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VKM 3.0
VKM 3.1
VKM 3.4
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The low cost grinding machines for valves up to 41 mm in stem diameter
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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.
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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.
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Specifications:
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VKM 3.0
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VKM 3.1
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Capacity:
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Valve stem diam.
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mm
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9,5-22,5
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9,5-32
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15,9-41
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Max valve head diam
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mm
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200
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200
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200
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Valve seat angle
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deg.
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27° - 46°
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27° - 46°
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27° - 46°
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Grinding spindle:
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Wheel diam.
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mm
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175
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175
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175
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Wheel width
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mm
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25
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25
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25
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Speed at 50 Hz
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rpm
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2790
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2790
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2790
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Grinding spindle motor
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W
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370
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370
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370
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Work spindle:
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Speed
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rpm
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25
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25
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35
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Work spindle motor
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W
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34
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34
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120
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Coolant system:
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Coolant capacity
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l
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5
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5
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5
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Pump motor
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W
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50
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50
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50
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Electrical system:
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Supply voltage
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V
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380 - 440
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380 - 440
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380 - 440
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(3 ph. 50/60 Hz)
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or V
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220 - 254
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220 - 254
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220 - 254
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Max consumption
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W
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500
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500
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600
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Dimensions & Weight:
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Length
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mm
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850
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850
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850
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Width
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mm
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680
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680
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680
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Height
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mm
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400
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400
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450
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Net. weight
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approx. kg
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90
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95
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100
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