CNC Lathe

Box Ways

Constant 375B/375C/375D/390B/390D

Macro Micro Tech Inc.

Practical Innovation - from customers, and for customers

Constant 375B/375C/375D/390B/390D

Constant has unique uni-body channel structure at X axis box way (patent) that has high rigidity and is the basis for stable accuracy. High quality grinding like surface is promised on this machine. Sauter (Germany) turret is standard for high accuracy.

MACHINE SPECIFICATIONS

Model 　 Constant  375B Constant  375C  Constant  375D
Capacity
Swing Over Bed mm 600 600 600
Swing Over Saddle mm 285 285 285
Max.TurnableO.D. mm 500 (400  VDI) 500 (400  VDI) 500 (400  VDI)
Max. Turnable Length mm 750 1000 1250
Bar Capacity mm 75 75 75
Spindle
Chuck Size inch 10”(12") 10”(12") 10”(12")
Spindle Speed rpm 3000 (3500) 3000 (3500) 3000 (3500)
Spindle Nose 　 ISO A2-8 ISO A2-8 ISO A2-8
Spindle Motor  KW 15/22 15/22 15/22
Turret
Tool Station   　 12 12 12
O.D. Tool Holder mm 25*25 25*25 25*25
I.D. Tool Holder mm 40 40 40
Travel
X Axis Travel mm 245+20/
270+20(VDI)		 245+20/
270+20(VDI)		 245+20/
270+20(VDI)
Z Axis Travel mm 770 1070 1270
X/Z Rapid  m/min   20/20   20/20   20/20
Tail Stock
Quill Tapper  mm MT#5 MT#5 MT#5
Max. Travel mm 650 900 1150
Quill Diameter  mm 80 80 80
Quill Travel  　 100 100 100
Coolant 
Coolant Tank Capacity Litre 220 220 220
Coolant Motor HP 1.5 1.5 1.5
Weight
Weight kgs 6,200 6,500 6,800
Model 　 Constant  390B Constant  390D
Capacity
Swing Over Bed mm 750 750
Swing Over Saddle mm 400 400
Max.TurnableO.D. mm 700 (600 BMT) 700 (600 BMT)
Max. Turnable Length mm 750 1250
Bar Capacity mm 90 90
Spindle
Chuck Size inch 15"(18") 15"(18")
Spindle Speed rpm 2500 2500
Spindle Nose 　 ISO A2-11 ISO A2-11
Spindle Motor  KW 22/26 22/26
Turret
Tool Station   　 12 12
O.D. Tool Holder mm 32*32 32*32
I.D. Tool Holder mm 50 50
Travel
X Axis Travel mm 360+25 360+25
Z Axis Travel mm 770 1270
X/Z Rapid  m/min   20/20   20/20
Tail Stock
Quill Tapper  mm MT#6 MT#6
Max. Travel mm 700 1200
Quill Diameter  mm 110 110
Quill Travel  　 130 130
Coolant 
Coolant Tank Capacity Litre 250 250
Coolant Motor HP 1.5 1.5
Weight
Weight kgs 7,500 8,500

*Specifications and design are subject to change without notice.

*(   ) means option

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