(1)

CNC FEED MECHANISM
On both grinding and dressing feed, large size precision Ball Screws directly connected to AC servo motors bring precise and steady infeed travel greatly cutting down maintenance time. CRT screen displays feed position and speed enabling simple and easy operation for every person.
Feed amount and speed can be set at minimum unit of 0.5 microns to resize an optimum grinding condition easily.

(2)

WORK HEAD INFEED SYSTEM
The Work head slide performs infeed motion while the Wheel head which is usually the largest vibration source is rigidly mounted onto the machine bed. This arrangement achieves stabilized grinding accuracy.

(3)

HYDROSTATIC SPINDLE BEARING
Wheel spindle is supported by IZK's unique Hydrostatic bearing system which contribute to a minimum spindle runout and semi-permanent bearing life. A hydrostatic pump/tank unit with accumulator and oil coolant is provided in standard accessories.

(4)

AUTOMATIC WHEEL BALANCING SYSTEM
An excellent and sensitive Auto-balance system is provided as an option to eliminate troublesome balancing and time loss.

(5)

LOADING DEVICE
The most popular loading and unloading device is double arm type which is usually combined with shoe-magnet type work support. It consists of a loading arm and unloading arm driven by a simple rack-pinion mechanism giving quick, steady work movement and less maintenance. According to type and size of work pieces, some other types of loading are also adopted.

(6)

WORK SUPPORT
For grinding ring type work pieces, We recommend shoe-magnet system. (KN-312B) In this, a strong magnet-chuck holds and rotates the work piece steadily while a pair of shoes support its outside black skin to achieve complete ground roundness and squareness. A built-in type demagnetizer is also installed. For some work pieces other than ring type. IZK designs an optimum support system such as diaphragm chuck combined with a proper loading device.(KN-312A)

(7)

GAUGING UNIT
In process gauge, post process gauge and feedback system can be installed without any difficulty.

(8)

DRESSER
Work piece with different profiles can be dressed by selecting dressers for radius dressing, rotary dressing, profile dressing, lip dressing, and convex radius dressing.

Machine Type

KN-312A

KN-312B

Work piece range(φmm)

OD:10～100,
TRACK:8～95

Work width(mm)

6～50

Track radius(mm)

2～15

Wheel size(mm)

φ500×50～φ300

Wheel rotarion

2250rpm(3600m/min)

Cross feed movement(mm)

135

Cross index feed speed(mm/sec)

0～φ100

Cross index grind speed(μ/sec)

0～φ999

Wheel support type

Hydrostatic bearing or Grease bearing

Work support type

Chuck

Shoe support magnet chuck

Workhead rotation(rpm)

400～3600

Swivel angle(deg)

0～18°(Special 30°)

Dress slide stroke(mm)

70

Sizing

Sizematic or Gaugematic

Dressing

Radius dress,Formed rotary

Loading

Double arm

Wheel spindle motor

5.5kw 4P

Work spindle motor

0.75kw 4P

Feed axis motor(Z-axis)

4.0kw AC servo motor

Dress axis motor(Z-axis)

1.6kw AC servo motor

Hydraulic motor

1.5kw 4P

Hydrostatic pump

0.75kw 4P

Floor space(mm x mm)

2700 x 2225 x 1850

Weight(kg)

4000

Coolant tank capacity

250L

Work pieces

KN-312A:CVJ Inner,Cone,Cup

KN-312B:CVJ Cage,Double Cone,Bearing Outer,
Roller,Rimmed Bush,Oil Splasher

Standard Accessories

Motor
Electric controlls(CNC)
Hydrauric/Pneumatic controlls
Lubrication device
Hand tools
Leveling blocks/bolts
Coolant piping in M/C

Sleeve flange
Demagnetizer unit
Diamond tool
Hydrostatic bearing for wheel head
Hydraulic unit for wheel head
Magnet chuck unit
Radius dressing unit

Special Accessories And Options

Special dresser unit
　Rotary Dress
　Profile Dress
　Convex radius dress
　Side dress
　Lip dress
Coolant tank unit(250L)
High pressure coolant unit
Oil refrigerator for hydrostatic bearing

Inprocess gauge
Feedback system(include post process gauge)
Optional tooling
Gap eliminator
Workhead swivelling angle 30°
Cover interlock
Spare sleeve flange
Auto balance system
Alarm indicate