Product Description:

The STF5356-3749-61-45BC-CU is a permanent-magnet washdown motor manufactured by Kollmorgen as part of the STF Washdown Motors series. It is built for automated process lines that require frequent sanitation, so the stainless housing resists caustic cleaners while protecting the windings from moisture. The unit converts regulated DC supply into shaft rotation that can drive conveyors, augers, or pumping equipment in food, beverage, and pharmaceutical areas where water spray is routine. Its sealed exterior also helps reduce places where residue can collect around the motor body.

The motor delivers a continuous armature current of 7.1 A, enabling it to maintain 54.0 lb-in of torque during rated duty. Because the enclosure style is TENV, it operates without forced ventilation, and heat is shed through the frame while contaminants are kept out. That closed design is useful in wet process areas where open cooling paths could collect debris or cleaning fluid. The armature inductance of 11.20 mH affects current rise time, so the drive must account for stored magnetic energy during rapid torque changes. Sealing is reinforced by an IP65 enclosure rating that prevents dust ingress and withstands low-pressure washdown jets. A 145TC NEMA frame allows direct C-face mounting to standard gear reducers and pumps.

For short bursts, the winding can sustain 70.0 A, supplying high acceleration torque without exceeding thermal limits. At its rated mechanical output of 1.5 HP, the shaft turns at 1750 RPM, a speed that matches common pump and mixer requirements while moderating bearing loads. With a 180 V DC supply, the armature resistance is 1.11 Ω, and the 7.90 lb-in/A torque constant gives a predictable relationship between current and output torque. The 0.8750-inch shaft transmits torque directly, and the 65 lb overall mass adds thermal inertia that can slow temperature rise during continuous production runs and repeated washdown cycles.