Cylindrical Grinder

CNC cylindrical grinding is a CNC-controlled precision machining process that removes material using a grinding wheel. It primarily processes axisymmetric workpieces. Compared to other machining methods, it is more suitable for industries requiring the highest surface finish.

OTURN offers a variety of CNC cylindrical grinding machines for your project: standard, general-purpose, and fully automatic. These machines can be dedicated to specific cylindrical grinding or customized to use other tools to support different processing ways, so that your projects will be larger.

Each component of our machines is meticulously designed. Our grinding wheel spindles are precision-machined from a high-hardness alloy through tempering and other processes, ensuring long-term wear resistance and high precision. The machine also features an automatic oil bath lubrication system, so you can watch the oil level at all times through the CNC system, extending component life and making accuracy higher.

Choosing an OTURN CNC cylindrical grinding machine means you’re choosing the most cost-effective solution for component machining. Contact us today to receive your newest quote. We will provide you with a wholesale price or discount for your first order.

All OTURN CNC cylindrical grinding machines utilize imported CNC control panels and an intelligent, efficient CAM system for rapid tool path generation. Even if the machine is temporarily shut down, the tool and worktable status can be maintained, so the next time can immediately restart without reprogramming. If you need to change tools or workpieces, you can simply adjust the CAM program, reducing manual operation. The ergonomically designed CNC panel height ensures comfortable operation. Unexpected machine downtime or component damage can also be quickly identified through the CAM program, significantly improving production speed.

As an OEM manufacturer specializing in metal processing for over a decade, OTURN is committed to providing customers with comprehensive solutions from zero to one. Whether you’re machining parts for your customers or producing your brand, our high-quality CNC cylindrical grinders are a perfect fit. Our one-stop service has earned us 100% positive feedback from our customers, establishing long-term partnerships with many of them. We have specialized business solutions according to specific regions, ensuring you don’t have to worry about our services being incompatible with your market.

Aviation

Used for high-precision surface treatment of important parts, just like aircraft engine rotors, bearing raceways, and guides, ensuring part reliability and bonding performance.

Automotive

Precision machining of engine crankshafts, camshafts, transmission gear shafts, and electric vehicle motor shafts improves assembly precision and their stability.

Precision Machinery and Bearing Manufacturing

Precision grinding of important parts, just like bearing inner and outer rings, rollers, and balls, ensures high-speed operation stability and service life.

Energy and Large Machinery Components

Machining of long cylindrical components such as wind turbine main shafts, ship propulsion shafts, and construction machinery drums, achieving strict concentricity and roundness control.

Electronics and Semiconductor Equipment

High-precision drive shafts and lens barrel support shafts, among other micron-level parts, realize the stringent tolerance requirements of optical and precision equipment.

Mold and Tool Manufacturing

Used for detailed grinding of milling dies or stamping die cores, improving die life and forming accuracy.

Machine Tools

raising accuracy and rigidity for machine tool spindles, precision shafts, tool holders, and mold components.

Medical instruments 

Implants, diagnostic equipment, etc., require a high surface finish and precise geometry.

1-  What’s the difference between cylindrical grinding and surface grinding?

First, the Operating method: Cylindrical grinding involves workpiece rotation and radial/axial grinding wheel feed, while surface grinding involves grinding wheel rotation and linear reciprocating or rotary motion of the workpiece.

Second, they differ in their applications: Cylindrical grinding targets the surface accuracy of axisymmetric workpieces, while surface grinding focuses on the relationships of two-dimensional surfaces.

Then, the clamping method: Cylindrical grinding uses a centering tool/chuck to clamp the workpiece’s center hole or outer diameter, while surface grinding uses a magnetic chuck/mechanical fixture to secure the workpiece’s bottom surface.

2- What is the difference between cylindrical grinding and centerless grinding?

Clamping Method: Cylindrical grinding requires a workpiece clamp (either a center or a chuck), while centerless grinding does not, with the workpiece floating on a pallet.

Application: Cylindrical grinding can be applied to not large-volume production of highly complex parts, while centerless grinding is suitable for large-volume production of basic components.

Positioning Accuracy: Cylindrical grinding can control the coaxiality of multiple features, while centerless grinding makes it difficult to control coaxiality.

3- What is the difference between cylindrical grinding and tool grinding?

Core Technology: Cylindrical grinding controls the dimensions of cylindrical/conical/complex contours, while tool grinding generates the tool’s micro-geometry through multi-axis machining.

Processing Objective: Cylindrical grinding focuses more on the functional surface of the part (dimensional/form accuracy), while tool grinding focuses on the tool’s cutting edge (edge sharpness/geometry).

Processing Object: Cylindrical grinding is used for mechanical parts such as shafts and sleeves, while tool grinding is used for cutting tools such as drills, milling cutters, and inserts.

Cylindrical grinding is often performed with 3- or 4-axis tools, while tool grinding utilizes 5- or 6-axis multi-angle machining.

4- How does CNC cylindrical grinding differ from other milling and turning CAM programs?

Differences like the process and toolpath generation: Cylindrical grinding uses a high-speed rotating grinding wheel, and the program focuses on feed rate, wheel speed, grinding allowance, and multi-segment grinding paths.

CAM software for milling/turning emphasizes toolpath management (such as feed rate, depth of cut, and path interpolation), chip control, and angle planning.

Programming instructions and control points: Grinding systems usually contain wheel feed, incremental depth, and multiple reciprocating strokes, paying more attention to controlling surface quality and grinding allowance.

Milling/turning systems usually use complex path interpolation combined with tool compensation and tool changing, supplemented by canned cycles to simplify cycle operations (such as drilling and tapping).

Precision and surface quality requirements: Grinding programs need accurate control of the grinding wheel diameter, grinding stages, and anti-high-temperature systems to reduce thermal deformation. While milling/turning can also have a high surface finish, they are primarily used for roughing or medium-precision manufacturing, and their programming often emphasizes toolpath coverage efficiency and surface integrity.

CAM software support differs from path work logic: the grinding CAM module automatically generates multi-segment grinding paths, creating fine paths based on cylindrical diameter tolerances and roughness.

Milling/turning CAM focuses on path optimization, automatic tool changing, cutting order planning, and geometric compensation, supporting multi-axis linkage and complex shape generation.