Palmary GV-70 Engine Valve Seat Grinder



Valve Seat & Guide Machines

Stock #
Palmary GV-70




Palmary GV-70 Engine Valve Seat Grinder

  • 1. Stable and Rigid Spindle Head

  • (1)The spindle runs on precision bearings assuring maximum spindle stability.

  • (2)The spindle head provides variable speed changed by frequency inverter.

  • 2. Precision Wheel Head

  • (1)The grinding wheel spindle is precision machined from high quality alloy steel SNCM-220 normalized tempered carburized and sub-zero treated precision ground and mirror-effect treated. Hardness reaches to over HRC 62° No deformation maximum wear resistance and lifetime accuracy are assured.

  • 3. Special Hydrostatic Bearing

  • (1)The Wheel spindle runs by using a special hydrostatic bearing and is especially ideal for precision grinding work. It features high speed no friction between metals no heat generation deformation-free extra high accuracy and continual use.

  • 4. Advanced Hydrostatic Lubrication System

  • (1)The slideways of the table and the wheel head are lubricated by and advanced automatic hydrostatic lubrication system. This provides various features such as extremely smooth movement added feed accuracy and superior grinding accuracy.

  • 5. Rigid Machine Structure

  • (1)The machine structure is manufactured from high-quality Meehanite cast iron heat treated and stress relived before machining.

  • (2)Slideways are high frequency hardened and precision ground. Maximum material stability for deformation-free and outstanding wear resistance.




Max. Diameter of Workpiece

Ø70 mm

Wheelhead Swivel Angle


Grinding Wheel Size

405 x 45 x 152.4

Grinding Wheel Speed

2700 m/min

Work Spindle Speed

80~480 rpm

Table Swiveling Angle


Spindle Elastic Collet Size

Ø5~Ø14 mm

Max. Length of Workpiece

150 mm

Wheel Spindle Motor

5HP 4P

Work Spindle Motor

1/2HP 4P

Spindle Lubricating Pump Motor

1/4HP 4P

Hydraulic Oil Pump Drive Motor

1HP 4P

Wheel Lubricant Tank Capacity

12 L

Hydraulic Tank Capacity

65 L

Coolant Tank Capacity

150 L

Standard Accessories:

1. Grinding Wheel and Flange
2. Standard Service Tool Kit
3. Standard Electrical Attachment
4. Standard Coolant Attachment
5. Diamond Tool
6. Automatic Dresser and Compensation Attachment
7. Automatic Grinding Cycles Attachment
8. Elastic Collet + Mould Head


Optional Accessories:

1. Automatic Loading and Unloading Attachment
2. Vibration Feeder Attachment
3. Magnetic Coolant Separator
4. Paper Filter