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 speeds 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.
Our spindles are widely used as replacements for the main spindle by CNC machine tool manufacturers and machine rebuilders. They 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.
Motor Spindle Features
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.
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.
Work Head Spindle
Rough Grinding Spindle
Rough Grinding Motor
Finish Grinding Spindle
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.
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.
CNC Spindle Videos | High Speed Grinding, Milling, Drilling & Tapping
Cylindrical Grinding Spindle
High Speed Milling Spindle
Drilling and Tapping Spindle
CNC Router Spindle
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