Precision Machine Tool

250 mm Cylindrical Grinding Machine | Precision External Grinding Solution

Our 250 mm Cylindrical Grinding Machine is designed for high-precision external cylindrical grinding of small to medium-sized components. Engineered with a rigid machine structure and precision spindle assembly, this machine ensures excellent surface finish, dimensional accuracy, and consistent performance for tool room and production applications.

Suitable for grinding components up to 250 mm between centers, the machine is ideal for shafts, pins, bushes, sleeves, and precision engineering parts. Its compact design, smooth operation, and low maintenance make it a reliable choice for job work and small-scale manufacturing units.

Key Features:

• Grinding capacity up to 250 mm between centers

• Heavy-duty cast iron body for vibration-free operation

• High-precision grinding spindle for superior finish

• Smooth and accurate table movement

• User-friendly controls and easy maintenance

• Compact and space-saving design

Applications:

• Shaft and pin grinding

• Bush and sleeve grinding

• Automotive and engineering components

• Tool room and job work applications

Benefits:

• High accuracy and consistent grinding results

• Reduced setup time and operator effort

• Reliable performance with long service life

• Ideal for small and medium batch production

Our 250 mm Cylindrical Grinding Machine delivers precision, durability, and efficiency, making it the perfect solution for manufacturers seeking reliable cylindrical grinding performance.

• Grinding Length: 300 mm to 1500 mm

• Admit Between Centres: 300 mm to 1500 mm

• Centre Height: 130 to 250 mm

• Maximum Workpiece Weight (Between Centres): As per model

Work Head

• Spindle: Precision spindle with imported angular contact bearings

• Speed Range: Infinitely variable via AC servo motor with VFD

• Speed Display: Digital (RPM display on CNC screen)

• Swivel: ± 90° (programmable / manual as per configuration)

• Spindle Taper: MT / Special collet system (as per requirements)

Wheel Head

• Wheel Spindle: Heavy-duty, dynamically balanced spindle

• Bearings: P4 / P2 class precision bearings

• Wheel Size: As per model / application

• Wheel Speed: Constant surface speed (CSS) programmable

• Wheel Dressing: Automatic CNC wheel dresser

Table & Slideways

• Table Movement: Hydraulic / Servo driven longitudinal movement

• Table Swivel: ± 6° / ± 10° (as per model)

• Guideways: Hardened & ground guideways with Turcite-B / LM guideways

• Lubrication: Centralized automatic lubrication system

CNC Control System

• Controller: Siemens / Fanuc / Mitsubishi (customer choice)

• Axes Control: X & Z axes with AC servo motors

• Resolution: 0.0001 mm (0.1 micron)

• Programming: Conversational + ISO G-code

• Storage: Multiple program memory with USB / Ethernet interface

• Diagnostics: Self-diagnostic & alarm display

Tailstock

• Type: Hydraulic / Programmable servo tailstock

• Centre Taper: MT type

• Quill Movement: Programmable via CNC

• Clamping: Hydraulic with pressure regulation

Hydraulics & Lubrication

• Hydraulic System: Integrated power pack with pressure control

• Lubrication: Automatic centralized lubrication with level monitoring

Coolant System

• Coolant Tank: High-capacity

• Pump: High-pressure pump

• Filtration: Magnetic separator + paper band filter / cartridge filter

• Nozzle: Adjustable multi-point coolant delivery

Electricals

• Power Supply: 415 V ±10%, 50 Hz, 3 Phase

• Control Voltage: 24 V DC

• Wiring: Flame-retardant, numbered cables

Application

• Grinding of hypodermic needles / cannula tubes

• Suitable for SS 304 / SS 316L medical-grade stainless steel

• Used for point grinding / bevel grinding / OD finishing.
  
  

  Grinding Parameters

  • Grinding Type:

    • OD Cylindrical Grinding

    • Angular / Bevel Point Grinding (3-facet / 5-facet optional)

  • Bevel Angle Range: 12° – 18° (adjustable)

  • Tip Geometry:

    • Sharp, burr-free

    • No tube collapse or deformation

• Work Holding & Support

  • Work Holding Method:

    • Specialized collet / guide bush system

    • Rotating support to prevent needle bending

  • Loading:

    • Manual / semi-automatic

    • (Automatic loading optional)

• FOR MORE DETAILS CONTACT US.

CNC Surface Grinding Machine – Technical Specifications 1. Table & Travels

• Table Size (L × W): 600 × 300 mm to 1500 × 600 mm

• Maximum Longitudinal Travel (X-axis): 500 – 1400 mm

• Maximum Cross Travel (Y-axis): 300 – 650 mm

• Vertical Travel (Z-axis): 300 – 500 mm

2. CNC Control & Axes

• CNC Controlled Axes:

  • X-axis – Table longitudinal

  • Y-axis – Cross feed

  • Z-axis – Vertical in-feed

• Controller: Fanuc / Siemens / equivalent

• Feed Resolution: 0.001 mm

• Automatic Grinding Cycles: Rough, Finish, Spark-out

3. Grinding Wheel Head

• Wheel Size (OD × Width × Bore): 300–450 × 25–50 × 127 mm

• Wheel Spindle Motor: 5 – 15 HP

• Spindle Type: Cartridge type, precision bearing mounted

• Wheel Speed: Constant surface speed (CSS)

4. Work Holding

• Magnetic Chuck: Permanent / Electromagnetic

• Chuck Size: Matching table size

• Maximum Job Weight on Chuck: As per chuck capacity

5. Accuracy & Finish

• Flatness: ≤ 0.005 mm / 300 mm

• Parallelism: ≤ 0.005 mm

• Surface Finish: Up to Ra 0.2 µm

6. Automatic Features

• Automatic wheel dressing with compensation

• Automatic down feed & cross feed

• Automatic spark-out

• In-process gauging (optional)

7. Coolant & Filtration

• High-pressure coolant system

• Multi-stage filtration (magnetic / paper filter optional)

• Coolant tank capacity: 150 – 300 L

8. Machine Construction

• Heavy-duty cast iron base

• Hardened & ground guideways

• Turcite-B coated slideways

9. Electricals

• Power Supply: 415 V, 3-Phase, 50 Hz

• Total Connected Load: 15 – 30 kW

10. Standard Accessories

• CNC controller

• Automatic wheel dresser

• Coolant system

• Wheel balancing arbor

• Safety guards & work light

11. Optional Accessories

• Rotary table

• Vertical spindle attachment

• CBN / Diamond wheel package

• In-process gauging system

• Mist extractor

Typical Applications

Mould & die components, tool room jobs, precision plates, automotive & aerospace parts, hardened steel components.

The CNC Bore Grinding Machine manufactured by Precision Machine Tools is designed to provide high-precision grinding for internal bores and cylindrical surfaces of industrial components. Equipped with advanced CNC technology, this machine ensures accurate control over grinding operations, delivering superior surface finish and consistent dimensional accuracy.

Built with a rigid machine structure and precision-engineered components, the CNC Bore Grinding Machine offers stable performance with minimal vibration. The CNC control system allows operators to easily program grinding parameters and perform automated grinding cycles, improving productivity and reducing manual intervention during the machining process.

This machine is widely used for grinding internal diameters of components such as bearings, bushings, sleeves, gears, and other precision cylindrical parts. It is suitable for industries such as automotive, aerospace, heavy engineering, and manufacturing units where high-accuracy bore grinding is essential.

Precision Machine Tools focuses on delivering advanced and reliable grinding solutions for modern industrial requirements. The CNC Bore Grinding Machine offers excellent grinding accuracy, efficient operation, and long service life, making it an ideal choice for businesses seeking high-performance internal bore grinding equipment.

The CNC Grinding Machine manufactured by Precision Machine Tools is designed to deliver high-precision grinding with advanced automation and consistent performance. Equipped with modern CNC technology, this machine allows accurate control over grinding parameters, ensuring superior surface finish and precise dimensional accuracy for a wide range of industrial components.

Built with a rigid machine structure and precision-engineered components, the CNC Grinding Machine ensures smooth operation with minimal vibration. The CNC control system enables automatic grinding cycles, programmable operations, and precise wheel movements, which significantly improve productivity and reduce manual intervention in the grinding process.

This machine is widely used in industries such as automotive, aerospace, tool rooms, and heavy engineering for grinding components like shafts, rollers, bearings, bushings, and other precision metal parts. Its user-friendly interface, high spindle speed, and reliable control system allow operators to achieve consistent results even in high-volume production environments.

Precision Machine Tools focuses on delivering advanced and dependable grinding solutions for modern manufacturing industries. The CNC Grinding Machine is designed for durability, accuracy, and efficiency, making it an ideal choice for businesses seeking high-performance grinding equipment.

2 Axis CNC Grinding Machine | Precision CNC Grinding Solution

Our 2 Axis CNC Grinding Machine is designed for high-accuracy and repeatable grinding operations with efficient CNC automation. Equipped with two controlled axes, this machine ensures precise movement, consistent grinding results, and excellent surface finish, making it ideal for modern manufacturing and tool room applications.

The CNC system allows easy programming of grinding parameters, reduces operator dependency, and improves productivity. With a rigid machine structure and high-precision spindle, the 2 Axis CNC grinding machine delivers stable, vibration-free performance for continuous industrial use.

Key Features:

• 2 Axis CNC control for accurate and repeatable grinding

• High-precision grinding spindle for superior surface finish

• Rigid cast iron body for vibration-free operation

• User-friendly CNC interface with programmable cycles

• Consistent accuracy with reduced setup time

• Low maintenance and energy-efficient design

Applications:

• Cylindrical and surface grinding operations

• Shaft, pin, and bush grinding

• Automotive and precision engineering components

• Tool room and production grinding

Benefits:

• High dimensional accuracy and repeatability

• Improved productivity and process control

• Reduced manual intervention and human error

• Reliable performance with long service life

Our 2 Axis CNC Grinding Machine is the ideal choice for manufacturers seeking precision, efficiency, and automation in CNC grinding operations.