Laven Manufactures world class CNC Centre-less grinding machines delivering excellent precision and high accuracy.

CNC Centerless Grinding Machine For In-Feed and Thru-feed Application

Grinding Capacity & Grinding Wheel
Regulating Wheel (with outboard support)
Dimensions and Weight*
Power Requirements
Standard Accessories
Optional Accessories*
Grinding Capacity & Grinding Wheel
Grinding Capacity

Diameter (mm)            3-100Ø

Grinding Wheel

Dimension (mm)           610Ø
  Width (mm)      

    Bore (mm)                304.8Ø

  Velocity (m/s)               33/45

Regulating Wheel (with outboard support)
Regulating Wheel (with outboard support)

 Diameter (mm)                                300Ø     

  Width (mm)                                   200/260   

Bore (mm)                                      127Ø  

V.F.D Speed (rpm)                             10-280     

 Tilting  Angle                                     + 6°      

                                                        - 3° 

Swiveling Angle                                  ± 4°        

Dimensions and Weight*
Machine Dimensions and Weight*

               Length                                            3850mm      

                 Width                                            1900mm       

                 Height                                            1750mm       

Net Weight Approx.                               5400kgs

Power Requirements
AC 415V, ​3 Phase, ​50Hz

       Grinding Wheel Motor                          15/22 KW

Regulating Wheel Motor                          3-7 KW

            Coolant Pump                                   0.37 KW

         Lubrication Pump                                0.12 KW

       Hydraulic Unit Motor                              15/22 KW

Standard Accessories
Standard Accessories
  • 3 Axes CNC Controllers (FANUC/MITSUBISHI/SIEMENS).
  • Grinding Wheel Flange.
  • Regulating Wheel Flange.
  • Coolant Pump with Tank.
  • Hydraulic Tank with Pump.
  • Motorized Centralized Lubrication for Slides.
  • Machine Lamp.
  • Splash Guards.
  • VFD for regulating wheel.
  • Instruction Manual.
  • Work rest with Ejector Unit.
  • Tool Kit.
Optional Accessories*
Optional Accessories
  • Auto Loading Unit.
  • Magnetic Separator for Coolant Unit.
  • Full Machine Guard.
  • CSS for Grinding Spindle.
  • Automatic Balancing for Grinding Spindle.
  • Fume Extraction Unit.
  • Engine Valves.
  • Needle Rollers.
  • Cylinder Liners.
  • Valve Guides.

Machine Bed

We use high strength cast iron which makes the machine bed rigid, vibration resistance and better heat resistant. The feeding mechanism adopts a swivel plate for adjustment of the job taper. All the casting parts (bed, two spindle housings, swivel plate, dressing bottom slide, dressing upper slide etc.) are treated for ageing.

Grinding Wheel Spindle Head

The grinding wheel spindle head is mounted on top of the base. The spindle assembly consists of hydrodynamic bearings with fine adjustments and accuracy. The grinding wheel is designed to accommodate 500 Diameter grinding wheel. The grinding spindle hardness is maintained within 58-60 Hours for long life. The motor drives the grinding wheel spindle rotating via V-belt.

Regulating Wheel Spindle

The regulating wheel spindle adopts double supporting anti-friction bearings, including one pair of roller precision bearing for radial force and one pair of angular contact bearing for axial force. The reg. wheel can achieve step-less speed variation between 8 to 300 r/min by VFD. Outboard support is provided for better accuracy. The spindle hardness is maintained within 58-60Hrc for long life.

In-feed system

The In-feed system adopts two layers of slides. The upper one (regulating wheel head) adjusts to meet to grind different job dimensions and the bottom one for main in-feeding. The regulating wheel head feeding system as the main feeding system is driven by servo motor via ball screw. The feeding guide way is a linear flat guide way. Both the ball screw and linear guideway can lubricate themselves automatically with the help of auto lubrication unit which is provided along with the machine.

Grinding Wheel

 The grinding wheel profile is dressed by rotary diamond crusher. The dressing feeding is driven by servo motors and ball screws. The real-time compensation can be achieved in the two axes of dressing feeding and reg. wheel head feeding. The compensation amount, number of times and frequency can be adjusted on the operation panel. Both the Ball screw and linear guideway can lubricate themselves automatically with the help of auto lubrication unit which is provided along with the machine.

Dual path control

Dual path control enables parallel dressing and machining feature in the machine, so that the machine is not idle during dressing of the grinding wheel and continuous production is carried out.