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Giordano Colombo Multispindle Units
What Is a Colombo Multispindle Unit? A Colombo multispindle unit is a multi-output assembly — typically a single head or housing containing multiple spindle shafts arranged to perform repetitive drilling, boring, or routing operations simultaneously. Each output shaft carries its own bearings and tooling interface. The shafts share a common housing structure, and depending on…
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Giordano Colombo Manual Electrospindles
(Fixed-Tool High-Speed Spindles for CNC & Specialty Applications) Giordano Colombo manual electrospindles are high-speed, fixed-tool spindle units commonly used in CNC routers, edge-processing machines, specialty machining centers, and aggregate heads. Unlike automatic tool-change (ATC) electrospindles, manual versions use collet-based tool holding (typically ER collet systems) and are designed for dedicated tooling setups. These spindles are…
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Giordano Colombo Automatic Electrospindles
What Is a Colombo Automatic Electrospindle? A Colombo automatic electrospindle is a self-contained machining unit that integrates the motor, spindle shaft, super-precision angular-contact bearing system, automatic tool-change mechanism, cooling system, and sensor hardware into a single assembly. Tool changes happen without manual intervention — a spring-loaded drawbar driven by pneumatic or hydraulic actuation clamps and…
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BT40 SKF Spindle Repair
(High-Speed Vertical Machining Centers • 10,000–20,000+ RPM) BT40 spindles are common in high-speed vertical machining centers where balanced toolholders, consistent taper contact, and stable thermal behavior are critical. Many BT40 cartridges use SKF super-precision bearing systems, typically from the 70xx or 719xx (often hybrid ceramic) series. Atlanta Precision Spindles rebuilds the spindle assembly only, restoring…
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CAT40 SKF Spindle Repair
(Vertical Machining Centers • 8,000–15,000+ RPM) Many CAT40 Vertical Machining Centers use SKF super-precision angular contact bearing systems inside integrated spindle cartridges. Whether configured with 70xx steel bearings for rigidity or 719xx hybrid ceramic bearings for higher RPM, these spindles rely on precise preload, clean lubrication, and accurate balance. Atlanta Precision Spindles rebuilds the spindle…
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SKF VMC Spindles
High-Speed Cartridge Systems for CAT40 • BT40 • ISO30 Machining Centers Many Vertical Machining Centers (VMCs) use SKF super-precision bearing systems inside integrated spindle cartridges. Whether configured with 719xx hybrid ceramic bearings for higher RPM or 70xx steel angular contact sets for added stiffness, these spindles depend on precise preload, clean lubrication, and accurate balance.…
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SKF spindle overheating
Overheating in an SKF-equipped spindle is never random. Whether your spindle uses 719xx high-speed hybrid ceramic bearings or 70xx steel super-precision sets, heat rise is typically the first sign of preload imbalance, lubrication breakdown, contamination, or internal friction. In high-RPM VMC and grinding applications, small changes in preload or lubrication can amplify rapidly. Atlanta Precision…
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SKF Grinding Spindle Repair
(OD • ID • Surface • High-Speed Precision Grinding) Grinding spindles demand extreme rotational accuracy, thermal stability, and balance precision. Many OD, ID, and surface grinding machines rely on SKF super-precision bearing systems, commonly 719xx and 70xx series — often in hybrid ceramic configurations for higher RPM capability. Atlanta Precision Spindles rebuilds the spindle assembly…
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Vertical Machining Center (VMC) SKF Spindle Repair
(High-RPM • CAT40 / BT40 • ISO30 • Cartridge Systems) Many Vertical Machining Centers (VMCs) rely on SKF super-precision bearing systems inside integrated spindle cartridges. Whether the spindle uses 719xx hybrid ceramic sets for high speed or 70xx steel angular contact bearings for stiffness, preload accuracy and balance are critical to performance. Atlanta Precision Spindles…
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SKF Hybrid Ceramic 719xx Spindle Bearing Repair
(Si₃N₄ Ball, Super-Precision Angular Contact Systems) Many high-speed CNC and grinding spindles use SKF 719xx hybrid ceramic angular contact bearings, which feature: These bearings are engineered for speed and temperature stability — but they are extremely sensitive to preload, contamination, and assembly errors. Why Hybrid Ceramic 719xx Bearings Are Used Hybrid ceramic bearings offer: ✔…
For Spindle Repair Call: (678) 225-7855
