MICROLAB PRECISION TECHNOLOGY CO., LTD.
886-4-22392345
886-4-22392357
No. 530, Sec. 1, Songzhu Rd., Beitun Dist., Taichung City 40643, Taiwan
www.twspindle.com

Products

Built-In Motor Spindle
Built-In Motor Spindle With Housing Diameter 120
HF-120

Built-in Motor Spindle with housing diameter 120 is the mainstream for high speed machining.
There are 4 types for Built-in Motor spindle with housing diameter 120 which are all Flanged type, M3-LMSN / M3-LMSNA / H4-LMSN / H4-LMSNA.
H4-LMSN, tool holder is HSK40E, hydraulic tool exchanging.
H4-LMSNA, tool holder is HSK40E, pneumatic tool exchanging cylinder.
M3-LMSN, tool holder is BT30, IOS30, BBT30, hydraulic tool exchanging.
M3-LMSNA, tool holder is BT30, IOS30, BBT30, pneumatic tool exchanging cylinder.

The features of Built-in Motor High Speed Spindle with Housing diameter 120 are high speed machining, high efficiency and low noise. Each type can have the motor with different power specifications, and can be optional with FANUC coil.

H4-LMSN, Built-in Motor High Speed Spindle with Housing diameter 120, tool holder is HSK40E, hydraulic tool exchanging, Max. speed is 30,000 rpm.

H4-LMSNA, Built-in Motor High Speed Spindle with Housing diameter 120, tool holder is HSK40E, pneumatic tool exchanging cylinder, Max. speed is 24,000 rpm.

M3-LMSN, Built-in Motor High Speed Spindle with Housing diameter 120, tool holders are BT30 / IOS30 / BBT30, hydraulic tool exchanging, Max. speed is 30,000 rpm.

M3-LMSNA, Built-in Motor High Speed Spindle with Housing diameter 120, tool holders are BT30 / IOS30 / BBT30, pneumatic tool exchanging cylinder, Max. speed is 24,000 rpm.

Specification

a. Water-Repellant Ring (Patented)

For this spindle type, every spindle has a water repellant ring to effectively repel any cutting fluids away from the spindle to prevent anything from splashing into the labyrinth area during high speed cutting.

b. Labyrinth Design with Air Seal

During high speed operation, positive air pressure coming out from the labyrinth prevents any contamination from entering into the spindle.

c. Highly Efficient Helical Cooling Channel

The compactly designed helical cooling channels effectively dissipate heat from the stator coil and bearings to reduce the effects of thermal deformation on precision.

d. Anti-Rotating Gripper Guide Ring (Patented)

During acceleration and deceleration of the spindle, the patented gripper guide ring design eliminates any unusual noises and vibration of dynamic balance.

e. Inspection of Precision of Every Spacer

Every spacer is inspected for precision to assure unanimous quality of every spindle.

f. PCB Model Type Made With Stainless Steel

Suitable for clean room operation, the PCB model type is made with stainless steel to allow the use of a water cooling system.

g. Hardness Test of Critical Parts

After heat treatment, the critical parts undergo a hardness test to ensure they have the correct hardness in order to reduce their risk of damage during operation.

h. 3-Plane Dynamic Balancing

To effectively decrease vibration, we conduct dynamic balancing calibration at 3 different planes.

i. Test of Isolation Grade of Stator Coil

Testing the isolation grade of the stator coil ensures stable electronic drive control and long operational life.

Specififcation Of Build-In Motor Spindle
MODEL NO. TOOL HOLDER MAX. SPEED
(RPM)
NO.OF BEARINGS SC ENCODER
(PULSE/REV)
POWER
(KW)
DIAMETER OF FRONT BEARING (MM) OUTER DIAMETER OF HOUSING (MM) FLANGE/CLAMPED TYPE NOTE
M3-LMSN BBT30
BT30
ISO30
24000
30000
4   Option 8.2 KW
(10 KW)
(14 KW)
Ø 40 Ø 120 Flange type Hydraulic tool exchanging
H4-LMSN HSK40E
M3-LMSNA BBT30
BT30
ISO30
20000 4   Option 8.2 KW
(10 KW)
(14 KW)
Ø 40 Ø 120 Flange type Penumatic tool exchanging cylinder
H4-LMSNA HSK40E
Table Of Outer Dimensions Of Built-In Spindle
MODEL NO. L L1 L2 L3 W2 D1 D2 D3(H7) M1 REFERENCE
M3-LMSN
H4-LMSN
504.5 101 50 279.5 32.5 116 153 120 6-M8
PCD Ø 135
Diagram 1
M3-LMSNA
H4-LMSNA
552.2 131 50 421.2 32.5 115 163 120 6-M8
PCD Ø 135
Diagram 1

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