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Cylinder Boring Machine is mainly use for boring large and deep holes , (such as:cylinder body of locomotive ,steamship,car) - details see: https://www.machineto.com/cylinder-boring-machine-10124727

Precision, fast operation and reliability are the main features of the CB155 and CB155M Cylinder Boring Machines. The two models, dimensionally and structurally alike, only differ in the table drive system manual traverse on the CB155 and power traverse on the CB155M.

Working capacity
Boring capacity	mm (inch)	31 - 155 (1.22” ÷ 6.10”)
Max. boring depth	mm (inch)	350 (13.78”)
Max. milling width	mm (inch)	298 (11.73”)
Max milling area	mm (inch)	200 x 825 (7.87” x 32.48”)
Geometric features
Max spindle head travel (D)	mm (inch)	530 (20.87”)
Distance spundle C/L to column ways	mm (inch)	335 (13.20”)
Useful table surface	mm (inch)	400 x 1000 (15.75” x 39.37”)
Max table traverse	mm (inch)	880 (34.64”)
Max table cross traverse	mm (inch)	100 (3.94”)
Speeds
Spindle rotation speeds (6)	r.p.m.	105 ÷ 210 ÷ 280 (390 ÷ 550 ÷ 780)
Spindle head work feed speed (3), per revolution	mm (inch)	0.06 ÷ 0.12 ÷ 0.18 (0.0024” ÷ 0.0047” ÷ 0.0071”)
Spindle head fast feed, up and down, per minute	mm (inch)	1200 (47.24”)
Table work feed speeds (2), per minute	mm (inch)	52 ÷ 104 (2.05” ÷ 4.10”)
Motor rating
Spindle head work feed and spindle rotation	kw	1.2 ÷ 0.9 (1.6 ÷ 1.2HP)
Fast spindle head traverse, up and down	kw	0.060 (0.080 HP)
Table traverse	kw	0.072 (0.094 HP)
Tool grinder	kw	0.190 (0.250 HP)
Dimensions
Length (A)	mm (inch)	2570 (101”)
Width (B)	mm (inch)	1175 (46.25”)
Height (C)	mm (inch)	1920 (75.59”)
Weight
Approx. weight, unpacked	kg (lbs)	1240 (2731) 1250 (2753)
Approx. weight, ocean packed	kg (lbs)	1540 (3392) 1550 (3414)