Y-Axis Machining in the 15-Inch Class

The BML-800 Y brings Y-axis machining to the heavy end of the lineup: a Φ800 mm swing box way platform with a 15-inch chuck, 925 mm of machining length, and ±80 mm of Y-axis travel, the widest in our turning range. C-axis and live tooling come standard, so flats, cross-holes, and keyways on large flanges, hubs, and short shafts are machined in the same chucking as the turning.

The 60-degree bed inclination and hand-scraped box way carry the rigidity that off-center cutting on heavy parts demands, and the gearbox spindle keeps torque up at large diameters.

BML-800Y or Its Siblings?

Longer parts with the same capability? The BML-800MY reaches 1,925 mm and the BML-800LY extends to 2,925 mm. Turning only? The BML-800S keeps the full 1,000 mm envelope without the Y-axis. Smaller parts? The BML-600 Y family covers the 8-to-10-inch classes (see: Y-Axis CNC Turning Centers).

Q: What is the maximum machining length of the BML-800Y?

A: 925 mm, with a 15-inch standard chuck, Φ800 mm swing, and ±80 mm of Y-axis travel. C-axis and live tooling are standard.

Q: When should I choose the BML-800Y over the BML-600 Y-axis machines?

A: When part size outgrows the 10-inch class. The 800Y steps up to a 15-inch chuck, Φ600 mm machining diameter, and a gearbox spindle built for large-diameter torque.

Q: What is the difference between the BML-800Y and the BML-800S?

A3: The Y adds Y-axis machining with C-axis and live tooling as standard, trading 75 mm of machining length (925 versus 1,000 mm) for done-in-one milled features.

ITEM UNIT BML-800Y
Capacity
Swing over bed mm Φ800
Swing over saddle mm Φ600
Maximum machining diameter mm Φ600
Maximum machining length mm 925
Slant angle of bed ° 60°
Travel Range
X-axis mm 305 (300+5)
Y-axis mm ±80
Z-axis mm 1,150
C-axis ° 360° (0.001°)
W-axis mm –
Spindle
Spindle speeds rpm STD: 50~2,000 (15″);
OPT: 2,500 (12″) / 1,200 (15″) / 1,000 (18″)
Spindle nose STD: A2-11; OPT: A2-8 / A2-15 / A2-15
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: 15″; OPT: 12″ / 15″ Oversize / 18″
Turret
Type Live-tooling (BMT75)
Stations pcs STD: 12
Model 434.025
Square tool shank mm 32 x 32
Boring bar shank diameter mm Φ50
Indexing time (0~180°) sec 1.26
Live Tool
Spindle Speeds rpm 4,000
Feed Rate
Rapid Traverse m/min X: 24, Z: 24, Y: 8, C: 200rpm
Tailstock
Type Automatic
Quill diameter mm STD: Φ125; OPT: Φ150
Quill bore taper STD: MT5 fixed type; OPT: MT5 rotation type
Quill travel mm 160
Tailstock travel mm 1,100
Motors
Main-spindle kw STD: α22 (22/26); OPT: α30 (30/37)
Sub-spindle kw –
Live-tool kw α6/10000i (5.5/7.5)
Axis servo motor kw X/Y/Z – α22 (4.0)
Hydraulic oil pump kw 2.24
Chip conveyor kw 0.2
Coolant pump kw 1.3
Accuracy
Positioning mm X/Z: ±0.005; Y: ±0.003
Repeatability mm X/Z: ±0.004; Y: ±0.003
Power
Requirements KVA 380-415/220V 30 KVA
Machine size
Height cm 256
Floor space (LxW) cm 505 x 229
Packing (w/conveyor) cm 506 x 231 x 252
Net weight (w/conveyor) kg 13,200
Gross weight (w/conveyor) kg 13,980

 

Related BML-800 Y-Axis Configurations

Looking at BML-800Y? Compare with other BML-800 configurations:

  • BML-800MY — Y-axis with live tooling and C-axis
  • BML-800TY — Y-axis with sub-spindle for done-in-one
  • BML-800MTY — Y-axis with live tooling and sub-spindle
  • BML-800LY — Long-bed Y-axis for longer workpieces / extended workpiece capacity
  • BML-800LTY — Long-bed Y-axis with sub-spindle

 

Browse all BML Series turning centers

Specifications

Resources

If you’re an agent or owner of our machines, request access so you can access manuals and error codes here

Related Machines