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Product Name
Model DC-Series
Series Centerless Grinding Machine
Catalog
Product Description

A Center Grinding Machine precisely grinds the outer daimeter of cylindrical material and is used variously across all industrial sectors including automobile, electricity, electronics and appliances. This machine does not support the center of processed goods and develops the grinding process which is different from a cylindrical grinder.

 

 

CENTERLESS GRINDING MACHINE

DAEOUNG MACHINERY  DC-Series

Spindle and Bearing

DAEOUNG MACHINERY  DC-Series 1

- Raises axial stiffness by supporting the grinding wheel with workhead and 3 bearings at shaft ends.
- Use of a hydraulic dynamic bearing to enhance high bearing stiffness and vibration reduction effect, showing excellence in powerful grinding and precision grinding.

 

Feeding device and horizontal spin device

DAEOUNG MACHINERY  DC-Series 2

- Lower feeding device and upper feeding device performing respectively the feeding of the grinding stand and regulating wheel.
- Precise feed adjustment is enabled by cross feed of a feeding device, a minute feeding handle and the back flash adjustment device of a feeding screw.
- The lower slide sideway maintains long-term precision by being precisely produced by multiple profiles.
- A regulating wheel spin device capable of rotating up to ±5 degrees horizontally is used to adjust a level of parallel on the regulating wheel axis and the taper angle (adjustment during the operation also possible)

 

Inversion device of a regulating wheel

DAEOUNG MACHINERY  DC-Series 3

- Enables the regulating wheel to rotate up to ±5 degrees, which broadens ranges of the speed at which work pieces pass.
- Very useful for setting the reference position when working during the stoppage.

 

Items

Specifications

Grinding capacity (Special)

Ø1mm~Ø40mm(Ø25mm~Ø100mm)

Grinding wheel(Diameter×Width×Bore)

Ø455×205×Ø228.6mm

Regulating wheek(Diameter×Width×Bore)

Ø255×205×Ø111.2mm

R.P.M of grinding wheel

1,500 R.P.M. (2,000 m/min)

R.P.M of regulating wheel

10~308 R.P.M. (Stepless)

Motor for grinding wheel spindle

Standard 11kw(15HP)×4P

Motor for regulating wheel spindle

1.5kw(2HP)×4P

Tilting angle of regulanting wheel

±5°

Swivelling angle of regulanting wheel

±2°

Floor space

2,300mm×2,200mm

Net weight

3,000kg

 

HYDROSTATIC BEARING TYPE

DAEOUNG MACHINERY  DC-Series 4

Features

- Super-precision, high-speed grinding machines.
- Use of hydrostatic bearings.
- High-speed grinding- enhanced grinding wheel speed of 2,700m/min.
- Precision grinding- excellent bearing stiffness and high level of rotation.
- Heavy grinding- excellent axial stiffness to be effective also for heavy grinding.

 

Use of hydrostatic bearings

- When oil under fixed pressure is supplied to the oil pocket of a hydrostatic bearing arrayed around the shaft, the shaft is positioned at the center of the axis by the oil pressure.
- Excellent in ability to maintaining the axis at the center against the external load
- Powerful axial stiffness and excellent degree of rotation.
- No shaft wear because shaft and bearing do not come into contact.

 

DAEOUNG MACHINERY  DC-Series 5

 

Dual Support Spindle System

DAEOUNG MACHINERY  DC-Series 6

Features

- High-precision, high-efficiency, heavy cutting large-scale centerless grinding machine.
- Bed of super-stiffness structure.
- Grinding adjustment, a complete support of both axis.
- Assembling the special precision taper roller bearing and angular ball bearing under optimal pre-pressure.
- Guarantees high precision and long life by adopting a forced spray type of lubrication.
- Enables a precise feeding also for heavy cutting with the use of powerful precision ball screws at the loser slide.

DAEOUNG MACHINERY  DC-Series 7

DAEOUNG MACHINERY  DC-Series 8

 

POWERFUL AND USER FRIENDLY CNC CONTROL SYSTEM

DAEOUNG MACHINERY  DC-Series 9

Features

- CNC Control System can be applied to each Centerless Grinding Machine.
- CNC control system programmed to be primarily convenient for operation.
- Easy automation such as precision grinding, workpiece transfer, work transfer.
- Applies to detailed functions such as lower slide feeding, upper slide feeding, GW dressing, RW dressing, swivel device feed, and workpiece loading automatic device.
- Performs various types of grinding work, that is penetration, stop work cycle conversion, workpiece data modifications and change of grinding conditions.

 

FEEDING DIAGRAM

DAEOUNG MACHINERY  DC-Series 10

Products of DAEOUNG MACHINERY
Centerless Grinding Machine