Product Description:

The ADF104C-B05TA1-CS07-A2N2 is a liquid-cooled asynchronous main spindle motor manufactured by Bosch Rexroth Indramat for the ADF Main Spindle Motors series. Designed for continuous machining operation, the unit uses circulating coolant to remove heat so the spindle can sustain high speeds without thermal drift. It serves as the primary rotational drive in CNC cutting, grinding, or turning centers, converting electrical energy into mechanical torque while maintaining dimensional accuracy in automated production lines. This operating profile suits machine tools that must hold stable spindle speed during long cutting cycles and repeated load changes.

The motor uses frame size 104 and length code C, a combination that gives it the active iron length and power density needed for mid-range spindle duties. The motor attaches directly to the machine casting through a flange mounting interface, which helps keep the tool axis concentric with the bearing seats. Rotor vibration is controlled by balance class S DIN ISO 2373, reducing runout and supporting smooth rotation at operating speed. The motor uses standard precision bearings for spindle service. Position and speed data are transmitted through digital servo feedback with an integrated encoder, allowing closed-loop vector control across the full load range.

For applications that rely on external clamping devices, the motor is delivered without a holding brake, which removes brake friction surfaces and shortens the overall length. Power conductors are routed toward Side A, and the connection housing is placed on the top of the stator so cables can clear nearby coolant lines. The supply is terminated through a rugged connector/plug pair sealed to the stator body. The output shaft is plain and has no keyway, while the opposite end remains blank because no second shaft end or shaft seal ring is installed. This layout keeps the electrical connection area separate from the cooling hardware around the motor body.