Both Ends of a Long Part, One Cycle

The ML-600LT is a long-bed linear way CNC turning center with sub-spindle, built for a specific problem: long parts that need machining on both ends. Without a sub-spindle, that means re-clamping a long, heavy workpiece, with more alignment risk than almost any other part type. On the ML-600LT, the 6-inch sub-spindle takes the part from the main spindle and finishes the back end in the same cycle, up to about 1,210 mm of machining length on the 10-inch main chuck.

The linear way construction keeps the long traverses fast. For high length-to-diameter parts, the steady rest is configured for your workpiece before the machine ships, and the main-to-sub transfer is proven on your part at our factory. C-axis and live tooling are optional.

ML-600LT or Its Siblings?

Within the linear way sub-spindle family, the ML-600T covers parts to about 475 mm, the ML-600MT to about 710 mm, and the ML-600LT reaches about 1,210 mm for genuinely long work.

Long parts that also carry off-center features? The ML-600LTY adds Y-axis with live tooling standard. Long-part turning without back-end machining? The ML-600L keeps the full 1,280 mm envelope. See also: Long-Bed CNC Turning Centers.

A: What is the maximum machining length of the ML-600LT?

A: Up to 1,210 mm with the standard 10-inch main chuck (1,190 mm with the optional 12-inch). The sub-spindle carries a 6-inch chuck with a Φ56 mm bore, running up to 6,000 rpm.

Q: When should I choose the ML-600LT over the ML-600L?

A: When the long part needs machining on both ends. The LT trades about 70 mm of machining length for the sub-spindle, finishing back faces, threads, and bores in the same cycle instead of a risky second setup.

Q: Does the ML-600LT support a steady rest for slender parts?

A: Yes. For high length-to-diameter workpieces, the steady rest arrangement is configured and tested for your part before the machine ships.

ITEM UNIT ML-600LT
Standard C axis
Capacity
Swing over bed mm Φ600
Swing over saddle mm Φ450
Maximum machining diameter mm Φ420 Φ340
Maximum machining length mm STD: 1,210 (10″);
OPT: 1,190 (12″)
BMT65 STD: 1,190 (10″); OPT: 1,170 (12″)
VDI40 STD: 1,210 (10″); OPT: 1,190 (12″)
Slant angle of bed 30°
Travel Range
X-axis mm 230 (210+20) 218 (170+48)
Y-axis mm –
Z-axis mm 1,330
C-axis ° – 360° (0.001°)
W-axis mm 1,186
Spindle
Spindle speeds rpm Main-spindle
STD: 50~3,500 (A2-8, 75mm 10″); OPT: 50~3,000 (A2-8, 78mm 10″); OPT: 50~2,500 (A2-8, 91mm 12″)Sub-spindle
50~6,000 (6″)
Spindle nose STD: A2-8
Spindle bore diameter mm STD: Φ86 (10″); OPT: Φ91 (10″); Φ105 (12″)
Front bearing inner diameter mm STD: Φ120 (10″); OPT: Φ130 (10″, 12″)
Draw bar diameter mm STD: Φ75 (10″); OPT: Φ78 (10″), Φ91 (12″)
Chuck
Chuck diameter inch STD: 10″+6″ (W); OPT: 12″+6″ (W)
Turret
Type STD: Hydraulic
OPT: Servo
Live-tooling
Stations pcs STD: 10; OPT: 12 STD: 12
Model STD: LS-240
OPT: LS-240SV
LS-200DTR
Square tool shank mm 25 x 25
Boring bar shank diameter mm Φ40
Indexing time (0~180°) sec LS-240: 1.4 (10T), 1.5 (12T); LS-240SV: 0.7 (12T) 1.4
Live Tool
Spindle Speeds rpm – 50~4,000
Feed Rate
Rapid Traverse m/min X: 30, Z: 30, W: 24, C: 200rpm
Tailstock
Type –
Quill diameter mm –
Quill bore taper –
Quill travel mm –
Tailstock travel mm –
Motors
Main-spindle kw STD: α30ip (15/18.5); OPT: α22ip (11/15)
Sub-spindle kw α6 (5.5/7.5)
Live-tool kw – α3/10000 (3.7/5.5)
Axis servo motor kw X: α12 (3.0), Z: α12 (3.0), W: α12 (3.0)
Hydraulic oil pump kw 1.5
Chip conveyor kw 0.2
Coolant pump kw 0.8
Accuracy
Positioning mm ±0.005
Repeatability mm ±0.004
Power
Requirements KVA 380-415/220V 30KVA
Machine size
Height cm 186
Floor space (WxD) cm 524 x 214
Packing (w/conveyor) cm 521 x 229 x 221
Net weight (w/conveyor) kg 7,560
Gross weight (w/conveyor) kg 8,020

Specifications

Resources

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