Centerless Grinder

High Precision

Accurately maintains dimension accuracy to meet the stringent standards of automotive, aerospace, and medical sectors.

Consistent Batch Quality

Consistent surface finish and roundness to reduce rework and scrap rates.

High Production Volume

Allows 24/7 high-speed operation, maintaining production volume consistent with repeated changeovers.

High Rigidity Structure

Ultra-high rigidity roller guides provide strong vibration resistance, maintaining precision stability even in long-term use.

Automation Integration

Seamless integration with upstream and downstream production lines, to support robot material handling.

Precise Workpiece Positioning System

Stand-alone up and down slide positioning reduces processing errors to a minimum, ensuring maximum batch consistency.

Fast Changeover

Simplified conversion and setup reduce machine setup time and ensure maximum production flexibility.

Simple-to-use operation

Touch-screen HMI facilitates easy-to-use operation by novice operators for multiple high-precision machines at the same time.

From raw material intake to finished product sorting, Oturn integrates all the necessary automation modules for you in one go—feeders, robots, pick-and-place gantries, measurement, cleaning, and sorting components. The entire system is designed, manufactured, and debugged by us, and is ready for production upon arrival at your factory, eliminating the need for coordination between multiple suppliers or secondary installation.

Oturn’s CNC centerless grinding machines are equipped with a fully automatic dimension compensation system and 100% online inspection function, forming a quality closed loop. Each workpiece is inspected immediately after processing, and the tool position compensation is adjusted in real time based on the inspection results to ensure high precision and zero defect rate throughout the entire process.

Smart Dressing Function

An automatic programmable dressing system dresses the grinding wheel automatically after dressing a predetermined number of parts, keeping grinding in optimal condition, reducing manual interference, and improving part consistency and production stability.

Smart Touchscreen Human-Machine Interface (HMI)

A touchscreen-suitable design makes the operating process easy to control, allowing even inexperienced operators to operate several high-precision machine tools in parallel, reducing training costs and workshop flexibility.

Fast-Speed Communication Connectivity

Combines remote access and remote technical support so that engineers can visually monitor the operation of equipment in real time, perform remote diagnostics, and set parameters and thereby minimize downtime.

Automatic measurement system

Accurately measures the workpiece diameter and provides real-time feedback to the control system, enabling automatic dimensional compensation to ensure each piece has strict tolerance requirements and further improving the yield rate of finished products.

When choosing a CNC centerless grinding machine, your top priorities are processing accuracy, production efficiency, and stability. Oturn specializes in micron-level high-precision and high-rigidity machine tool design, ensuring stable operation even during prolonged high-speed operation, thereby enhancing product consistency and production capacity.

Additionally, Oturn offers a one-stop turnkey service, providing comprehensive support from equipment installation, commissioning, to operator training, to meet your rapid production ramp-up requirements. Our professional global after-sales team is always ready to respond, helping you minimize equipment downtime risks.

Choosing Oturn means choosing a reliable partner, making your production more efficient and worry-free.

Oturn’s centerless grinding machines are widely used in various industries to meet the high-precision machining requirements of complex cylindrical parts.

Common Hardware Component Machining

Our CNC centerless grinding machines are widely used for high-precision machining of various hardware components, including precision bearings, various shaft components, gears, oil seals, transmission components, and motor shafts. These components are produced in large batches and require strict machining precision. Our equipment can reliably and efficiently complete the machining process, ensuring consistent product quality for each batch.

Complex Component Machining

We are also capable of handling complex and challenging hardware component machining, such as arthroscopic scrapers, bone drill blanks, small powdered hard alloy components, aerospace fasteners, and transmission bushings. For these parts, which demand extremely high machining rigidity and automation levels, we leverage advanced CNC systems and high-rigidity machine tool structures to ensure exceptional machining quality and production efficiency.

• How does centerless grinding differ from cylindrical grinding?

Centerless grinders do not hold workpieces in place with the help of a center shaft or chuck. Instead, the workpiece sits on support blades, which rotate through an adjustment wheel, and thus are best suited for high-volume production of high-precision cylindrical parts. Cylindrical grinders require workpieces to be clamped on a center shaft or chuck and thus are best suited for machining conical- or complex-shaped workpieces.

• What is the typical price range for a CNC centerless grinding machine?

Our price for CNC centerless grinders is very flexible depending on grinding wheel size, horsepower, automation level, and other capabilities. Low-end machines start at about $50,000, but top-of-the-line full automatic systems cost above $200,000. We have solutions tailored to fit your manufacturing needs and budget.

• What kind of after-sales support do you offer?

We deliver comprehensive after-sales care, including on-site setup, hands-on training for your operators, remote technical assistance, and clear maintenance instructions. With our global service network, you’ll receive prompt help no matter where your operations are located. Additionally, we provide spare parts availability and software updates to keep your machine running smoothly over time.

• How often should the machine be maintained?

To achieve maximum performance, the equipment is kept in good condition by regular maintenance. Routine daily inspections and cleaning need to be done. Periodic more detailed checks such as lubrication, calibration, and system testing should be done monthly or quarterly depending on usage levels. We have comprehensive maintenance programs and training to help you maintain your equipment in proper condition.

• Do you provide on-site installation and commissioning services after purchase?

We have established a service network in multiple regions around the world to ensure that you can quickly obtain our support no matter where you are. When you encounter issues, you can contact our technical team immediately via phone, email, or online customer service. For emergencies, we also provide remote diagnosis and guidance to help you resolve equipment malfunctions as quickly as possible. Additionally, we will arrange on-site services based on actual needs to ensure the equipment returns to normal operation and minimize your downtime.

• How can overseas customers obtain fast after-sales service support?

Yes, after purchasing our CNC centerless grinder, we will arrange for professional engineers to visit your site for installation and commissioning to ensure the equipment can be smoothly integrated into production. We will also provide training for operators to help them quickly master the machine’s operation and maintenance techniques, ensuring you can use it with confidence.