KDA 3.2-100-3-AYS-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 3.2-100-3-AYS-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 100 Amps and a DC supply voltage of 300 VDC. It features forced cooling using a mounted heatsink blower that operates on 220V AC, and supports a serial interface (RS 232 C) as well as a second encoder and synchronous input. The drive is designed to operate within an ambient temperature range of 5 to 45 degrees Celsius and up to 1000 meters elevation.
Internal Product Review
The KDA 3.2-100-3-AYS-W1 spindle drive from Bosch Rexroth Indramat features a rated current of 100 A and operates with a 300 VDC supply voltage, making it suitable for demanding industrial applications. Its mounted heatsink blower with forced cooling ensures stable performance in environments up to 45°C. The inclusion of a serial interface (RS 232 C) and second encoder input enhances system flexibility and feedback capabilities.
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Product Description:
Bosch Rexroth Indramat builds the KDA 3.2-100-3-AYS-W1 as part of its KDA Spindle Drives series. Classified as a spindle drive, it regenerates DC bus energy into a controlled three-phase output so machine tool spindles can accelerate, brake, and hold speed precisely during automated milling, drilling, or grinding operations. Stable spindle control is important in these applications because it helps maintain consistent cutting performance as the load changes. The unit is series 3 and version 2, and it fits into Indramat modular drive racks while linking to CNC controllers that supervise coordinated motion.
A regulated DC link of 300 VDC feeds the IGBT output stage, which is rated for a continuous spindle current of 100 A. Heat generated by those switching devices is removed by a mounted heat sink blower supplied from a separate 220 V at 50/60 Hz line, preventing thermal derating during long duty cycles. Command inputs use an analog speed reference, allowing straightforward connection to velocity channels on conventional or digital CNCs. For setup, trace capture, and parameter uploads, the unit provides a serial interface (RS-232C). Feedback flexibility is extended by a second encoder input that can accept synchronous position data from a spindle-mounted sensor, enabling dual-loop control when tighter speed regulation or position tracking is needed.
The drive is intended for ambient temperatures between 5 to 45 °C and for installations up to 1000 m above sea level without extra cooling equipment. Within these limits, the integral blower and its forced cooling system keep internal temperatures under control even when cabinet airflow is restricted. These operating conditions should be observed so the power section can remain stable during prolonged spindle duty. The stated limits apply to normal installation environments inside electrical enclosures used on machining equipment.
