High Speed Motor Spindles

Integral Motor Spindles for Grinding Machines and CNC Machining Centers

LPR Global provides precision machine tool spindles with diameters of 60-230 mm and speed up to 125,000 rpm for grinding, milling, and drilling machines. We manufacture a wide range of custom integral motor spindles and belt-driven spindles using hybrid ceramic ball bearing, air bearing, and hydrostatic bearing designs.

 

Motorized spindles are widely used as replacements for the main spindle by CNC machine tool manufacturers and machine rebuilders. We serve major players in the automotive, bearing and electronics industries, such as Hyundai, Delphi, Schaeffler, GMB, LG, Apple and Samsung. Our ISO 9001-certified plant in South Korea invests heavily in developing long-lasting, high performance bearings and shafts, and holds five patents related to spindle design.

Machine Tool Spindles for Milling, Grinding, Drilling & Routing

 

LPR Global designs and manufactures customized motor spindles for a wide range of machining processes including milling, grinding, drilling and tapping, boring, engraving and deburring. Hybrid angular contact ball bearings and air bearings are used to enable greater stiffness, longer service life and faster speeds. Our engineers have 30+ years of experience producing powerful and reliable spindle designs, paying special attention to shaft strength, bearing lifespan, and minimizing vibrations.

 

We produce custom-built motor spindles with various sizes, torques and speeds, suited for all applications such as high precision machining, mass production of parts, and testing and measurement systems. Our clients come from diverse industries like automotive, aerospace, mold & die, semiconductor, and industrial manufacturing.

 

Contact us with your requirements for customized spindles, or check out our popular spindle designs.

Motor Spindle Features

  • Liquid-cooled spindles with water or oil-based coolants
  • Grease, oil mist or air lubrication
  • Through-spindle coolant system
  • Compatible with HSK, BT, PC, ISO, MT, SK, and CAT tapers

Recent Projects

  • Quartz machining spindle for the semiconductor industry
  • ID/OD grinding spindle for bearing grinding machines
  • Milling and grinding spindles for automotive parts, supplied to Hyundai WIA
  • Engraving spindles for CNC engraving machines

Motorized Milling Spindles

 

Milling Spindles SpecificationsPDF Icon

Our precision machine tool spindles in sizes 80 to 230 mm are used for milling, drilling, tapping and deburring. They contain hybrid ceramic ball bearings and built-in motors, providing a long service life and minimal vibration. Optional features include through-spindle coolant systems, oil mist lubrication, encoders, and temperature sensors.

Motorized Milling Spindle

Motorized Grinding Spindles

 

Grinding Spindles Specifications PDF Icon

Grinding spindles are available in sizes 60-30 mm, with a speed range of 3,000 to 60,000 RPM, and motor power up to 25 kW.

 

Our spindles are widely used by grinding machine manufacturers for cylindrical grinding, ID/OD grinding, surface grinding and tool grinding. Applications include grinding bearings, collets, wheel dressers, quartz and glass materials, automotive parts, aerospace parts, and smartphone components.

Motorized Grinding Spindle

Tool Grinding Machine Spindles

 

Tool Grinder Spindles Specifications PDF Icon

Work Head Spindle
Rough Grinding Spindle
Rough Grinding Spindle Motor
Finish Grinding Spindle

Work Head Spindle

Rough Grinding Spindle

Rough Grinding Motor

Finish Grinding Spindle

Model
Type
Housing
Diameter (mm)
Power (kW)
Speed (max. RPM)
Taper
Tool Change
SW110-W
Work Head
110
5,000
MT5
Manual
SW100-284-R
Rough Grinding
100
6,000
Straight
Manual
SW180-6085-R
Rough Grinding Motor
180
8.5
6,000
Straight
Manual
SW120-8014-F
Finish Grinding
120
1.4
8,000
Straight
Manual

Air Bearing Spindles for Precision Machining

 

Air Spindles Specifications  PDF Icon

For high precision processing, our air spindles are ideal for micro-machining of small parts, die finishing, PCB drilling, glass grinding and wafer fabrication. By replacing mechanical contact with pressurized air, they provide high rotation speeds, minimal vibration, reduced heat generation and high load capacity, with contamination-free operation and long tool life.

Air Bearing Spindle
Model
Housing
Diameter (mm)
Power (kW)
Speed (max. RPM)
Taper
Tool Change
SW62A-1005-E11
62
0.5
100,000
ER11
Manual
SW62A-1251-E11
62
1.0
125,000
ER11
Manual
SW62A-1005-PC6
62
0.5
100,000
PC6
Automatic
SW62A-8012-PC6
62
1.2
80,000
PC6
Automatic

Belt-Driven Spindles

Custom Milling and Grinding Spindles

We design a wide variety of custom spindles based on our customers’ requirements. The list below showcases some of our popular designs that are mass-produced at our plant in South Korea.

Housing
Diameter
Power
Max.
Speed
Toolholder
Bearing
Model
[mm]
[kW]
[rpm]
Type
Lubrication
SW60-3001-S
60
1.0
30,000
Straight
Grease
SW60-6014-SK6
60
1.4
60,000
SK6 (MTC)
Grease
SW62-1052-E11
62
2.0
90,000
E11 (MTC)
Grease
SW62-3012-T
62
1.2
30,000
Taper
Grease
SW62-6014-PC6
62
1.4
60,000
PC6 (ATC)
Grease
SW80-1213-T
80
1.3
12,000
Taper (MTC)
Grease
SW80-3033-SK10T
80
3.3
30,000
SK10 (MTC)
Grease
SW80-3033-SK13
80
3.3
30,000
SK13 (MTC)
Grease
SW80-3033-ST
80
3.3
30,000
Straight
Grease
SW80-4033-SK6
80
3.3
40,000
SK6 (MTC)
Grease
SW80-4033-SK10
80
3.3
40,000
SK10 (MTC)
Grease
SW80-4033-E16
80
3.3
40,000
E16 (MTC)
Grease
SW80-4033-ISO20
80
3.3
40,000
ISO20 (ATC)
Grease
SW80-4033-PC10
80
3.3
40,000
PC10 (ATC)
Grease
SW80-4033-H25E
80
3.3
40,000
HSK E25 (ATC)
Grease
SW80-6033-SK10O
80
3.3
60,000
SK10 (MTC)
Oil Mist
SW80-6033-ISO10
80
3.3
60,000
ISO10 (ATC)
Grease
SW80-7005-SK10O
80
5.0
70,000
SK10 (MTC)
Oil Mist
SW80-7512-E11O
80
1.2
75,000
ER11 (MTC)
Oil Mist
SW80-7555-H25EO
80
5.5
75,000
HSK E25 (ATC)
Oil Mist
SW90-3033-B
90
3.3
30,000
Bar
Grease
SW90-4033-MT1
90
3.3
40,000
MT1
Grease
SW100-3055-H40EO
100
5.5
30,000
HSK E40
Oil Mist
SW100-7004-SOT
100
4.0
70,000
Straight
Oil Mist
SW110-1207-BB30
110
7.0
12,000
BBT30 (ATC)
Grease
SW110-1255-T
110
5.5
12,000
Taper (MTC)
Grease
SW110-1255-H40C
110
5.5
12,000
HSK C40 (MTC)
Grease
SW110-2411-BB30
110
11.0
24,000
BT30
Grease
SW110-2455-H32ET
110
5.5
24,000
HSK E32
Grease
SW110-3095-BB30ECO
110
9.5
30,000
BBT30
Oil Mist
SW110-4055-H40EO
110
5.5
40,000
HSK E40
Oil Mist
SW120-1514-SO
120
14.0
15,000
Straight
Oil Mist
SW120-2411-H40E
120
11.0
24,000
HSK E40 (ATC)
Grease
SW120-2415-B30
120
15.0
24,000
BT30
Grease
SW120-2495-H40E
120
9.5
24,000
HSK E40
Grease
SW120-4055-H40EO
120
5.5
40,000
HSK E40
Oil Mist
SW120-4212-SO
120
12.0
42,000
Straight (MTC)
Oil Mist
SW120-4515-SO
120
15.0
45,000
Straight
Oil Mist
SW140-2425-H50A
140
25.0
24,000
HSK A50
Grease
SW148-1204-I40
148
4.0
12,000
ISO40
Grease
SW150-3612-H40AECO
150
12.0
36,000
HSK A40
Oil Mist
SW150-3618-SO
150
18.0
36,000
Straight
Oil Mist
SW170-2415-B40O
170
15.0
24,000
BT40
Oil Mist
SW170-2425-H63AEC
170
25.0
24,000
HSK A63 (ATC)
Oil Mist
SW170-2425-H63AECOT
170
25.0
24,000
HSK A63
Oil Mist
SW170-2425-SECO
170
25.0
24,000
Straight (MTC)
Oil Mist
SW230-2440-H63AECO
230
40.0
24,000
HSK A63
Oil Mist

CNC Spindle Videos | High Speed Grinding, Milling, Drilling & Tapping

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