Centerless grinder
GROMAX Centerless grinder
Economical Series!
RC Series are general purpose centerless grinding machines intended for rapid, accurate grinding of small diameter work. High quality at low cost is one of the outstanding features. They are high-productive, versatile, durable machines with maximum ease of operation and safety design.
Standard Accessories:
1. Standard electrical equipment: 1 set
2. Centerless grinding wheels and fl ange: 1 set
3. Regulating wheel and fl ange: 1 set
4. Infeed work rest and carbide blade: 1 set/ 1 pc
5. Thrufeed work rest and carbide blade: 1 set/1 pc
6. Hydraulic oil cooling fan: 1 set
7. Standard coolant tank with pump: 1 set
8. Hydraulic tank with pump: 1set
9. Diamond tool for turing: 2 pcs
10. Work lamp: 1 set
11. Tool box with spanners, screwdrivers, etc.: 1 set
12. Wheel fl ange extractor
13. Workpiece pressor
Optional Accessories:
1. Wheel balancing stand and arbor.
2. Hydraulic work ejector for infeed grinding.
3. Manual work feeder for infeed grinding.
4. Automatic Infeed attachment.
5. Automatic loading attachment for thrufeed grinding (Magazine Type).
6. Automatic loading attachment for thrufeed grinding (Hopper Type).
7. Unloading attachment for thrufeed grinding.
8. Supporter for long bar grinding.
9. Magnetic coolant separator.
10. Paper fi lter.
11. Hydrocyclone coolant fi lter.
12. Profi le template.
13. Automatic loading & unloading attachment for infeed grinding.
14. Vibratory feeder for thrufeed grinding.
15. Jig Hook.
16. Oil cooler.
17. Rotary dressing unit.
18. Jig crane for grinding wheel.
CNC centreless grinding machine
JUNKER CNC centreless cylindrical grinding machine
Machine concept
Performance profile
The BB 10 CNC centreless cylindrical grinding machine has been further developed to take advantage of the latest advances in grinding technology. Practical experience, the latest design principles, and the most modern CNC technologies have all been employed to meet the exact needs of the machine operator. High efficiency both for large series production and for small batches through fast process sequences.
Design characteristics
• Compact machine layout with high static, dynamic and thermal stability.
• Precision grinding spindle on one-sided hydrodynamic bearings.
• Systems for dressing grinding and control wheels.
Performance profile
• Grinding operations: through-feed grinding, plunge grinding
• Grinding programs: manual, automatic
• Truing programs: manual, automatic with compensation
Workpiece data
Workpiece diameter: .. . . . . . . . . . . . 3 – 100 mm
Workpiece length: . . . . . . . . . . . . . . . . variabel
Grinding spindle unit
Grinding wheel dimensions (DxBxd): . . 500×200x305 mm
Control wheel dimensions (DxBxd): . . . 300×200x127 mm
Drive power, Standard: . . . . . . . . . . . . . . . . . 22 kW
Circumferential speed: . . . . . . . . . . . . max. 45 m/s
Resolution of the infeed axes: . . . . . . . 0,0005 mm
Machine data
Feed of grinding and control heads: . . . X1/X2-axis, CNC
Feed of diamond grinding-wheel dresser: . . U1-axis, CNC
Longitudinal feed of grind.-wheel dresser: . W1-axis, CNC
Feed of diamond control-wheel head: . . . . . U2-axis, CNC
Longitudinal feed of contr.-wheel dresser: . W2-axis, CNC
Rotational speed of control-wheel spindle: . . . . SP2-axis
Dimensions of machine
(B x D x H): . . . . . . . . . . . . . . . 3.190 x 4.035 x 2.200 mm
Weight of machine: . . . . . . . . . . . . . . . . . . . ca. 4.800 kg
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