Introducing the ultra-short high-speed E3000i spindle series
Taking CNC automatic
lathes to its new heights
Significant reduction of takt time
for precision parts
features Features of the E3000i Series
ELECTRIC SYSTEM
Various control functions realized by electric motor technology
Control of rotation speed, visualization of load factor,
advanced adaptability to automation and stable
machining performance.
ULTRA-SHORT BODY
Ultra-short body design
Ultra-short body design with a min. length of 98.4 mm.
●When mounting on CNC automatic lathes.
・Can be mounted in a narrow machining chamber
・Recommended as a new option for rotary tools
●When mounting on special purpose machines.
・Enables downsizing of the dedicated machine itself
HIGHER POWER
Realizes higher power
than ever before
Increased max. output from 150 W to 350 W.
Expended range of processing.
*Compared to iSpeed3 series having
the smallest body size to date at Nakanishi.
SUPERIOR DURABILITY
Provides higher durability
than rotary tools and
speed increasing spindles
Solves the challenges encountered at work sites by
minimizing vibration and heat generation, and higher
durability.
the possible What the E3000i series can achieve.
Benefits realized from mounting high-speed motor
spindles on a CNC automatic lathe
E3000i series
LINEUP
MOTOR SPINDLES
Targets
Precision machining of medical parts (titanium,
stainless steel) and electronic parts (brass, copper,
aluminum)
01
Flange type motor spindle for CNC automatic lathe
BMF-3160-CTZ
60,000 min⁻¹ high-speed motor spindle
Specifications
Code No.
7923
Model
BMF-3160-CTZ
O.D.
φ31 mm
Motor speed
60,000 min ⁻¹
Max. power
350 w
Spindle accuracy
within 1 μm
Collet
CHA Group
(ø0.5-ø4.0 mm)
The minimum cord bending radius
60 mm
Net weight
604 g
*Collet is sold separately.
Torque and power curve
Dimensions
Case studies
case 01
Cincom L20
R2 Ball End Mill Brass Cutting
Mounting on Cincom L20
R2 Ball End Mill Brass Cutting
After rough cutting with a standard rotary tool (GSC1310), finish cutting was performed with a Nakanishi high-speed motor spindle (BMF-3160-CTZ). 60,000 min⁻¹ maximum speed can be realized by upgrading the Cincom's standard rotary tool and increasing speed spindle to an electric system. In comparison with the standard rotary tool, the feed rate is 10 times faster.
| Machine | CNC automatic lathe (CITIZEN MACHINERY CO.,LTD. / Cincom L20VII LFV) |
|---|---|
| Workpiece material | Brass (C3604) |
| Tool | R2 ball end mill (NS TOOL CO.,LTD. / DRB230 R2×12) |
|
Conventional conditions (Standard rotary tool) |
Nakanishi's proposed conditions | |
|---|---|---|
| Cutting speed [m/min] | 75 | 754 |
| Rotation speed [min-1] | 6,000 | 60,000 |
| Feed rate［mm/min］ | 360 | 3,600 |
| Feed per blade [mm/tooth] | 0.03 | 0.03 |
| Depth of cut (ap × ae) (mm) | 0.03 × 0.06 | 0.03 × 0.06 |
case 02
Machining Center × Flange Type Spindle
R0.75 mm Ball End Mill Machining
Cutting performance comparison with machining center
R0.75 mm Ball End Mill Machining
High-speed cutting with R0.75 ball end mill against plastic mold steel: PD613 (56HRC).
| Machine | Sodick (MC430L) |
|---|---|
| Workpiece material | Steel for plastic molds / PD613 (56HRC) |
| Tool | Nissin tool MACH225SF R0.75 (2 flutes) |
| Machining forms | (1) Contour machining (rough machining) (2) Scanline machining (medium finish) |
| Conventional conditions (Standard rotary tool) |
Nakanishi's proposed conditions | |
|---|---|---|
| Cutting speed [m/min] | 94 | 198 |
| Rotation speed [min-1] | 20,000 | 42,000 |
| Feed rate［mm/min］ | 1,200 | 2,600 |
| Feed per blade [mm/tooth] | 0.03 | 0.03 |
| Depth of cut (ap×ae) [mm] | Rough machining 0.1 × 0.2 mm Semi-finishing 0.02 × 0.03 mm |
Rough machining 0.1 × 0.2 mm Semi-finishing 0.02 × 0.03 mm |
| Machining time | Rough machining / 1 h 57 min 00 sec Semi-finishing / 1 h 18 min 26 sec Total / 3 h 15 min 26 sec |
Rough machining / 59 min 01 sec Semi-finishing / 39 min 09 sec Total / 1 h 38 min 10 sec |
case 03
Cincom L32
φ2.5 × 7.5 mm Drilling
Mounting on Cincom L32 Drilling
φ3.0 mm dia. x 9 mm dia.
φ3.0 mm dia. x 9 mm dia. drill processing for aluminum (A5052). Compared to conventional conditions (standard rotary tools), the high-speed rotation increases the feed rate by 3.6 times and improves machining efficiency.
| Machine | CNC automatic lathe (CITIZEN MACHINERY CO.,LTD. / Cincom L32-1M10) |
|---|---|
| Workpiece material | Aluminum (A5052) |
| Tool | NACHI DLCDR2.5 |
| Conventional conditions (Standard rotary tool) |
Nakanishi's proposed conditions | |
|---|---|---|
| Cutting speed [m/min] | 47 | 196 |
| Rotation speed [min-1] | 6,000 | 25,000 |
| Feed per revolution［mm/rev］ | 0.046 | 0.040 |
| Feed rate［mm/min］ | 276 | 1,000 |
| Load meter | - | Yellow 1 |
Machining Conditions
▼Drill
| Material | Tool | Hole depth (mm) |
Feed rate (m/min) |
Motor speed (min⁻¹) |
Feed per revolution (mm/rev) |
Machining time (mm/min) |
Load meter |
| A5052 | NACHI DLCDR2.5 |
7.5 No-pecking |
196 | 25,000 | 0.040 | 1,000 | Yellow 1 |
| S50C | MISUMI Corp. TAC-ESDBA2.0 |
6 1 mm/step |
126 | 20,000 | 0.010 | 200 | Red |
▼End mill
| Material | Tool | Feed rate (m/min) |
Motor speed (min⁻¹) |
Feed per tooth (mm/tooth) |
Feed rate (mm/min) |
Depth of cut (ap × ae) (mm) |
Load meter |
| A5052 | Mitsubishi Material MS2ES φ3 |
565 | 60,000 | 0.02 | 2,400 | 0.3 × 2.7 | Green 1 |
| S50C | Mitsubishi Material MS2ES φ2.5 |
149 | 19,000 | 0.02 | 570 | 0.25 × 2.25 | Green 1 |
02
Flange type torque motor spindle for CNC automatic lathe
BMF-3130-CTZ
30,000 min⁻¹ torque motor spindle
Specifications
Code No.
7924
Model
BMF-3130-CTZ
O.D.
φ31 mm
Motor speed
30,000 min ⁻¹
Max. power
350 w
Spindle accuracy
within 1 μm
Collet
CHA Group
(ø0.5-ø4.0 mm)
The minimum cord bending radius
60 mm
Net weight
659 g
*Collet is sold separately.
Torque and power curve
Dimensions
Case studies
case 01
Cincom L32
φ3.0 × 7.5 mm Drilling
Mounting on Cincom L32 Drilling
2.5 mm dia. x 7.5 mm dia.
φ2.5 × 7.5 mm drill processing for aluminum (A5052). Compared to conventional conditions (standard rotary tools), the high-speed rotation increases the feed rate by 3 times and improves machining efficiency.
| Machine | CNC automatic lathe (CITIZEN MACHINERY CO.,LTD. / Cincom L32-1M10) |
|---|---|
| Workpiece material | Aluminum (A5052) |
| Tool | NACHI DLCDR3.0 |
| Conventional conditions (Standard rotary tool) |
Nakanishi's proposed conditions | |
|---|---|---|
| Cutting speed [m/min] | 57 | 198 |
| Rotation speed [min-1] | 6,000 | 21,000 |
| Feed per revolution［mm/rev］ | 0.057 | 0.050 |
| Feed rate［mm/min］ | 342 | 1,050 |
| Load meter | - | Yellow 1 |
Machining Conditions
▼Drill
| Material | Tool | Hole depth (mm) |
Feed rate (m/min) |
Motor speed (min⁻¹) |
Feed per revolution (mm/rev) |
Feed rate (mm/min) |
Load meter |
| A5052 | NACHI DLCDR3.0 |
9 No-pecking |
196 | 21,000 | 0.050 | 1,050 | Yellow 1 |
| S50C | MISUMI Corp. TAC-ESDBA2.5 |
7.5 2.5 mm/step |
126 | 16,000 | 0.020 | 320 | Yellow 1 |
▼End mill
| Material | Tool | Feed rate (m/min) |
Motor speed (min⁻¹) |
Feed per tooth (mm/tooth) |
Feed rate (mm/min) |
Depth of cut (ap × ae) (mm) |
Load meter |
| A5052 | Mitsubishi Material MS2ES φ3.5 |
330 | 30,000 | 0.05 | 3,000 | 0.35 × 3.15 | Green 1 |
| S50C | Mitsubishi Material MS2ES φ3.0 |
151 | 16,000 | 0.02 | 640 | 0.3 × 2.7 | Green 1 |
03
Straight type torque motor spindle
BM-3030RA
30,000 min⁻¹ torque motor spindle for various mounting methods
Specifications
Code No.
7925
Model
BM-3030RA
O.D.
φ30 mm
Motor speed
30,000 min ⁻¹
Max. power
350 w
Spindle accuracy
within 1 μm
Collet
CHA Group
(ø0.5-ø4.0 mm)
The minimum cord bending radius
60 mm
Net weight
474 g
*Collet is sold separately.
Torque and power curve
Dimensions
Machining Conditions
▼Drill
| Material | Tool | Hole depth (mm) |
Feed rate (m/min) |
Motor speed (min⁻¹) |
Feed per revolution (mm/rev) |
Feed rate (mm/min) |
Load meter |
| A5052 | NACHI DLCDR3.0 |
9 No-pecking |
198 | 21,000 | 0.050 | 1,050 | Yellow 1 |
| S50C | MISUMI Corp. TAC-ESDBA2.5 |
7.5 2.5 mm/step |
126 | 16,000 | 0.020 | 320 | Yellow 1 |
▼End mill
| Material | Tool | Feed rate (m/min) |
Motor speed (min⁻¹) |
Feed per tooth (mm/tooth) |
Feed rate (mm/min) |
Depth of cut (ap × ae) (mm) |
Load meter |
| A5052 | Mitsubishi Material MS2ES φ3.5 |
330 | 30,000 | 0.05 | 3,000 | 0.35 × 3.15 | Green 1 |
| S50C | Mitsubishi Material MS2ES φ3.0 |
151 | 16,000 | 0.02 | 640 | 0.3 × 2.7 | Green 1 |
COOLANT THROUGH
MOTOR SPINDLE
Targets
Precision machining of automotive parts (pure iron,
electromagnetic stainless steel, carbon steel) and
medical parts (aluminum, brass, stainless steel)
04
Coolant through motor spindle for CNC automatic lathe
CTMF-3130
30,000 min⁻¹ Coolant through motor spindle (Max. 20 MPa ready)
What is "Coolant Through"?
Motor spindle for machining by using a drill with an
oil hole to discharge coolant from the tool tip. It has
various advantages in deep hole drilling on CNC
automatic lathes, such as chip evacuation, shorter
machining time, longer tool life, and higher
accuracy.
Specifications
Code No.
7926
Model
CTMF-3130
O.D.
φ31 mm
Motor speed
30,000 min ⁻¹
Max. power
350 w
Spindle accuracy
within 1 μm
Collet
CHA AA Group
(ø3.0, ø3.175, ø4.0 mm)
The minimum cord bending radius
60 mm
Net weight
1,100 g
Coolant pressure
3.0-20.0 MPa
*Collet and collet nut are sold separately.
Torque and power curve
Dimensions
Graph of Coolant pressure vs. flow rate
Case study
case 01
Mounting on BW128ZJ-II
φ1.0 × 20 mm Deep drilling (SUS304)
Mounting on BW128ZJ-II
φ1.0×20 mm Drilling on SUS304
Comparison of φ1.0 mm hole drilling (20 mm through hole) of SUS304 between conventional conditions (standard rotary tool) and Nakanishi's proposed conditions. Achieved a 96 % reduction in processing time for deep hole drilling (φ3.0 or smaller: L/D = 20) on CNC automatic lathe.
| Machine | CNC automatic lathe (TSUGAMI / BW128ZJ-Ⅱ) |
|---|---|
| Workpiece material | Stainless Steel (SUS304) |
| Tool | MITSUBISHI DVAS0100X20S040 (Φ1 mm blade dia.) |
| Hole depth | 20 mm (L/D=20) through hole |
| Guide hole | 2 mm depth |
| External lubrication (Conventional method) |
Internal lubrication (Coolant through) |
|
|---|---|---|
| Cutting speed [m/min] | 31 | 60 |
| Rotation speed [min-1] | 10,000 | 19,000 |
| Feed per revolution［mm/rev］ | 0.01 | 0.02 |
| Feed rate［mm/min］ | 100 | 350 |
| Step | 0.25 mm/step | Non-pecking |
| Coolant | External lubrication insoluble coolant |
Internal lubrication (20 MPa) insoluble coolant |
| Machining time | 85 sec | 3.4 sec |
Machining Conditions
▼ Electromagnetic soft iron φ2.0 mm drilling (comparison of conventional and coolant-through machining)
| Drilling conditions |
Conventional conditions (Standard rotary tool) |
Nakanishi's proposed conditions |
|---|---|---|
| Workpiece material | ELCH2 (Electromagnetic soft iron) | |
| Tool O.D. (φ) | 2.0 | |
| Hole depth (mm) | 19 | 20 |
| L/D | 10 | |
| Feed rate (m/min) | 40 | 188 |
| Motor speed (min-1) | 6,400 | 30,000 |
| Feed per revolution (mm/rev) | 0.03 | 0.04 |
| Feed rate (mm/min) | 192 | 1,200 |
| Coolant | External lubrication | Internal lubrication |
| Step | Front 3.5 mm x 2 times Rear 4.0 mm x 3 times |
Non-pecking |
| Processing time | 13.0 | 1.0 |
Common conditions: Non-step machining, Coolant pressure 20 MPa, coolant viscosity VG7
| Workpiece material | Tool O.D. (mm) |
Hole depth (mm) |
L/D | Cutting speed (m/min) |
Motor speed （min⁻¹） |
Feed per revolution (mm/rev) |
Feed rate （mm/min） |
Processing time (sec) |
| A6061 (aluminum) |
1.0 | 20 | 20 | 94 | 30,000 | 0.07 | 2,100 | 0.6 |
| 1.5 | 20 | 13 | 141 | 30,000 | 0.06 | 1,800 | 0.7 | |
| 2.0 | 20 | 10 | 188 | 30,000 | 0.04 | 1,200 | 1.0 | |
| C2801 (brass) |
1.0 | 20 | 20 | 94 | 30,000 | 0.03 | 900 | 1.3 |
| 1.5 | 20 | 13 | 141 | 30,000 | 0.02 | 700 | 1.7 | |
| 2.0 | 20 | 10 | 188 | 30,000 | 0.02 | 700 | 1.7 | |
| S50C•SCM440 (carbon and alloy steel) |
1.0 | 20 | 20 | 94 | 30,000 | 0.03 | 900 | 1.3 |
| 1.5 | 20 | 13 | 118 | 25,000 | 0.03 | 850 | 1.4 | |
| 2.0 | 20 | 10 | 119 | 19,000 | 0.03 | 570 | 2.1 | |
| SUS304 (stainless steel) |
1.0 | 20 | 20 | 60 | 19,000 | 0.02 | 350 | 3.4 |
| 1.5 | 20 | 13 | 75 | 16,000 | 0.03 | 400 | 3.0 | |
| 2.0 | 20 | 10 | 94 | 15,000 | 0.03 | 400 | 3.0 |
![[ E3000iモータスピンドルシステム図 ]](./images/common/motor_system_img.png)
E3000i Controller
[A] Load monitor LED
Load meter enables setting of optimum cutting conditions.
[B] Wide speed range
The controllable speed ranges from 1,000 to 80,000 min-1,
while the 3-digit display allows speed setting in units of 200 min-1.
[C] Improved installation flexibility with interchangeable operation panel.
The panel can be changed vertically, horizontally, or on
the back, taking into consideration the installation space
and the direction of the cord wiring.
[Other functions]
・Display function of motor current value: Motor load status, prevents excessive tightening when mounting the spindles to machines.
・Air pressure display function: Allows confirmation of air pressure supplied to the controller.
・Key hold function: Disables button operation on the operation panel.
[D] Two motors can be connected to provide individual control of each motor.
[E] External control function
The controller can be controlled externally by using external devices such as sequence control.
In addition, the operating status can be monitored by an external device via a monitor output.
*Please refer to the operation manual for details.
Dimensions
Specifications
Code No.
7927
Speed range
1,000–80,000 min⁻¹
Input voltage
AC100–240 V
without plug, multiple output power
Max. power
350 w
Power consumption
AC1.8 A
Net weight
3.0 kg
Air consumption
1 Motor spindle:
30 NL/min （0.2–0.3 MPa）
2 Motor spindles:
60 NL/min （0.3–0.4 MPa）
*in case of E3000i series
Lineup
Motor cord
| Code No. | Model | Cord length | Standard equipment and accessories | Compatible model | |
|---|---|---|---|---|---|
|
7931 | EMCD-3000i-3M | 3 m | Air hose Connector cap (included) |
BMF-3160-CTZ BMF-3130-CTZ BM-3030RA CTMF-3130 |
| 7932 | EMCD-3000i-5M | 5 m | |||
| 7933 | EMCD-3000i-7M | 7 m |
*The minimum cord bending radius is 60 mm.
Collet
| Code No. | Model | I.D. | Compatible model | |
|---|---|---|---|---|
|
91430 | CHA-3.0 | ø3.0 |
BMF-3160-CTZ BMF-3130-CTZ BM-3030RA CTMF-3130 (Type AA only) *High precision type AA (Run-out accuracy within 2 μm) |
| 91440 | CHA-4.0 | ø4.0 | ||
| 91492 | CHA-2.35 | ø2.35 | ||
| 91493 | CHA-3.175 | ø3.175 | ||
| 91494 | CHA-3.0AA | ø3.0AA* | ||
| 91495 | CHA-4.0AA | ø4.0AA* | ||
| 91496 | CHA-3.175AA | ø3.175AA* | ||
| 914□□ | CHA-□□ | ø0.5、ø0.6、ø0.7、ø0.8、ø0.9 | ||
| ø1.0、ø1.5、ø2.0、ø2.5、ø3.5 | ||||
| ø1.1、ø1.2、ø1.3、ø1.4、ø1.6、ø1.7、ø1.8、ø1.9、φ2.1、φ2.2、φ2.3、ø2.4、ø2.6、ø2.7、ø2.8、ø2.9、φ3.1、ø3.2、ø3.3、ø3.4、ø3.6、ø3.7、ø3.8、ø3.9 |
Collet nut
| Code No. | Model | Compatible model | |
|---|---|---|---|
|
2102 | CHN-A |
BMF-3160-CTZ BMF-3130-CTZ BM-3030RA |
|
7798 | CHN-CTA-3.0 | CTMF-3130 |
| 7799 | CHN-CTA-3.175 | ||
| 7800 | CHN-CTA-4.0 |
Bracket
| Code No. | Model | Compatible model | |
|---|---|---|---|
| - | 7943 | DL-Type brackets for securing the E3000i controller horizontally: 2 pcs. | E3000i Controller *Remove the rubber pad before fitting the brackets. |
Air line kit
| Code No. | Model |
|---|---|
| 4504 | AL-C1204 |
Filtration: 0.3 μm
Grip ring
| Code No. | Model | Compatible model |
|---|---|---|
| 1885 | GR-30 | BM-3030RA |
Control panel extension cord (4 m)
| Code No. | Model |
|---|---|
| 7940 | E3000i-PEX4 |