Helical Speed Reducer RF167 DRN250M4 Sew Portal Gear Unit

Our premium SEW gear motors and helical speed reducers are robust, high-performance power transmission solutions built to serve industrial clients worldwide. Designed for dependable continuous operation, all motor versions follow the S1 duty rating, which allows non-stop running at full rated load without thermal overload or performance drop-off. This continuous-duty capability makes these units ideal for production lines, material handling machinery and automated systems that demand long-hour, trouble-free operation.

For European market requirements, three reliable motor variants run at 1500 rpm under S1 operation. The DRE model delivers consistent power output with universal industrial parameters, easy to pair with SEW helical speed reducers for most standard transmission tasks. The DRP series adopts refined internal design to boost efficiency and cut energy waste during continuous running. The DRS motor complies strictly with European manufacturing norms, offering outstanding durability and minimal maintenance for heavy-duty industrial equipment. Every European-spec model comes with full, documented technical data packages to satisfy local safety and compliance rules.

We also supply region-adapted motor options for Australia and New Zealand, also rated at 1500 rpm with S1 continuous duty. The DRS, DRE and DRP motors for ANZ markets are adjusted for local voltage conditions and site environments. Retaining the core strengths of SEW gear motors, including precise power transfer, strong load capacity and stable running performance, these regional variants meet local industrial standards and certification requirements. They help factories in Australia and New Zealand simplify equipment integration and reduce unexpected downtime.

Beyond the main motor specifications, we provide full technical documentation for BE brakes fitted to DR series AC motors. The BE brake data sheet covers all critical performance metrics and installation guidelines to guarantee seamless matching with DR AC motors. To accommodate different braking torque and load needs across machinery types, these auxiliary brakes are available in a wide selection of standard sizes. You can select the correct brake dimension according to your actual working load, whether for light precision braking or heavy-load emergency stop applications.

Accurate operating current values for all supported brakes are also listed in our technical materials. These current figures help engineers during circuit design, electrical cabinet setup and routine maintenance checks. With clear brake current data, maintenance teams can quickly identify abnormal electrical conditions and prevent premature brake wear or braking failure. All the organised technical information helps equipment designers, procurement managers and maintenance teams to select, install and maintain SEW helical speed reducers and gear motors confidently. Whether you are upgrading existing machines or designing new transmission systems, this structured technical reference delivers all essential details for your project evaluation and product selection.