Used grinding machines - cylindrical centerless grinders

Max. weight between centers	350 kg
Type of CNC	sinumerik 840D FM-NC
Grinding wheel width	20 mm

CNC	Yes
Grinding wheel diameter	570 mm

CNC	Yes
Grinding wheel diameter	800 mm
Grinding wheel speed	70 rpm

Type of CNC	Siemens Simatic OP3
Grinding wheel width	100 mm

CNC	Yes
Grinding wheel diameter	750 mm
Grinding wheel speed	935 rpm

Type of CNC	Siemens 802D
Grinding wheel width	80 mm

Max. length of workpiece	3200 mm
Type of CNC	-
Grinding wheel width	305 mm

CNC	No
Grinding wheel diameter	750 mm
Grinding wheel bore	80 mm

CNC	Yes
Grinding wheel diameter	610 mm
Grinding wheel bore	304.8 mm

Type of CNC
Grinding wheel width	200 mm
Grinding wheel speed	1000 rpm

Max. length of workpiece	95 mm
Type of CNC	SIEMENS 840 D
Grinding wheel width	20 mm

CNC	Yes
Grinding wheel diameter	406 mm
Grinding wheel speed	2353 rpm

CNC	Yes

Max. length of workpiece	300 mm
CNC	Yes

Max. weight between centers	20 kg
Type of CNC	Toyoda CNC Controller

Max. length of workpiece	250 mm
Grinding wheel width	250 mm

Type of CNC

Type of CNC
Grinding wheel width	500 mm

Grinding wheel diameter	600 mm

CNC	Yes
Grinding wheel diameter	610 mm
Grinding wheel bore	350 mm

Type of CNC	Siemens 850
Grinding wheel width	420 mm

Max. length of workpiece	5000 mm
Type of CNC

CNC	No
Grinding wheel diameter	600 mm

CNC	No
Grinding wheel diameter	300 mm

Type of CNC
Grinding wheel width	100 mm

Max. length of workpiece	1000 mm
Type of CNC

Max. weight between centers	350 kg
Grinding wheel diameter	320 mm

Max. length of workpiece	2000 mm
CNC	Yes
Grinding wheel diameter	630 mm

Centre height	375 mm
Type of CNC	Kavalír

Max. length of workpiece	1050 mm
Type of CNC
Grinding wheel width	76 mm

Centre height	7000 mm
Grinding wheel diameter	760 mm
Grinding wheel speed	764 rpm

Max. length of workpiece	1600 mm
Grinding wheel diameter	400 mm
Grinding wheel bore	127 mm

Type of CNC
Grinding wheel width	100 mm

Max. length of workpiece	1050 mm
CNC	No
Grinding wheel diameter	760 mm

Centre height	7000 mm
Type of CNC
Grinding wheel width	76 mm

Max. length of workpiece	400 mm
Type of CNC	S7-300
Grinding wheel width	500 mm

CNC	No
Grinding wheel diameter	500 mm
Grinding wheel bore	305 mm

Max. length of workpiece	1000 mm
Centre height	175 mm
Type of CNC	GE FANUC Series 18-T

Max. weight between centers	1000 kg
CNC	Yes
Grinding wheel diameter	500 mm

Introduction to Cylindrical Centerless Grinding Machines

Cylindrical centerless grinding machines are essential tools in the metalworking industry, designed for the precision grinding of cylindrical components without the need for centers to hold the workpiece. This grinding method is highly efficient for producing parts with high accuracy and surface finish, making it indispensable in industries such as automotive, aerospace, medical device manufacturing, and general engineering.

Types of Cylindrical Centerless Grinding Machines

Cylindrical centerless grinding machines come in various configurations, each suited to specific grinding needs and production requirements:

Infeed (Plunge) Grinding: This method involves feeding the workpiece into the grinding wheel to grind specific sections without axial movement. It is ideal for parts with complex shapes and varying diameters.
Throughfeed Grinding: In this method, the workpiece is fed continuously through the grinding wheels, making it suitable for grinding long, cylindrical parts with consistent diameters.
Endfeed Grinding: Combines elements of both infeed and throughfeed grinding. The workpiece is axially fed into the grinding wheels, making it ideal for parts with tapered sections.

Key Features and Specifications

When selecting a cylindrical centerless grinding machine, several key features and specifications should be considered to ensure it meets production needs:

Grinding Capacity: The maximum diameter and length of the workpieces that the machine can handle. This is crucial for ensuring the machine can accommodate the desired part sizes.
Wheel Size and Speed: The size and speed of the grinding wheel affect the grinding process's efficiency and quality. Larger wheels are suitable for high-volume production, while variable speed control allows for flexibility in grinding different materials.
Automation Level: Depending on production volume, the level of automation (manual, semi-automatic, or fully automatic) impacts efficiency and throughput.
Precision and Accuracy: The machine's ability to maintain tight tolerances and achieve high surface finishes, which is essential for high-quality parts.
Coolant System: Effective cooling systems are necessary to dissipate heat generated during grinding, preventing thermal damage to the workpiece and grinding wheels.
Ease of Setup and Operation: User-friendly controls and features that facilitate quick setup and adjustments can enhance productivity and reduce downtime.

Advantages of Using Cylindrical Centerless Grinding Machines

Investing in high-quality cylindrical centerless grinding machines offers numerous benefits:

High Precision and Accuracy: Ensures parts meet exact specifications, which is critical for high-performance applications.
Increased Efficiency: Automated and high-speed grinding processes reduce production times and labor costs.
Versatility: Capable of handling various part sizes and shapes, catering to diverse manufacturing needs.
Improved Surface Finish: Achieves superior surface finishes, reducing the need for additional finishing processes.
Reduced Workpiece Handling: The absence of centers and chucks simplifies loading and unloading, enhancing productivity.

Considerations When Buying a Cylindrical Centerless Grinding Machine

To select the right cylindrical centerless grinding machine for your needs, consider the following factors:

Production Volume: Determine the volume of parts to be produced to choose a machine with suitable capacity and speed.
Part Specifications: Ensure the machine can handle the specific diameters, lengths, and shapes of the parts you need to grind.
Precision Requirements: Match the machine’s precision capabilities with your quality standards.
Budget: Balance the initial investment with long-term operational costs, including maintenance and consumables.
Service and Support: Evaluate the availability of technical support and maintenance services for the machine.
Training: Assess the need for operator training to effectively use the machine’s advanced features.

Popular Brands and Pricing

Several reputable brands manufacture cylindrical centerless grinding machines known for their reliability and performance. Here are a few notable ones:

Studer: Known for high-precision grinding machines, Studer offers a range of models suitable for various applications. Prices typically range from $100,000 to over $500,000, depending on the model and specifications.
Cincinnati: A leading manufacturer of centerless grinding machines, Cincinnati provides robust and efficient solutions. Pricing generally ranges from $80,000 to $450,000.
Danobat: Specializes in advanced grinding technology, offering machines with high automation and precision. Prices typically range from $120,000 to over $600,000.
TGS (Total Grinding Solutions): Provides a variety of centerless grinding machines with a focus on high performance and affordability. Pricing generally falls between $90,000 and $400,000.
Junker: Known for their innovative grinding solutions, Junker machines are used in various high-precision industries. Prices typically range from $150,000 to over $700,000.

Conclusion

Cylindrical centerless grinding machines are essential tools in the metalworking industry for producing high-precision cylindrical parts. With different types such as infeed, throughfeed, and endfeed grinding, selecting the right machine depends on specific production needs and part specifications. Key factors to consider include grinding capacity, wheel size and speed, automation level, precision, coolant system, and ease of operation. Leading brands like Studer, Cincinnati, Danobat, TGS, and Junker offer a range of high-quality cylindrical centerless grinding machines to suit different applications and budgets. By carefully evaluating production volume, part specifications, precision requirements, and budget, businesses can invest in the right cylindrical centerless grinding machine to enhance their manufacturing capabilities and ensure consistent, high-quality part production.

Used grinding machines - cylindrical centerless grinders 140

Cetos BHB 40/1500 CNC - sinumerik 840D FM-NC Cylindrical centreless grinding machine

Farrel Giustina Cylindrical centreless grinding machine

TOS BUA63 Cylindrical centreless grinding machine

Herkules Cylindrical centreless grinding machine

Overhauled Ghiringhelli M2200 Cylindrical centreless grinding machine

Ghiringhelli M100SP400 Cylindrical centreless grinding machine

Used Hartex SR4 Cylindrical centreless grinding machine

Toyoda GE-3Pi Cylindrical centreless grinding machine

Centerless grinder GOZUA RHC 125P

Gerhingelli 500 S 600 Cylindrical centreless grinding machine

Ghiringhelli M300 SP610 CNC 6 ASSI Cylindrical centreless grinding machine

Stanko XC3 XW193 Cylindrical centreless grinding machine

Used Rossi Monza 300 Cylindrical centreless grinding machine

TOS BUB 32/1000 Cylindrical centreless grinding machine

Cylindrical grinding machine HOL-MONTA UB 63/2000

Waldrich Siegen WS2A Cylindrical centreless grinding machine

Karstens K11/1600 Cylindrical centreless grinding machine

WALDRICH SIEGEN WS 2a Cylindrical centreless grinding machine

WMW-Mikrosa SASL-200X500

Used TSCHUDIN PL 105 A Cylindrical centreless grinding machine