Item Description
This machine is widely used in boring cylinder sleeves of ship engines, diesel locomotive engines, large size automobile engines and diesel engines, as well as various high precision holes of other workpiece. Spindle speed is stepless . Automatically definite direction stop tool.
This machine is widely used in boring cylinder sleeves of ship engines, diesel locomotive engines, large size automobile engines and diesel engines, as well as various high precision holes of other workpiece. Spindle speed is stepless . Automatically definite direction stop tool.
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Model
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Units
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T7220B
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T7226
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T7240
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Max.boring diameter
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mm
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Φ200
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Φ260
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Φ400
|
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Max. boring depth
|
mm
|
500
|
500
|
750
|
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Milling cutter-head diameter |
mm
|
-
|
-
|
-
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Max. Milling area(L*W)
|
mm
|
-
|
-
|
-
|
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Spindle speed(stepless speed change for frequency conversion) |
r/min
|
53～840
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53～840
|
50～1000
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Spindle feed travel speed |
mm/min
|
0.05～0.20
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0.05～0.20
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6～3000
|
|
Distance from spindle axis to carriage vertical plan |
mm
|
315
|
315
|
500
|
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Table longitudinal travel |
mm
|
900
|
900
|
1600
|
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Table longitudinal travle speed |
mm/min
|
|
|
6～3000
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|
Table latirudinal travel |
mm
|
100
|
100
|
300
|
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Boring dimensional accuracy |
|
IT7
|
IT7
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IT7
|
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Milling dimensional accuracy |
|
-
|
-
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IT8
|
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Roundness
|
mm
|
0.005
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0.005
|
0.008
|
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Cylindricity
|
mm
|
0.02/300
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0.02/300
|
0.02
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Boring roughness
|
|
Ra0.8-1.6
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Ra0.8-1.6
|
Ra1.6
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Milling roughness
|
|
-
|
-
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Ra1.6-Ra3.2
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Overall dimensions
|
mm
|
2250*1588
*2335
|
2250*1588
*2335
|
2281*2063
*3140
|
|
N.W/G.W
|
kg
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3300/3800
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3300/3800
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7500/8000
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