UAASKA-06SES11 AC Spindle Motor Product Specification
UAASKA-06SES11 is a medium-small frame three-phase AC spindle motor manufactured by Yaskawa Electric, belonging to the mature UAASKA external cooling spindle motor lineup tailored for medium and small CNC machining equipment, mold engraving machines, precision CNC lathes and automated milling machinery. Built with high-performance rare-earth permanent magnet rotor and densely laminated silicon steel stator core, this motor features wide constant-power speed regulation range, stable low-speed high-torque output and low-vibration high-speed operation capability to adapt rough cutting, finish machining and frequent start-stop forward-reverse switching in actual cutting production. It adopts independent external forced air cooling configuration to guarantee stable heat dissipation under long-time continuous cutting load, avoiding overheating shutdown caused by sustained heavy load operation. The suffix SES11 stands for factory customized configuration including 400V rated input specification, serial high-precision feedback encoder and dedicated flange plus shaft customization parameters; this customized specification cannot be replaced by standard 06 frame generic spindle motors without mechanical modification and drive parameter re-calibration. The original mass production of this model has been discontinued, and available market inventory mainly consists of surplus original new stock and professionally refurbished motors passing full aging inspection for equipment maintenance replacement.
Description
UAASKA-06SES11 AC Spindle Motor Product Specification
1. Product Overview
UAASKA-06SES11 is a medium-small frame three-phase AC spindle motor manufactured by Yaskawa Electric, belonging to the mature UAASKA external cooling spindle motor lineup tailored for medium and small CNC machining equipment, mold engraving machines, precision CNC lathes and automated milling machinery. Built with high-performance rare-earth permanent magnet rotor and densely laminated silicon steel stator core, this motor features wide constant-power speed regulation range, stable low-speed high-torque output and low-vibration high-speed operation capability to adapt rough cutting, finish machining and frequent start-stop forward-reverse switching in actual cutting production. It adopts independent external forced air cooling configuration to guarantee stable heat dissipation under long-time continuous cutting load, avoiding overheating shutdown caused by sustained heavy load operation. The suffix SES11 stands for factory customized configuration including 400V rated input specification, serial high-precision feedback encoder and dedicated flange plus shaft customization parameters; this customized specification cannot be replaced by standard 06 frame generic spindle motors without mechanical modification and drive parameter re-calibration. The original mass production of this model has been discontinued, and available market inventory mainly consists of surplus original new stock and professionally refurbished motors passing full aging inspection for equipment maintenance replacement.
2. Model Code Definition
UAASKA serves as the base series code of externally fan-cooled AC spindle motor from Yaskawa, where UA represents AC spindle classification, K marks external forced air cooling mode and the trailing A stands for optimized single-winding internal stator layout design. The numeric code 06 corresponds to standard frame dimension with rated continuous power of 5.5kW under S3 intermittent working system which is the core power grade of this spindle unit. Letter E indicates 400V three-phase industrial rated input voltage instead of conventional 200V domestic standard voltage version; S represents serial digital feedback encoder configuration replacing traditional incremental pulse feedback design for higher positioning precision; the last two digits S11 define customized mechanical parameters including exclusive output shaft dimension, keyway specification, mounting flange hole layout and dedicated aviation connector pin assignment for power and encoder wiring, forming unique OEM customized variant of standard 06 series spindle motors.
3. Electrical Performance Specification
This spindle motor is designed for three-phase 400VAC power input and needs to cooperate with matching Yaskawa dedicated spindle servo drive to realize full digital vector closed-loop speed and position control system. Its rated continuous output power is 5.5kW with matched rated operating current for normal cutting load, and the motor can provide up to 2.5 times instantaneous peak overload torque to absorb transient impact load generated during rough machining of steel, cast iron and aluminum alloy workpieces. Equipped with S-type serial high-resolution encoder defined by S code, the device transmits real-time rotation speed and angle position digital serial signals to matched driver, supporting rigid tapping, spindle orientation positioning and constant peripheral speed cutting functions required by high-precision CNC processing. Stator winding applies Class F insulation grade with built-in embedded thermal sensing components; when abnormal overload triggers winding over-temperature, the matched drive receives temperature alarm signal and executes automatic derating or protective shutdown to prevent winding burnout damage. Internal wiring circuit is equipped with surge suppression components to restrain voltage spike and industrial electromagnetic interference generated by peripheral frequency conversion equipment and switching power supply, improving running stability under complex factory power supply environment.
4. Mechanical Structure and Environmental Requirements
The motor main body uses cast aluminum alloy integrated housing with IP54 standard dustproof and anti-splash protection level, paired with separated external cooling fan assembly for forced convection heat dissipation, effectively solving heat accumulation problem under long-duration heavy cutting load compared with natural cooling spindle motors. Front output shaft is solid structure with standard flat keyway for rigid connection with synchronous belt pulley, small reduction gearbox or direct-coupled spindle components; rear casing reserves fixed installation position for dedicated aviation plug used for power cable and encoder signal cable connection, complying with S11 customized wiring definition standard. Standard flange mounting structure is adopted for equipment assembly to realize direct bolt fastening on machine spindle box without additional transition fixture processing.
Permissible continuous working ambient temperature ranges from 0°C to +40°C, while storage temperature scope is between -20°C and +70°C; applicable working humidity maintains 5%RH to 80%RH under non-condensing condition to avoid internal metal corrosion and circuit short circuit fault. When installation altitude exceeds 1000 meters above sea level, users must properly reduce continuous working load for compensation of decreased air density and weakened heat dissipation efficiency at high altitude. The motor can resist regular industrial vibration within 10Hz to 55Hz frequency range, and working environment with corrosive gas, heavy oil mist and accumulated conductive metal dust is prohibited to extend service life of internal bearing, winding and precision encoder components.
5. Application Range and Daily Maintenance Guidance
UAASKA-06SES11 is widely deployed as spindle driving unit of small vertical machining centers, precision CNC turning centers, mold engraving and milling machines, small special-purpose cutting equipment on automated production lines, applicable to rough and finish processing of aluminum, copper, plastic and small-size ferrous metal parts. During routine maintenance, operators need regular cleaning of external cooling fan filter screen to eliminate dust blockage leading to poor heat dissipation and over-temperature alarm failure; periodic inspection of shaft end bearing lubrication state and aviation connector wiring tightness is required to prevent oil leakage and loose wiring-induced abnormal speed fluctuation. For equipment replacement maintenance, original matching serial encoder and dedicated customized power cables specified by S11 standard must be adopted; mismatched replacement parts will result in abnormal feedback signal and out-of-control spindle runaway operation. After professional refurbishment, aftermarket spare motors will complete winding high-pot withstand voltage test, dynamic balance calibration of rotating components and full-load aging test according to original factory standards before delivery to guarantee consistent performance parameters with brand-new original products.
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