CNC Precision Automatic Lathe
Sliding headstock type automatic lathe that encompasses the entire process
12-station turret + Gang type tool post + Back spindle
Complex-shaped parts can be
from bar stocks
■ 12-station turret with independent drive mechanism
■ Cycle time drastically shortened using three-path control
■ Complete machining from bar stock
BH20, BH20Z: Max. 35 tools BH38: Max. 34 tools
■ Powerful main-spindle and back-spindle motors
■ Many NC features are provided as standard.
■ Automatic programming system for BH (optional)
BH20
Z1
Y3
Y3
X1
X3
Y1
Z3
X3
X2
BH38
2
Z2
Z3
BH20Z
BH38
machined
Photo: BH20/BH20Z
Machining example
Material SUS303
Bar stock diameter φ25
Conventional model
Simultaneous machining time
１８
Ｍ１６ １
４
230sec.
Back spindle
φ２４
φ２２
φ８
±０．０３
φ３
φ１７
６
Main
spindle
−０．０１
−０．０３
４５
(１０) ５ ５ １０
２−Ｍ４
(３０)
４０
BH38
Simultaneous machining time
Main
spindle
７０
160sec.
Back spindle
3
The direct-drive rotary guide bushing enables higher spindle speed.
BH20/BH20Z
■Maximum spindle speed: 10,000min-1 ■Machining stroke: 170mm
Improved geometric accuracy, dimensional accuracy, and surface roughness with high speed and quiet operation
Guide bushing type or guide-bushing-less type selectable
according to the workpiece (Option) BH20/BH20Z
Guide-bushing-less
structure
Guide bushing spindle
structure
■Stationary guide bushing ■Guide-bushing-less unit
■Direct-drive rotary guide bushing device
■Possible to switch between the guide bushing type and guide-bushing-less type
so the most suitable operation for the workpiece length can be chosen.
■The spindle without a guide bushing does not require ground bars, enabling high
speed and high precision when machining cold drawn bars.
The shortest possible remnant length is 30 mm.
３０ mm
１８０ mm
Remnant length
(Carrier type rotary guide bushing device)
Remnant length
"Double Spindle" structure enables powerful machining that produces blue chips.
BH38
"Double Spindle" structure
■The double spindle structure that integrates the guide bushing and the spindle
(in perfect synchronization) enables high accuracy and powerful machining.
■Since water-soluble coolant can be used, there is no danger of fire or greasy
fumes even when heavy duty machining is performed.
■Short remnant length (150 mm + workpiece length)
■3 times faster feed rate, 3 times greater productivity
Equipped with more powerful main-spindle
and back-spindle motors that increase
machining capability. BH38
Torque
[N・m]
Main spindle torque chart
80
30min. S3 60％
Torque
[N・m]
Back spindle torque chart
80
Applicable machining area
60
60
Applicable area for
continuous machining
40
49Nm S3 10％
40
20
Main spindle motor: 7.5/11kW
Back spindle motor: 3.7/5.5kW
0
0
1,500
2,000 4,000 6,000 8,000
Motor speed[min-1]
4
29Nm S3 40％
20Nm S1 Cont.
20
0
0
1,070
1,800
2,000
11
7
5,000
4,000
6,000
Motor speed[min-1]
1.8
1.3
8,000
Overrapped machining with the back spindle
(built-in motor drive)
■Improved rotation and phase synchronization
accuracy with the main spindle
■The main/back spindle follow-up function enables
rounding cut-off.
BH20/BH20Z back spindle
Shortened indexing time
Higher rigidity of rotary tools
■Turret indexing time by the servo motor: 0.3 sec
■Chip-to-chip time: 2 sec (4 sec on the conventional model)
■Non-lift indexing turret reduces mechanical shocks.
■20% increase in productivity thanks to enlarged
drive shaft and bearing.
■Bore diameter on turret: 40 mm (32 mm on conventional models)
Independent drive
3
5
５
４
３
６
7
6
７
１１
１０
９
BH20/BH20Z/BH38
4
１
８
１
１２
2
8
２
■Quiet operation, energy saving
and improved machining accuracy
by less influence from thermal
distortion on turret.
■Rotary tools can be mounted
on all 12 stations.
Conventional model
5
Shorter cycle time under three-path control
■A variety of simultaneous machining styles available
Back spindle - Turret
Main spindle - Turret
Ｘ２
Ｚ２
Ｚ１
Ｚ１
Ｘ１
Main spindle - Gang type tool post
Back spindle - Rear tool post
Ｚ２
Ｚ２
(1) Simultaneous drilling
(front, back)
BH20/BH20Z/BH38
Ｘ１
(2) Simultaneous turning
(front, back)
BH20/BH20Z/BH38
(3) Simultaneous drilling
(cross, back)
BH20/BH20Z/BH38
Ｘ３
Ｘ３
Ｘ３
Ｘ３
Ｚ３
Ｙ３
Ｚ１
Ｘ１
Ｘ２
Ｚ２
Ｘ２
Ｙ１
Ｚ２
Ｚ１
Ｘ１
Ｘ２
Ｘ２
Ｚ２
Ｘ１
Ｚ２
Ｘ１
(4) Balance turning +
Back spindle machining
BH20/BH20Z/BH38
6
(5) Simultaneous cross drilling/end milling + (6) Simultaneous turning/drilling + (7) Front off-center drilling + cross drilling +
Back spindle machining
Back spindle machining
Back spindle machining
BH20/BH20Z/BH38
BH20/BH20Z/BH38
BH20Z/BH38
X/Y/Z-axis movement of turret
■Z-axis added turret increases machining capability
Balance turning
BH20Z/BH38
Z３-axis movement
Long thread cutting
BH20Z/BH38
Z３-axis movement
Ｚ３
Ｚ３
Ｚ１
Ｚ１
Longitudinal adjustment with
NC control
Long thread cutting
(４０ mm or longer) is possible.
Generously opening rear door is
provided as standard
■Heavy components such as rotary tools can be mounted
and dismounted at the rear of the machine.
■The index selector switch for the turret is located on the
rear side of the machine to ensure easy operation.
7
Optimized tooling with the help of a BH automatic programming system (optional)
Even with multi-path control, multi-axis control, or
complex-shaped parts, a program with the optimal
tooling and the shortest cycle time can be created.
Tsugami's machining know-how (machining processes,
machining conditions, etc.) and the highest priority
allocated to the matching of the machine hardware
and software results in a system that enables novice
programmers to create standardized, high quality
programs, even for complex products that demand
accurate results.
■Create NC programs in a short period of time.
No complicated entry is required.
Create processes and NC programs automatically by simply
inputting geometrical data and tool data. The interactive
system helps you create programs easily and quickly.
■Simple operations
Geometrical data can be configured using a building block
method (no acquisition of CAD skills required), and in
addition, only minimal tool data entry is required.
Step 1: Tool definition
Step 2: Work shape definition
Tool definition as like an actual mechanical
setting, inputting tool type, tool width, drill dia.,
setting position, etc. for each tool.
No CAD operation required for work shape
definition.
By building up simple shapes (building block
method), geometry can be created with ease in a
drastically shortened time.
Even a novice can quickly learn the input method.
NC program
Cycle time
■Automatic calculation of cycle time
The cutting time and idle time are calculated automatically,
which are helpful for the user to further shorten the cycle
time.
＊The calculated cycle time is a reference value.
■3D simulation for operation checks
The interference check function generates NC
programs that have an optimal tool path free
from interference.
The 3D simulation function enables the user to check the
operations from any angle.
3D simulation
■Interference check function
The cycle time is calculated automatically,
and cutting time/idle time as well as
process time for each path system can be
displayed.
It is possible to check the created/edited NC program for
interference.
Name
Specifications
Applicable models
BH20/BH20Z/BH38
Ⓡ
OS
Ⓡ
Windows 2000 Windows XP
(with Internet Explorer 4.0 or above and OpenGL library installed)
Computer
PC/AT compatibles (DOS/V machines)
CPU
Intel Celeron 2.0 GHz or more
Using the 3D simulation function, main
spindle and back spindle machining
operations can be checked from any angle.
Ⓡ
Many optional NC features on conventional model are provided as standard.
Name
8
BH20/BH38
Name
BH20/BH38
Machine Options
Chasing function
Standard
Multiple repetitive cycle
Standard
Work catcher (including work conveyor)
Continuous thread cutting
Standard
Expanded program editing
Standard
Work front discharge
Manual pulse generator
Standard
Polar coordinate interpolation
Optional
Work rear discharge
Memory card input/output interface
Standard
Cylindrical interpolation
Optional
Chip conveyor
RS232C input/output interface
Optional
Direct drawing dimension input
Standard
Automatic fire extinguisher
Background editing
Standard
Inch/metric conversion
Standard
Oil mist collector
Run time/parts number display
Standard
Canned cycle for drilling
Standard
High-pressure pump (750 W)
Custom macro
Standard
Rigid tap (main spindle, back spindle)
Standard
Drilling head
Constant surface speed control
Standard
Rotary tool rigid tap (for tool on the turret)
Optional
2-spindle cross drilling head (BH38 only)
Spindle synchronous control
Standard
Rotary tool rigid tap (for cross drill on the tool post)
Optional
Angular drilling head
Tool geometry / wear offset
Standard
Cut-off detection (differential)
Standard
Helical hobbing head (1)
Programmable data input
Standard
Spindle speed fluctuation detection
Standard
Milling head
Chamfering and corner R
Standard
Abnormal load detection
Optional
Turret Tooling System
Item
External View
Turning
holder
Item
Function
●Cutting tools
Shank (square)
Shank (square)
Shank (square)
Position
Drilling head
□２０×１２５ (ＢＨ３８)
□１６×１０５ (ＢＨ２０)
□１２×８５ (ＢＨ２０)
Rear turret
External View
外 観
Function
Max. shank dia.
Max. tap size
Collet
Speed
Double-turning
holder
Front holder
●Cutting tools
Shank (square)
Shank (square)
Shank (square)
Position
□２０×１２５ (ＢＨ３８)
□１６×１０５ (ＢＨ２０)
□１２×８５ (ＢＨ２０)
Rear turret
●Cutting tools
Shank (square)
Shank (square)
Position
□２０×１２５
（ＢＨ３８)
□１２×８５
（ＢＨ２０)
Rear turret
●Cutting tools
Shank dia.
Shank dia.
Position
φ３２
（ＢＨ３８)
φ２５
（ＢＨ２０)
Rear turret
●Cutting tools
Shank dia.
Shank dia.
Position
φ３２
（ＢＨ３８)
φ２５
（ＢＨ２０)
Rear turret
High speed
drilling head
Collet
Speed
Whirling
head
(Reverse mounting is prohibited.)
Drill holder
Max. shank dia.
Helical gear
hobbing head
φ１０ｍｍ
Ｍ６
ＡＲ１６ (Alps Tool)
ＥＳＸ１６ (Schaublin)
ＥＲ１６ (ＲＥＧＯ−Ｆ
ＩＸ)
２００ to ６,０００ｍｉ
ｎ-1
φ７ｍｍ
ＡＲ１１ (Alps Tool)
ＥＳＸ１１ (Schaublin)
ＥＲ１１
（ＲＥＧＯ−Ｆ
ＩＸ）
２００ to ７,７９０ｍｉ
ｎ-1
Maximum turning diameter φ１３
MAX２．
Depth of cut
５
ＢＨ２０
：６０ (Z３ stoke)
Cutting length
ＢＨ３８：１４０ (Z３ stoke)
Inscribed circle dia.…φ９．
５２５
Chip
Thickness…４．
７６
Cutter spindle inclined angle ±１０°
Cutting speed MAX２５１ｍ/ｍｉ
ｎ-1 (φ２０)
Speed
２００ to ４,０００ｍｉ
ｎ-1
Head inclined angle θ (Main spindle) ５°≦ θ ≦−３０°(back spindle)
Speed
２００ to ４,０００ｍｉ
ｎ-1
Restrictions Adjacent holder mounting disabled
(Reverse mounting is prohibited.)
2-drill holder
Helical gear
hobbing head
Head inclined angle θ (Main spindle) ５°≦ θ ≦−３０°(back spindle)
Speed
２００ to ４,０００ｍｉ
ｎ-1
Restrictions Adjacent holder mounting disabled
(Reverse mounting is prohibited.)
Powered cross
drilling head
Max. shank dia.
Max. tap size
Collet
Speed
Cross drilling
head
Max. shank dia.
Max. tap size
Collet
Speed
High speed
cross drilling
head
Max. shank dia.
Collet
Speed
φ１６ｍｍ
Ｍ１０
AR２５ (Alps Tool)
ESX２５ (Schaublin)
ＥＲ２５ (ＲＥＧＯ−Ｆ
ＩＸ)
１００ to ２,０００ｍｉ
ｎ-1
φ１０ｍｍ
Ｍ８
ＡＲ１６ (Alps Tool)
ＥＳＸ１６ (Schaublin)
ＥＲ１６ (ＲＥＧＯ−Ｆ
ＩＸ)
２００ to ５,０００ｍｉ
ｎ-1
φ７ｍｍ
ＡＲ１１ (Alps Tool)
ＥＳＸ１１ (Schaublin)
ＥＲ１１ (ＲＥＧＯ−Ｆ
ＩＸ)
２００ to ７,７９０ｍｉ
ｎ-1
Milling head
High speed
angular drilling
head
Max. cutter dia. φ７５ｍｍ
ｎ-1
Cutter spindle speed １００ to ２,７００ｍｉ
Max. shank dia.
Swiveling range
Collet
Speed
Angular drilling
head
(For BH38 only)
Max. shank dia.
Max. tap size
Swiveling range
Collet
Speed
Power drilling
head
φ７ｍｍ
０°to ９０°
ＡＲ１１ (Alps Tool)
ＥＳＸ１１ (Schaublin)
ＥＲ１１ (ＲＥＧＯ−Ｆ
ＩＸ)
２００ to ７,８２０ｍｉ
ｎ-1
φ１０ｍｍ
Ｍ６
０°to ９０°
ＡＲ１６ (Alps Tool)
ＥＳＸ１６ (Schaublin)
ＥＲ１６ (ＲＥＧＯ−Ｆ
ＩＸ)
２００ to ５,０００ｍｉ
ｎ-1
●Main spindle ●Back spindle
Max. shank dia. φ１６ｍｍ
φ１３ｍｍ
Max. tap size
Ｍ１０
Ｍ１０
ＡＲ２５ (Alps Tool) ＡＲ２０ (Alps Tool)
Collet
ＥＳＸ２５ (Schaublin) ＥＳＸ２０ (Schaublin)
Speed
１００ to ２,０００ｍｉ
ｎ-1
ＥＲ２５ (ＲＥＧＯ−Ｆ１Ｘ) ＥＲ２０ (ＲＥＧＯ−Ｆ１Ｘ)
9
Tooling zone
BH20/BH20Z
Stroke＝７０
３３４
１３ to ２７３
Stroke＝２６０
３５
３５
※５１ to １１１
Stroke＝６０
２２０
３７．
５
２３０
−２ to ２９
（Stroke＝３１）
２９
Max. machining
length １７０
１６４
(Direct-drive rotary GB)
３７．
５ ４−φ２５ ８１．
５
６５
１
１３
Stroke＝２８５
(standard GB type)
２
Max. machining
length ８０
１４６
１９３
１９８ to ３０８（Stroke＝１１０）
２３０
Reference tool
position
３-spindle cross
drilling head (Standard)
４６．
８４
(８１．
５)
Max. main spindle
standby position
２
３３２
３０
４４
１８０
Direct-drive rotary GB (optional)
３０
３５．
１６
３０
１０
Reference tool position
２１６
Stroke＝２２６
Max. machining length ４５
□１２
Collet chuck end face
Guide-bushing-less unit (optional)
※ Z3 axis (BH20Z only)
BH38
Stroke＝１００
Max. machining length＝２５０
９４ ２０
２１
Stroke＝３００
５０
５０
６8 (50 to １８５)
Stroke＝１35
５０ ４５ ３６３６３６３６ ５
φ８２
５７
５４
φ１０
３０
Stroke＝３８５
２０
２９ to ８４
（Stroke＝５５）
φ１０
２１
２５０
□
１６
４７ ４７
３ １１３
φ３８
１３５
８５
２００ to ３３５
(Stroke＝１３５)
２２０
２３０
１２
Stroke＝２６４
ＭＡＸ
１５０
２-spindle cross drilling head (AR１６×２) (Optional)
３-spindle cross drilling head (AR１１×３) (Optional)
10
Machine specifications (Standard)
Item
BH20
BH20Z
BH38
φ8 to φ38.1 ｍｍ
φ3 to φ20 mm
Working barstock diameter
80 ｍｍ (Carrier type rotary GB)
250 ｍｍ
170 ｍｍ (Direct-drive rotary GB) OP
Max. machining length
45 ｍｍ (GB-less type) OP
Main spindle
Machining range,
machining capacity
Max. drilling diameter
φ10 ｍｍ
Max. tapping size
φ16 ｍｍ
Ｍ8
M14
Max. barstock diameter
φ20 ｍｍ
φ38 ｍｍ
Back spindle Max. drilling diameter
φ10 ｍｍ
φ16 ｍｍ
Max. tapping size
Front tool post
Turret
Max. cross drilling diameter
Ｍ8
M12
φ8 ｍｍ
φ10 ｍｍ
Max. cross tapping size
Ｍ6
Ｍ6
Max. rotary tool drilling diameter
φ10 ｍｍ
φ16 ｍｍ
Max. rotary tool tapping size
Main spindle speed
Ｍ8
M10
200 to 10,000 min-1
200 to 5,000 min-1
Back spindle speed
200 to 12,000 min-1
200 to 7,000 min-1
200 to 8,000 min-1
200 to 5,000 min-1 (Optional)
Cross drill speed on front tool post
200 to 8,000 min-1
Rotary tool speed on turret
C axis
Main spindle indexing
5°
Back spindle indexing
C axis (optional)
Turret
Machine
Total tool
storage
capacity
Front tool post
12 stations
Turning
4
5
Cross drill
3
2 (Optional)
4
3
Turret
12 ｍｍ × 12 ｍｍ × 85 ｍｍ
20 ｍｍ × 20 ｍｍ × 125 ｍｍ
Front tool post
12 ｍｍ × 12 ｍｍ × 85 ｍｍ
16 ｍｍ × 16 ｍｍ × 125 ｍｍ
Back tool post
Tool size
Rapid
traverse
rate
Motors
Z3
−
18 m/min
X3
20 m/min
Y1, Z1, X2, Z2
Controlled axes
24 m/min
7 axes
2.2/3.7 kＷ
Back spindle
2.2/3.7 kＷ
24 m/min
8 axes
3.7/5.5 kＷ
1.4 kＷ
Rotary tool speed on turret
0.39/0.62 kＷ (50/60Ｈｚ)
3Ｗ
Lubricating oil pump
5,800 kg
4,500 kg
45 ＫＶＡ
30 ＫＶＡ
Compressed air requirement
0.5 ＭＰa or more
Air discharge rate
Width x depth x height
Z1, Z2, Z3
1.0 kＷ
Coolant pump
Power source
and other
20 m/min
7.5/11 kＷ
Cross drill on front tool post
Power source requirement
12 m/min
8 axes
Main spindle
Net weight
Y3
X1, Y1, X2, X3
12 m/min
X1, Y3
100 NL/min
2,730 x 1,790 x 1,700
2,480 x 1,585 x 1,733
NC Specifications (Standard)
Item
Specification
NC unit
FANUC 31i-B
Axis names
Least input increment
Least command increment
Maximum programmable dimension
Interpolation method
Cutting feedrate
Feedrate override
Dwell
ABS/INC command
X1, Y1, Z1, X2, Z2, X3, Y3, Z3
0.001 mm (X1, X2, X3 axes in diameter)
X1, X2, X3 axes: 0.0005 mm, other: 0.001 mm
±8 digits
Linear/Circular
1 to 6,000 mm/min
0 to 150% in 10% increments
G04 0 to 99999.999
X, Y, Z: absolute, U, V, W: incremental
Tool offset value
±6 digits
Tool offsets pairs
Sum of all paths: 200 pairs
LCD/MDI
Tape storage size
Number of registerable programs
10.4" color LCD
Sum of all paths: 256 kbytes (equivalent to 640 m tape length)
500
Auxiliary functions
M5 digits
Spindle function
S5 digits
Tool function
T4 digits
11
１８５
(２０)
BH20/BH20Z
１,９１０
２,４８０
３,０４０
５７０
１,７３３
１,０００ (Center height)
(５６０)
４２５
(１６０)
５２０
７００
１,４０５
１,５８５
External View
BH38
６１０
１,１３０
１,２００
２,３３０
(５６３)
８１０
１,７９０
External View
４００
(１００)
２,７３０
８１０
Export permission by the Japanese Government may be required for exporting
our products in accordance with the Foreign Exchange and Foreign Trade Law.
Please contact our sales office before exporting our products.
９８０
１,７００
１,０００
３,３９３
The specifications of this catalogue are subject to change without prior notice.
12-20, TOMIZAWA-CHO, NIHONBASHI,
CHUO-KU, TOKYO 103-0006, JAPAN
Phone
: 03-3808-1172
Facsimile : 03-3808-1175
CAT.NO.E112524.JUN.3T（H）