Product Description:

Bosch Rexroth Indramat’s 1MS200E-4C-A1/S010 is a stator module in the 1MB High-Speed Asynchronous Motors series. The component forms the stationary electromagnetic section of a frameless spindle, so it generates the magnetic field that acts on the rotor during operation. This arrangement supports high-speed milling, grinding, and drilling axes in automated equipment where compact packaging and direct integration into the machine structure are important. Because the rotor is installed separately, machine layout can be optimized around the spindle cartridge and bearing system. Its design also helps manage heat during long duty cycles so magnetic performance remains stable under continuous production loads.

The stator sheds heat through liquid cooling, using a closed circuit that circulates coolant around an aluminum cooling jacket attached to the lamination stack. This cooling approach supports steady thermal behavior when the spindle runs at elevated speed for extended periods. Mechanical dimensions begin with a 200 frame size, which gives the outer diameter and bolt-circle pattern needed for installation in spindle housings of the same class. The internal copper windings use the 4C winding variant, matching the electrical characteristics expected by the connected drive. For electrical connection, a 1.5 m loom exits from the non-drive end, helping keep routing inside the machine envelope and reducing exposed cable length near moving assemblies.

The unit is suitable for third-party drives, so it can be paired with inverters from different vendors when the electrical match is appropriate. Its axial stack uses motor length code E, which provides a balance between power density and available cooling surface. Embedded NTC resistors, PTC resistors, and bimetals provide temperature feedback and overheat protection signals for the control system. The module is a stator for 1MB frameless spindle motor, meaning it is supplied without its own housing or bearings and is intended to become part of a custom spindle assembly. That format gives the machine designer freedom to choose the surrounding mechanical support and sealing arrangement.