SS241LG12 by Danaher

The Danaher SS241LG12 synchronous motor delivers precision-controlled motion with robust performance as part of the Slo-Syn Synchronous Motors series. Designed around a NEMA 24 frame, this AC motor features a 12:1 gear ratio that amplifies torque while reducing output speed, ideal for industrial automation tasks requiring consistent low-speed rotation. The SS241LG12 operates at 5 rpm at 50 Hz or 6 rpm at 60 Hz, enabling precise indexing and positioning. Rated for continuous-duty cycles, it withstands demanding operational profiles with minimal maintenance. Integrated into a rugged housing, this motor ensures reliable, repeatable performance in assembly, packaging, and process control environments.

Detailed technical characteristics define the SS241LG12’s versatility. It supports dual-frequency operation at 50 and 60 Hz from either 120 V or 240 V single-phase supplies, using an external capacitor to generate the necessary phase shift for synchronous drive. The motor delivers an output torque of up to 450 oz-in and a guaranteed minimum holding torque of 1566 N-cm (2218 oz-in). Maximum load inertia capacities are 311 kg·cm² (106 lb·in²) for single-phase, 50 Hz; 798 kg·cm² (273 lb·in²) for single-phase, 60 Hz; and 798 kg·cm² (273 lb·in²) in three-phase operation. The internal motor design allows an internal speed up to 72 RPM, feeding the geared output for smooth motion.

Operational features focus on stability and lifecycle performance. A high pole count synchronous design ensures exact synchronization with line frequency, producing virtually no slip and negligible speed variation under load. The high-torque geartrain reduces output jitter, delivering uniform rotation and smooth acceleration profiles even at low speeds. Built to endure continuous-duty cycles, the SS241LG12 maintains consistent performance across varying loads and environmental conditions, with minimal vibration and mechanical wear. Simplified start-stop control via single-phase input and capacitor-run operation eliminates complex drive electronics, reducing system cost and footprint.

System integration is streamlined through the standardized NEMA 24 mounting footprint and dual-voltage compatibility, enabling direct replacement or upgrade in existing installations. The SS241LG12 is compatible with PLC-based motion controllers, motor starters, and position feedback modules for closed-loop control. Its precise low-speed output and high torque make it well-suited for indexing tables, conveyor drives, labeling machines, and robotic end-effector positioning. Target applications include industrial automation, material handling, packaging, and any process requiring controlled, repeatable motion under varying operational demands.