VKM 3.0
VKM 3.1
VKM 3.4

The low cost grinding machines for valves up to 41 mm in stem diameter

Application:
Recommended as accessories to large diesel engines for regrinding the valves in course of the periodical overhauls.

Features:
Machine Base:
Box type monobloc casting with integrated slideway for the workhead.


Grinding Spindle:
The permanently sealed and lubricated grinding spindle is slideably mounted on a swivel plate.The swivel plate is set the the proper angular position by means of a wide spaced scale.
Workhead:
Monobloc work spindle housing with permanently sealed and lubricated spindle bearings. Work spindle fitted with collet chuck for use of high precision collets.
The workhead can be moved along the slideway on top of the machine base to clamp each valve on that part of the valve stem which normally travels in the valve guide. A micrometer feed unit is combined with the workhead to feed the valve head of a valve clamped in the work spindle into the grinding wheel.
Steady:
A selfcentering steady (a VKM 3.1 and VKM 3.4 standard) fits onto the swivel plate for additional support of long stem valves. The combination of collet chucking and steadying ensures perfect alignment of long valves.
Coolant system:
Coolant is delivered to the grinding site by an industrial type flood pump.
The baffled coolant tank is housed in the machine base and can be drawn out for ease of cleaning.

Specifications:

VKM 3.0

VKM 3.1

VKM 3.4

Capacity:

. . .

Valve stem diam.

mm

9,5-22,5

9,5-32

15,9-41

Max valve head diam

mm

200

200

200

Valve seat angle

deg.

27° - 46°

27° - 46°

27° - 46°

Grinding spindle:

. . .

Wheel diam.

mm

175

175

175

Wheel width

mm

25

25

25

Speed at 50 Hz

rpm

2790

2790

2790

Grinding spindle motor

W

370

370

370

Work spindle:

. . .

Speed

rpm

25

25

35

Work spindle motor

W

34

34

120

Coolant system:

. . .

Coolant capacity

l

5

5

5

Pump motor

W

50

50

50

Electrical system:

. . . .

Supply voltage

V

380 - 440

380 - 440

380 - 440

(3 ph. 50/60 Hz)

or V

220 - 254

220 - 254

220 - 254

Max consumption

W

500

500

600

Dimensions & Weight:

. . .

Length

mm

850

850

850

Width

mm

680

680

680

Height

mm

400

400

450

Net. weight

approx. kg

90

95

100



.

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