Striking a balance between performance and integration efficiency, SMARTWIN DH Modular Torque Motors resolve the dilemma of equipment drive selection

Striking a balance between performance and integration efficiency, SMARTWIN DH Modular Torque Motors resolve the dilemma of equipment drive selection

Automation machine builders have long faced a tough trade-off when picking rotary direct-drive components. Frameless DD motors deliver superior torque density with compact dimensions, yet they require customers to custom machine housings and tooling, bringing heavy workloads for mechanical design, assembly and commissioning. Integrated housed DD motors feature simple installation, but their bulky overall size fails to fit compact miniaturized equipment layouts. As a domestic independent manufacturer of direct-drive components, SMARTWIN Intelligent Equipment has launched the DH series modular torque motors. Combining the high-performance merits of frameless motors and the easy-mount advantage of finished housed motors, this range delivers a balanced, cost-effective domestic direct-drive solution for precision rotary stations with medium & light load requirements.

The DH Series adopts a direct-drive brushless structure. Its internal magnetic circuit is optimized via multiple rounds of simulation, which effectively reduces cogging torque. The motor runs smoothly under low-speed micro-indexing and frequent start-stop cycles, with speed fluctuation controlled within an extremely narrow range. Optimized winding arrangement boosts torque density, delivering outstanding torque output under the same mounting dimensions. The complete unit requires no intermediate transmission parts such as reducers or timing belts. The load is rigidly coupled directly to the motor rotor, fundamentally eliminating positioning errors caused by gear backlash and belt elastic deformation. It features superior load following performance and greatly improved overall system positioning accuracy. In addition, regular maintenance tasks including periodic replacement and lubrication of transmission components are eliminated.

The DH series covers six complete models:DH04, DH05, DH06, DH08, DH09 and DH13, featuring full torque gradient coverage for flexible model selection. The DH04 provides continuous torque of 4.1-13.9 N.m and peak torque of 12.1-39.2 N.m, ideal for compact multi-station rotary tables. The flagship DH13 delivers a maximum continuous torque of 492 N.m and a peak torque of 12.1-39.2 N.m, fully meeting the demands of heavy-duty tooling and large inspection rotary platforms. The entire series suits applications ranging from light-load precision fine-tuning to heavy-load automatic indexing equipment. Equipped with standardized housing and mounting flange as standard delivery, the motors adopt unified reference dimensions and follow conventional servo installation logic. No secondary machining, mold opening or custom base fabrication is required, greatly shortening equipment development and mass production cycles.

In terms of daily application and system matching, the DH series modular torque motors can be directly paired with self-developed SMARTWIN AKS servo drives. Compatible with the mainstream EtherCAT industrial bus and matched with SAR series absolute circular grating encoders, the motors can quickly build a high-precision closed-loop motion control system. The supporting debugging software features one-click parameter tuning, which greatly reduces on-site debugging difficulty and improves equipment deployment efficiency.

Featuring a compact overall structure, the motor effectively saves internal equipment installation space. The semi-closed housing prevents workshop dust from invading the internal magnetic circuit and core components, making it adaptable to various conventional automated production working conditions. Every motor undergoes strict factory tests including high and low temperature resistance, vibration resistance and full-load aging, ensuring verified operational stability and durability.

Currently, the DH series is widely applied in optical fine-tuning platforms, 3C sorting rotary tables, small lithium battery indexing equipment and other scenarios. It perfectly balances equipment performance, integration difficulty and long-term operation and maintenance costs, providing a cost-effective direct-drive solution for automation equipment.