and dimensional accuracy.

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Product Introduction

Introduction

Technical Parameters

Model		MX-30100AHR/AHD/NC2
Table Size (WxL)		305x1003mm
Max. Longitudinal Travel		1030mm
Cross Tranal		340mm
Max. Distance From Spindle Center To Table		540mm
Magnetic Chuck Size		300x1000mm
Speed of Table Longitudinal Movement		7~23m/min
Table Transverse Movement	Auto Feed	0.1~8mm/min
	Rapid Speed	990mm/min
	Feed of Handwheel	0.02mm/div.
Wheelhead Vertical Movement	Auto Feed	-(H/R mode)0.005/0.01/0.02/0.03/0.04/0.05(Only for D model) (mm/stroke)
	Rapid Speed	-(H mode)610(Only for R model) 480 (Only for D model) (mm/min)
	Feed of Handwheel	0.005mm/div.
Grinding Wheel	Speed	50Hz 1440rpm 60Hz 1750rpm
	(ODxWxID)Size	φ350x40xφ127mm
Spindle Motor		5.5kw
Hydraulic Motor		2.2kw
Cooling Pump Motor		0.09kw
Elevating Motor		-(H mode) 0.25kw(R mode) 0.75kw (D mode, servo motor)
Cross Feed Motor		0.04kw
Max Loading Capacity of Table (Include Magnetic Chuck)		400kg
Total Rated Power		9kw
Height of Machine		1890mm
Floor Space (LxW)		4400x2200mm
Gross Weight		3200kg
Packing Size (LxWxH)		2960x2210*2220mm

Features

Ultra-high positioning accuracy
Through precision guideways and a stable transmission system, positioning accuracy can reach ±0.001 mm (1 μm). This level of control ensures consistent surface flatness and dimensional stability across the entire workpiece.

Excellent surface finish
Under appropriate grinding conditions, surface roughness can reach Ra 0.1–0.4 μm.

Precision spindle system
Equipped with P4 grade bearings or a hydrostatic spindle, runout is controlled within ≤2 μm. This ensures stable rotation and consistent grinding performance.

Batch Consistency Performance

Condition	Result
Continuous Operation	8–10 hours
Repeatability	≤ 0.002 mm
Accuracy Drift	≤ 2 μm

Grinding Process Control

Multi-Stage Grinding Cycle
The machine supports a programmable multi-stage grinding process, including rough grinding, fine grinding, and spark-out.

Rough Grinding for Efficient Material Removal
This stage removes most of the excess material with a higher feed rate.

Fine Grinding for Dimensional Accuracy
Fine grinding is executed with micron-level feed control. It ensures final dimensions are within tolerance and improves flatness consistency across the workpiece surface.

Spark-Out for Surface Stabilization
During spark-out, the grinding wheel continues rotating without additional feed. This process eliminates residual stress and micro-deformation, improving final surface quality and stability.

FAQ

Q: How do you guarantee sub-micron surface finishes (Ra < 0.1μm)?

A: Achieving a mirror finish depends on the spindle and the guideways. We use P4-grade precision angular contact bearings with a spindle runout of ≤0.002mm. Combined with hand-scraped Turcite-B guideways, this eliminates vibration and "stick-slip" motion, allowing for ultra-smooth table travel and superior surface integrity.

Q: How does the machine handle thermal expansion during 24/7 continuous operation?

A: Thermal drift is the leading cause of scrapped parts. Our high-precision models feature an independent hydraulic station located outside the machine base. This prevents the heat from the hydraulic oil from transferring to the casting, maintaining a stable thermal equilibrium for consistent accuracy from the first part to the last.

Q: What is the minimum feed increment, and how repeatable is it?

A: For precision grinding, we offer a minimum vertical feed resolution of 0.001mm (1 micron). By utilizing high-precision lead screws and AC servo motors (on automated models), we ensure a repetitive positioning accuracy of ±0.002mm, which is critical for high-tolerance mold-making.

Q: Can this machine handle high-hardness materials like Tungsten Carbide or Hardened D2 Steel?

A: Yes. The high static and dynamic stiffness of the Meehanite base provides the necessary dampening to grind materials with hardness exceeding 60 HRC. When paired with the correct diamond or CBN wheels, the machine maintains stable RPM and feed rates without chatter marks.

Q: What are the requirements for daily maintenance and lubrication?

A: The machine is equipped with a computerized automatic lubrication system. It monitors oil pressure and delivers a metered film to the guideways and lead screws. If the oil level is low or pressure fails, the machine triggers an automatic alarm/stop to prevent expensive damage to the scraped ways.

Q: How is the machine protected against the corrosive effects of grinding coolants and dust?

A: We use telescopic steel covers on the cross-feed ways and a labyrinth seal design on the spindle. All electrical cabinets are IP54 rated and heat-exchanged to prevent fine metallic grinding dust from causing short circuits.

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