KDA 2.1-100-3-APD-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 2.1-100-3-APD-W1 is a spindle drive from 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 operation within an ambient temperature range of 5 to 45 degrees Celsius.
Internal Product Review
The KDA 2.1-100-3-APD-W1 spindle drive from Bosch Rexroth Indramat stands out for its high 100 A rated current and reliable forced cooling with a mounted heatsink blower. This model features both digital position command and analog speed command value interfaces, supporting flexible integration into automated systems. The drive is optimized for stable operation within a 5 to 45 degrees Celsius ambient temperature range.
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Product Description:
The KDA 2.1-100-3-APD-W1 spindle drive is manufactured by Bosch Rexroth Indramat within the KDA Spindle Drives series, release 2. It operates as the axis-specific power stage that energizes and regulates a machine-tool spindle from a shared DC bus. By shaping current and voltage in real time, the drive allows numerical control systems to vary spindle speed, hold commanded torque, and execute orientation moves required for tool changes or tapping cycles. Its hardware layout supports auxiliary encoder feedback so the controller can maintain tight speed precision during rapid load fluctuations.
The drive accepts a DC link of 300 VDC, so it must be paired with an Indramat supply module delivering that nominal voltage level. Internal IGBT bridges can conduct up to 100 A of continuous armature current, giving the spindle high acceleration torque without saturating the power stage. Thermal losses are discharged through a mounted heat sink blower; the fan receives its own 220 V / 50–60 Hz source and expels air directly across the fins. Because the airflow is actively forced, the unit is classified for Forced cooling, letting it sustain rated current while cabinet temperatures climb during long machining cycles.
Permitted ambient operation spans 5–45 °C, and functionality is guaranteed up to 1000 m elevation without derating, which aligns with typical shop-floor installations. Command structure combines a non-contact resolver or incremental encoder at the dedicated second encoder input and a numerical control that issues velocity through an analog speed command input; an additional interface carries the position command value in digital form for orienting or synchronized spindle tasks. These signal paths allow the drive to follow fine motion profiles during orientation and synchronized spindle tasks.
