Editorial Technical Reference

Surface Grinder

This page explains how Surface Grinder is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A precision machine tool used for producing smooth, flat surfaces on workpieces through abrasive grinding.

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Product Specifications

Technical details and manufacturing context for Surface Grinder

Definition
A surface grinder is a machine tool that utilizes a rotating abrasive wheel to remove material from the surface of a workpiece, achieving high levels of flatness, parallelism, and surface finish. It is essential in precision manufacturing for finishing operations on metallic and other hard materials. The machine typically consists of a horizontal spindle that holds the grinding wheel, a reciprocating worktable that moves the workpiece back and forth under the wheel, and a vertical feed mechanism that controls the depth of cut. Surface grinders are used in tool rooms, mold making, and production environments to achieve tight tolerances and smooth surfaces on components such as dies, fixtures, and machine parts. The process involves the abrasive grains on the wheel acting as cutting edges, removing tiny chips from the workpiece surface. The resulting surface quality depends on factors such as wheel grit size, spindle speed, table speed, and coolant application. Surface grinders can be manually operated or equipped with CNC controls for automated precision grinding. They are available in various sizes and configurations, including reciprocating table and rotary table designs. The materials commonly processed include cast iron, steel, and granite, among others. Key parameters to consider when selecting a surface grinder include maximum grinding length and width, wheel diameter, spindle power, table travel speed, grinding wheel speed, worktable surface flatness, grinding accuracy, surface roughness, spindle speed, coolant flow rate, machine weight, power supply, and operating temperature. These parameters are provided as reference ranges and must be verified for the specific model and application. Standards such as ISO 6103, ISO 230-1, ISO 230-2, ISO 4287, and IEC 60038 are referenced for verification purposes, but they do not imply certification or compliance of any particular product. Always confirm model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The surface grinder operates by moving a workpiece, secured to a reciprocating table, beneath a rotating grinding wheel. The wheel, composed of abrasive grains bonded together, cuts microscopic chips from the workpiece surface. The table's horizontal movement, combined with precise vertical downfeed of the wheel head, allows for controlled material removal to achieve the desired dimensional accuracy and surface texture. The grinding wheel rotates at high speed, and the workpiece is passed back and forth under it. The depth of cut is set by lowering the wheel head incrementally. Coolant is often applied to reduce heat and improve surface finish. The process can achieve flatness within microns and surface roughness values as low as Ra 0.1 µm.
Common Materials
Cast Iron, Steel, Granite
Technical Parameters
ParameterTypical rangeNotes & selection driver
Maximum Grinding LengthRequired500–2000 mmThe maximum longitudinal travel distance of the worktable, determining the longest workpiece that can be ground.
Maximum Grinding WidthRequired200–800 mmThe maximum cross travel distance, determining the widest workpiece that can be accommodated.
Wheel DiameterRequired180–500 mmThe diameter of the standard grinding wheel used on the machine.
Spindle PowerRequired1.5–15 kWThe power rating of the main spindle motor driving the grinding wheel.
Table Travel Speed1–25 m/minThe variable speed range for the reciprocating motion of the worktable.
Grinding Wheel Speed20–45 m/sExceeding max speed risks wheel burstISO 6103
Worktable Surface Flatness0.005–0.02 mm/mCritical for precision grindingISO 230-1
Grinding Accuracy (Flatness)±0.005 mmTypical tolerance for finish grindingISO 230-2
Surface RoughnessRa 0.1–0.8 µmLower Ra for finer finishISO 4287
Spindle Speed1000–3000 rpmMatched to wheel diameter and speed
Coolant Flow Rate20–100 L/minPrevents heat damage and improves finish
Machine Weight1500–8000 kgHeavier machines offer better stability
Power Supply380 ±10% V ACThree-phase, 50/60 HzIEC 60038
Operating Temperature5–40 °COutside range affects accuracy

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Base
    Provides structural support and rigidity to the entire machine, often containing the coolant system.
    Material: Cast Iron
  • Column
    Vertical structure that supports the wheel head and provides guidance for its vertical (Z-axis) movement.
    Material: Cast Iron
  • Wheel Head
    Assembly housing the spindle motor and grinding wheel, responsible for the primary cutting action and vertical feed.
    Material: Cast Iron, Steel
  • Worktable
    Precision reciprocating table that holds the workpiece via a magnetic chuck or fixture, providing longitudinal (X-axis) movement.
    Material: Cast Iron, Granite
  • Saddle Part
    Component mounted on the base that carries the worktable, providing cross (Y-axis) movement.
    Material: Cast Iron
  • Hydraulic System
    Provides power for the smooth reciprocating motion of the worktable and other automated functions.
    Material: Steel, Rubber, Hydraulic Fluid
  • Coolant System
    Circulates coolant to the grinding zone to reduce heat, flush away swarf, and improve surface finish.
    Material: Plastic, Steel
  • Grinding Wheel
    The bonded abrasive that cuts microscopic chips from the workpiece.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Surface Grinder.

Surface Grinding Machine Precision Surface Grinder Grinder

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (mechanical contact pressure only)
other spec: Surface finish tolerance: ±0.001-0.0001 mm, Table speed: 0.1-30 m/min, Wheel speed: 1500-3000 RPM
temperature: 10-40°C (operating environment)
Media Compatibility
✓ Hardened steel ✓ Cast iron ✓ Ceramics
Unsuitable: High-viscosity fluids or environments with excessive airborne particulates
Sizing Data Required
  • Maximum workpiece dimensions (L x W x H)
  • Required surface finish tolerance
  • Material hardness and removal rate requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Spindle bearing failure
Cause: Inadequate lubrication, contamination from grinding debris, or excessive preload leading to overheating and premature wear.
Wheel imbalance or fracture
Cause: Improper mounting, excessive feed rates, or using a damaged or expired grinding wheel causing vibration and potential catastrophic failure.
Maintenance Indicators
  • Unusual high-pitched whining or grinding noise from the spindle area
  • Excessive vibration or visible wobble in the grinding wheel during operation
Engineering Tips
  • Implement a strict lubrication schedule using manufacturer-specified grease/oil and maintain clean seals to prevent contamination.
  • Regularly inspect and dress grinding wheels, ensure proper mounting torque, and adhere to wheel speed/feed rate specifications.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 1986-1:2014 - Test conditions for surface grinding machines with horizontal grinding wheel spindle and reciprocating table ANSI B5.8-1972 (R2018) - Surface Grinding Machines DIN 863-1:2016-12 - Machine tools - Test conditions for surface grinding machines with horizontal grinding wheel spindle and reciprocating table - Testing of the accuracy

Quoted from the published standard.

Manufacturing Precision
  • Flatness: 0.01 mm per 1000 mm
  • Parallelism of table surface to grinding spindle axis: 0.02 mm per 1000 mm
Quality Inspection
  • Surface Finish Test using profilometer (Ra value verification)
  • Geometric Accuracy Test (straightness, squareness, parallelism measurements with laser interferometer)

Manufacturers of Surface Grinder

4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Masion Sheet Metal Fabrication
Cixi, Zhejiang, CN
Founded 2007Over 400+ staff30,000 m3
ISO 16949
Also makes: Industrial Enclosure, Coordinate Measuring Machine (CMM), Coordinate Measuring Machine and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Minghe Die Casting Company
Dongguan, Guangdong, CN
Founded 2003200 experienced engineers & support staff staff30,000m2
ISO 9001:2015 IATF16949
Also makes: Aluminum Die Casting, Zinc Die Casting, Magnesium Die Casting and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
LDTD Homogenizer
Changzhou, Jiangsu, CN
Also makes: High-Pressure Homogenizer, Poppet/Valve
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Shandong TSINFA CNC Equipment Co., Ltd.
Shandong, CN
Also makes: Hydraulic Press, Sheet Metal Guillotine Shear
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

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Frequently Asked Questions

What materials can be ground on a surface grinder?

According to the directory reference, surface grinders are commonly used on cast iron, steel, and granite. However, other hard materials may be processed depending on the machine's capabilities and wheel selection. Always consult the manufacturer for specific material compatibility.

What is the typical grinding accuracy achievable?

The reference range for grinding accuracy (flatness) is ±0.005 mm, as per ISO 230-2. This is a typical tolerance for finish grinding, but actual results depend on machine condition, setup, and operator skill. Verify with the manufacturer for your specific model.

What safety considerations are important for grinding wheel speed?

The grinding wheel speed range is 20–45 m/s, and exceeding the maximum speed risks wheel burst. Always adhere to the wheel's rated speed and the machine's specifications. Refer to ISO 6103 for safety requirements. Never operate beyond the recommended limits.

How does coolant flow affect the grinding process?

Coolant flow rate ranges from 20 to 100 L/min. Proper coolant application prevents heat damage to the workpiece and improves surface finish by flushing away chips and lubricating the cutting zone. Insufficient coolant can lead to thermal distortion and reduced accuracy.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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