KDA 3.2-100-3-DYI-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-DYI-W1 Spindle Drive is part of the KDA Spindle Drives series and is cooled with a mounted heatsink blower operating from a 220V AC source. It supports a rated current of 100 Amps, runs on a DC supply voltage of 300 VDC, and includes both a second encoder input and synchronous input. The device is suitable for ambient temperatures from 5 to 45 degrees Celsius and can be installed up to 1000 meters above sea level.
Internal Product Review
The KDA 3.2-100-3-DYI-W1 spindle drive from Bosch Rexroth Indramat stands out with a rated current of 100 A and a 300 VDC supply voltage, supporting high-performance applications. Integrated forced cooling with a mounted heatsink blower ensures stable operation within an ambient temperature range of 5 to 45 degrees Celsius. Overall, this spindle drive offers reliable efficiency and strong thermal management for demanding environments.
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Product Description:
The KDA 3.2-100-3-DYI-W1 spindle drive is produced by Bosch Rexroth Indramat as a member of the KDA Spindle Drives series. This unit is a digital servo inverter that energizes and regulates high-speed machining spindles in automated production lines. It accepts numeric control commands and converts them into controlled armature current for accurate spindle response during machining. Version 3, release 2 provides the pulse-width modulation hardware, control logic, and interface set needed for this task. This arrangement makes the drive suitable for machine tools that require stable electronic spindle control instead of fixed-speed operation.
Its internal power section is designed for a DC bus of 300 VDC, from which the inverter can deliver up to 100 A of continuous output current to the spindle motor. Speed references are accepted as a 16-bit parallel digital word, allowing direct linking with CNC processors without analog conversion. Thermal management relies on a mounted heat sink blower, and the blower motor draws 220 V at 50/60 Hz from an auxiliary AC source. The enclosure uses forced cooling to push ambient air through the fins and maintain semiconductor temperature during sustained operation. Direct digital reference transfer helps the control system preserve command resolution between the CNC and the power stage.
Application limits include an ambient range of 5 to 45 °C and an installation altitude no higher than 1000 m above sea level; operation beyond either limit requires derating. For feedback, the drive provides an incremental encoder output that can be wired to the supervising motion controller for real-time speed verification. A dedicated port also provides a second encoder input and a synchronous input, supporting master-slave spindle arrangements or high-resolution position loops without auxiliary modules. The combination of feedback output and auxiliary encoder connectivity allows the spindle axis to be monitored and coordinated within larger multi-axis systems. These interfaces support spindle acceleration, orientation, and braking in multi-axis machining centers.
