What Is A Horizontal Spindle And Rotary Table CNC Surface Grinder?

A horizontal spindle and rotary table CNC surface grinder (abbreviated as horizontal spindle and rotary table grinder) is a classic, efficient, and high-precision surface grinding machine. Its unique design not only meets the precision machining needs of large quantities of flat parts, but is also widely used in key industries such as automotive, bearings, and tools. Understanding the structural features, operating principles, and advantages of this machine will help you select the appropriate grinding solution and achieve efficient, high-precision production.

I. Structural Advantages of a Horizontal Spindle and Rotary Table

The name of this grinder encompasses two core design features: a horizontal spindle and a rotary table. The horizontal spindle refers to the horizontal placement of the grinding wheel's main axis, which means the grinding wheel rotates horizontally. The rotary table is a large electromagnetic chuck that continuously rotates and securely holds the workpiece to its surface.

II. The Combination of the Horizontal Spindle and Rotary Table Provides the Machine with the Following Structural Advantages:

· Strong rigidity and stability: The CNC machine bed is typically constructed of sturdy cast iron, ensuring overall stability and reducing machining vibration.

· Continuously rotating worktable: The electromagnetic chuck and motor drive achieve constant rotation, ensuring stable machining and secure workpiece clamping.

· Vertical feed of the grinding wheel carriage: The grinding wheel carriage moves up and down along a column guide rail, enabling precise grinding depth control. It also supports intermittent lateral movement to cover the entire workpiece width.

This combination of structural designs makes the machine ideal for high-volume precision grinding, especially for flat parts.

III. Working Principle of a Horizontal Rotary Table Grinder

The operating process of a horizontal rotary table grinder is simple yet precise:

· The workpiece is secured to a horizontally rotating circular worktable by electromagnetic suction.

· The horizontal grinding wheel rotates at high speed, contacting the workpiece, while the grinding wheel carriage vertically feeds to the set depth.

· The grinding wheel carriage simultaneously performs intermittent lateral feed to ensure uniform coverage of the workpiece surface.

· The worktable rotates continuously, ensuring that every surface area of the workpiece is ground multiple times by the grinding wheel, ensuring a smooth and precise finished surface. Through continuous rotation and precise feed, horizontal rotary table grinders achieve efficient, uniform, and high-precision surface grinding.

IV. Core Advantages of Horizontal Rotary Table Grinders

Horizontal rotary table grinders offer significant advantages over traditional reciprocating surface grinders and vertical rotary table grinders:

· High Productivity

The continuous rotation of the rotary table allows operators to load and unload workpieces in the non-grinding area, enabling streamlined operation and significantly reducing machine downtime.

· Excellent Machining Accuracy and Surface Quality

The continuous rotation motion is smooth, with no reversing shock and minimal vibration, making it easy to achieve high surface accuracy and smoothness.

· Easy Operation and High Automation

Once parameters such as speed and feed rate are set, the machine can run automatically for extended periods, requiring minimal operator skill and making it suitable for automated, high-volume production.

· Suitable for Large-Scale Production

Designed specifically for high-volume manufacturing, this equipment is widely used for grinding gears, bearing rings, piston rings, friction plates, and various disc-shaped parts.

V. Comparison with Vertical Rotary Table Grinders

The biggest difference between horizontal and vertical rotary table grinders lies in the grinding wheel spindle orientation and grinding characteristics:

Features	Horizontal Rotary Table Grinder	Vertical Rotary Table Grinder
Grinding wheel spindle direction	Horizontal placement	Vertical placement
Grinding wheel type	Bowl-shaped, dish-shaped or fan-shaped grinding wheels	Large diameter cylindrical or bowl-shaped grinding wheels
Grinding contact area	Line contact or narrow surface contact, small grinding force and less heat	Large contact area, high grinding force
Processing quality	High precision and high surface finish	Lower precision and high material removal rate
Main Applications	Fine grinding and final grinding, high surface quality requirements	Rough grinding and rapid removal of excess material over large areas

Horizontal rotary table grinders are more suitable for fine grinding operations requiring high surface quality and processing accuracy, while vertical rotary table grinders are more advantageous for roughing and rapid stock removal.

VI. Typical Application Areas

Horizontal spindle rotary table grinders are widely used for high-volume flat part machining in various industries, including:

· Bearing Industry: End face grinding of bearing rings to ensure high-precision fit.

· Automotive Industry: Efficient surface grinding of key components such as piston rings, friction plates, and valve plates.

· Tool Manufacturing: High-quality grinding of the end faces of tools such as milling cutters, blades, and saw blades.

· General Machinery: Precision grinding of flat parts such as various gears, flanges, and pads.

These industries place stringent demands on machining accuracy, surface quality, and production efficiency. Horizontal spindle rotary table grinders perfectly meet these requirements, making them an important choice for companies seeking to upgrade their manufacturing.

VII. Summary

Horizontal spindle rotary table CNC surface grinder, with its unique structural design and efficient and stable operating principle, have set a new benchmark in high-precision surface grinding. Combining high rigidity, automation, and continuous operation, they serve a wide range of flat part machining applications in industries such as automotive, bearings, tool manufacturing, and general machinery. With its exceptional productivity and surface quality, horizontal spindle and rotary table grinding machines are ideal for precision manufacturing and efficient production.

*Contact us for more information on our horizontal spindle and rotary table CNC surface grinders (HRO Series), helping you upgrade your manufacturing processes.