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KDA 3.2-100-3-AY0-W1 Bosch Rexroth Indramat

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The Bosch Rexroth Indramat KDA 3.2-100-3-AY0-W1 is a spindle drive belonging to the KDA Spindle Drives series. It features a rated current of 100 Amps and operates with a DC supply voltage of 300 VDC. The drive uses a mounted heatsink blower for forced cooling and supports analogue speed command values.

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Product Description:

The KDA 3.2-100-3-AY0-W1 is a spindle drive produced by Bosch Rexroth Indramat within the KDA Spindle Drives series, release 3, version 2. It serves as the power stage between a shared DC bus and a machine-tool spindle motor, converting stored energy into a regulated three-phase output so the CNC can control speed and torque during cutting, drilling, or grinding cycles. Within the automation system, the unit receives reference data from the controller and supplies the high-current waveforms that rotate the tool.

The drive operates from a bus voltage of 300 VDC and can deliver a continuous phase current of 100 A, supporting rapid acceleration without thermal derating. Heat produced by the IGBTs is removed through a heat sink-mounted blower on the housing exterior. This blower is powered by an auxiliary feed of 220 V at 50/60 Hz, separating fan demand from the main supply. The enclosure uses forced cooling, so airflow remains present during extended high-speed machining. No additional interface option is installed, so the model uses the standard bus and diagnostic terminals.

Environmental limits permit operation in ambient temperatures of 5 to 45 °C. The module may be mounted at elevations up to 1000 m above sea level before derating rules apply. Spindle velocity is commanded by an analog reference, typically a ±10 V signal generated by the CNC. For applications that require angular alignment, the electronics include a second encoder input and synchronous input. This allows the drive to coordinate spindle position with external axes during synchronized motion. International shipping options are available for this product. Additionally, Wake Industrial offers a one-year warranty on this Bosch Rexroth KDA 3.2-100-3-AY0-W1 spindle drive. For questions regarding fault codes customers can use the free chat tool available on our website.

AC Source for Heatsink Blower
220V/50-60Hz
Additional Interfaces
No Additional Interface Option
Ambient Temp Range
5 to 45 Degrees Celsius
Cooling
Mounted Heatsink Blower
Cooling Mode
Forced Cooling
DC Supply Voltage
300 VDC
Max Installation Elevation
1000M above sea level
Product Type
Spindle Drive
Rated Current
100 A
Second Encoder Input
Second encoder input and synchronous input
Series
3
Series Version
2
Speed Command Value
Analogue
  • KDA 321003AY0W1

Frequently Asked Questions about KDA 3.2-100-3-AY0-W1:

Q: What is the rated current capacity of the KDA 3.2-100-3-AY0-W1 spindle drive?

A: The KDA 3.2-100-3-AY0-W1 spindle drive operates with a rated current of 100 A.

Q: What is the required AC source for the heatsink blower on the KDA 3.2-100-3-AY0-W1?

A: This spindle drive uses a 220V, 50-60Hz AC source to power its heatsink blower.

Q: What ambient temperature range is supported by the KDA 3.2-100-3-AY0-W1 spindle drive?

A: The ambient temperature range for the KDA 3.2-100-3-AY0-W1 is from 5 to 45 degrees Celsius.

Q: How is the KDA 3.2-100-3-AY0-W1 spindle drive cooled?

A: Cooling is provided by a mounted heatsink blower operating in forced cooling mode.

Q: Does the KDA 3.2-100-3-AY0-W1 spindle drive have provisions for a second encoder input?

A: This model includes a second encoder input and a synchronous input for feedback and coordination.


Internal Product Review

  • ‘‘The KDA 3.2-100-3-AY0-W1 spindle drive from Bosch Rexroth Indramat features a 100 A rated current and operates on a 300 VDC supply, delivering high performance for demanding spindle applications. Its mounted heatsink blower with forced cooling ensures efficient thermal management in environments up to 45°C. This spindle drive stands out for its reliable operation and advanced cooling system.’’

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