Centerless OD Burnishing Machines
(External Centreless Burnishing Machine)

Roller Burnishing is a cold working Process which produces a fine surface finish by the planetary rotation of hardened rolls over a bored or turned metal surface. Roller Burnishing involves cold working the surface of the work piece to improve surface structure

The COBUM series of roller burnishing machines are designed to give a mirror - like finish with a tough">


 

Centerless OD Burnishing Machines
(External Centreless Burnishing Machine)

Roller Burnishing is a cold working Process which produces a fine surface finish by the planetary rotation of hardened rolls over a bored or turned metal surface. Roller Burnishing involves cold working the surface of the work piece to improve surface structure

The COBUM series of roller burnishing machines are designed to give a mirror - like finish with a tough, work hardened, wear & corrosion resistant surface. The burnishing is done by Centerless Method

FEATURES

  • Three roll burnishing machine

  • Adjustable for various rod dia.

  • Variable speed control

  • High rate of production

  • Self feeding or plunger type setting

ADVANTAGES

  • Super Surface finish Consistency

  • Improves Surface hardness

  • Skilled operator not required

  • Innovative compact design

  • Low capital investment

  • Low operating cost

  • A cost effective alternative to traditional grinding process

  • High quality Finish of precision products

APPLICATIONS :

  • Valve rods
  • spool
  • High precision guide rods
  • Rotor shafts
  • Mixie & Fan Shaft
  • Gudgeon Pins
  • Piston Rod
  • Lab & Medical Equipments

 


 

 

 

 

MACHINE SPECIFICATIONS

 

 

MODEL

 

 

COBUM 0660HY

COBUM 0645HY

COBUM 0620HY

 

 

 

 

Part Loading Height

900 mm

900 mm

900 mm

Part Loading/Unloading

Manual

Manual

Manual

Max. Rolling Dia.

60 mm

45 mm

20 mm

Max. Plunge Rolling Width

42 mm

42 mm

38 mm

Drive Roll Dia.

140 mm

140 mm

110 mm

Part Clamping Process

HYDRAULIC

HYDRAULIC

HYDRAULIC

Rolling Force adjustable upto

3500 Kgs.

3000 Kgs.

2000 Kgs.

Max. Working Pressure

80 Bar

60 Bar

20 Bar

Max. Rolling Head Stroke

80 mm

65 mm

50 mm

Roll Shaft Speed

50 to 500 RPM (Variable)

100 to 500 RPM (Variable)

600 RPM

Main Drive Motor

5 HP 0-1500 RPM (Variable)

3 HP 0-1500 RPM (Variable)

2 HP 750 RPM

Coolant Tank Capacity

30 Liters

30 Liters

30 Liters

Coolant Pump Motor

0.14 HP

0.14 HP

0.14 HP

Machine Size/Floor Space

1600L x 850W x 1980H

1600L x 850W x 1980H

1100L x 800W x 1850H

Hydraulic Power Unit

2 HP

2 HP

1 HP

Machine Weight in Kgs, Appx.

1400 Kgs.

1300 Kgs.

800 Kgs.

 

Mini Centreless OD Burnishing Machine:

This is a table top machine used for burnishing of Plain or Stepped Shafts of dia 2 to 25 mm.

The machine is used for very high production. The loading & unloading is manual and can be automated.

Applications: small pins, motor rotor shafts, engine valves, spools, piston rods, gudgeon pins etc

        

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