KDA 1.1-150-300W1/220V Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 1.1-150-300W1/220V is a spindle drive in the KDA Spindle Drives series with a rated current of 150 Amps and a DC supply voltage of 300 VDC. It is panel mounted, uses forced cooling with a 220 VAC blower supply, and operates in ambient temperatures from 5 to 45 degrees Celsius. The drive weighs 16 kg and supports analog speed command signals of ±10 V.
Internal Product Review
The KDA 1.1-150-300W1/220V is a Bosch Rexroth Indramat spindle drive with a 150 A rated current. Forced cooling and an analog ±10 V speed command support precise response and steady operation under load. Panel mounting and a 5 to 45 Degrees Celsius ambient range make this drive a dependable choice for controlled industrial environments.
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Product Description:
The KDA 1.1-150-300W1/220V spindle drive is produced by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. Mounted inside a machine-tool cabinet, it forms the regulated link between a DC supply module and a synchronous or asynchronous spindle motor, delivering three-phase power under current and thermal supervision. This arrangement allows the spindle to respond to command changes with controlled acceleration and stable operation during machining. The unit is intended for duties such as drilling, milling, or grinding, where accurate spindle speed supports consistent process results. That makes the unit suitable for machine tools that need repeatable spindle behavior through changing cutting conditions and frequent speed updates.
With a continuous output of 150 A, the drive supports rapid acceleration on heavy cutting heads. Its power stage draws from a shared bus at 300 VDC, balancing response time and conduction loss. Heat is removed by forced cooling, and the dedicated blower operates from a 220 VAC feed. Speed references arrive as an analog ±10 V signal, permitting straightforward integration with compatible control hardware. The housing is arranged for panel mounting, which supports orderly cable routing and directed airflow inside the cabinet. The drive operates at ambient temperatures from 5 °C to 45 °C, and it has no auxiliary encoder input or auxiliary interface.
The power electronics synchronize to mains at 50/60 Hz, so the same unit can be used in facilities with different grid standards. Installation is permitted up to 1000 m above sea level without derating. With a mass of 16 kg, the enclosure remains suitable for cabinet installation while providing a rigid mounting base. The design stays focused on the primary spindle-control functions rather than added auxiliary connections, which helps keep the layout direct and easy to follow in compact machine cabinets.
