Operating Tips:

Centerless Grinding Machine (CG-40S, CG-60S, CG-80S)


◆ High rigidity structure

The base of this machine is made of high grade cast iron(FC30), and is dealed with normalization thermal treatment and double-V lubricating design, which can ensure that there is no deformation of the machine’s body after using for a long time.

The fine tuning of cutting feed can reach to 0.001mm.

The dresser device can do ±6°adjustment, and the workpiece and regulating wheel can connect accurately

There is a wide range to choose different kind of machine, to meet the needs of various grinding.

There is a complete optional equipment and accessories to choose, which can enhance operating function and convenience.

The machine is dealed with the most strict testing and quality controling, to make sure the best performance, precision, and low failure rate of machine.

◆ The dressing device 

The grinding wheel and dressing device is driven by oil pressure, with continuous variable speed smooth triming, and the triming base adopts a special alloy cast iron, dealed with burning stew processing and processed by precise shovel flower, to ensure the smooth and straight triming.

◆ Servo motor for regulating wheel

The regulating wheel uses servo motor to drive, which can be adjusted to the appropriate speed, and with vortex rod to cooperate the turbine to transmit the spindle, wihch can get better roundness due to the influence of less transmission parts.

◆ The cooling fan

The cooling fun can cut down the amount of spindle’s lubricating oil , which can reduce the thermal deformation and prolong the service life of oil seal, spindle and alloy spindle.

◆ The press switch

There is a press switch in the automatic lubricating system of grinding wheel spindle’s bearing.When the oil pressure does not reach to the rated value, or the spindle’s motor can not start, it can stop rotating automatically , to protect the spindle from rotating.

◆ The circulating oil mirror of grinding wheel’s spindle

It is easy to detect whether the circulating oil go bad or not through a visual way to make sure the spindle’s mormal rotating.

◆ The dressing fillet R of regulating wheel.

When passing the grinding, it is possible to change the workpiece’s grinding accuracy effectively by adjusting this fillet R.

◆ The oil pressure switch

This switch is used to change the dressing direction and speed of grinding wheel or regulating wheel

◆ The angle of inclination for regulating wheel

 It is to change the angle of inclination to adjust the axial direction fltting speed of workpiece.

◆ The hand wheel for feed fine tuning

The amout of feed per scale:0.001mm

◆ The oil pressure gauge of spindle

It is used to make the spindle work under the mormal circulating oil pressure value.When the pressure exceed the standard value, it stops working for protection automatically.

◆ The through type grinding 

Coping with the increasing demand of automation, various automatic delivery, receiving device are designed aiming at through type of circular tube, spindle and rod piece, which is suitable for a mass of workpiece grinding. Such fully automatic device has reduced the manufacturing cost significantly, while it improve the production capacity at the same time.

◆ The stop type grinding

In response to the top partgrinding, shoulder part grinding and mutipath type grinding, its automatic delivery and receiving device can be designed according to the workpiece’s apperance and length. Such fully automatic device can not only reduce the operating error and save labor cost, but also improve the production capacity.

Main Technical Features

Specification Unit CG-40S CG-60S CG-60SA CG-80S CG-80SA
Working dia.of stadard workrest mm Φ0.5~40,  0.005-0.5(special) Φ1~60 Φ1~60 Φ1~80 Φ1~80
Size of grinding wheel mm Φ305×150×Φ120 Φ455×205×Φ228.6 Φ455×205×Φ228.6 Φ510×205×Φ254 Φ610×205×Φ304.8
Size of regulating wheel mm Φ205×150×Φ90 Φ255×205×Φ111.2 Φ255×255×Φ111.2 Φ305×205×Φ127 Φ330×205×Φ203.2
Speed of grinding wheel R.P.M 1950 1520R 1520 1350 1100
Speed of regulating wheel R.P.M 0~320 0~250 0~250 0~250 0~250
Power of grinding wheel’s driving motor HP 7 1/2 15 20 20 25
Power of regulating wheel’s driving motor KW 2 AC servo motor 3 AC servo motor 3 AC servo motor 3 AC servo motor 3 AC servo motor
Power of oil hydraulic pump driving motor HP 1 2 2 2 2
 Power of cooling pump driving motor HP 1/8 1/4 1/4 1/4 1/4
Feed of regulating wheel’s hand wheel mm/r 3.5 3.5 3.5 3.5 3.5
mm/div 0.02 0.05 0.05 0.05 0.05
feed of regulating wheel’s fine tuning hand wheel mm/r 0.1 0.1 0.1 0.1 0.1
mm/div 0.001 0.001 0.001 0.001 0.001
Feed of workrest’s hand wheel mm/r 7 9 9 9 Servo feed, min. input 0.0005mm
mm/div 0.05 0.1 0.1 0.1
Feed of workrest’s fine tuning hand wheel mm/r 0.2 0.2 0.2 0.2 Servo feed, min. input 0.0005mm
mm/div 0.001 0.001 0.001 0.001
Feed of dressing hand wheel mm/r 1.5 2 2 2 2
mm/div 0.01 0.01 0.01 0.01 0.01
Angle of inclination for regulating wheel   +5°~-3° +6°~-5° +6°~-5° +5°~-3° +5°~-3°
Rotation angle of regulating wheel   ±5° ±6° ±6° ±5° ±5°
Machine demension mm 1800×1400×1450 2350×1960×1550 2350×1960×1550 2550×2050×1650 2550×2050×1650
Packing demension mm 2350×1650×1770 2900×2400×1850 2900×2400×1850 3050×2500×1250 3050×2500×1250
Machine weight kg 1700 2850 2950 3200k 6000
Packing weight kg 1850 3005 3100 3500 6500

Note: All models can be supplied with CNC system as require.


Standard accessories:

◆ Grinding wheel and flange / 1 set

◆ Oil tank and pump / 1 set

◆ Dressing wheel and flange / 1 set

◆ Diamond dresser / 2 peices

◆ Stopping toolpost and blade / 1 set

◆ Working light / 1 piece

◆ Through type toolpost and blade / 1 set

◆ Cooling fan /1set

◆ Electric cabinet / 1 set

◆ Flange puller / 1 set

◆ Water tank and pump / 1 set

◆ Toolbox / 1 set


Optional accessories:

◆ Workpiece loading device

◆ Magnet filter

◆ Workpiece unloading device

◆ Cooling device

◆ Paper filter     

◆ Auto oil lubricator of guideway and ball screw

January 22 2018