WEG W22 400M 200kW 6-Pole IE3 Motor

The WEG W22 400M 200kW 6-Pole IE3 motor delivers 985 RPM shaft power for the largest direct-drive pump and fan applications in the GCC industrial market. Producing 1938 Nm of continuous shaft torque at rated speed, this motor provides enough torque to directly couple to 2000–4000 m3/hr centrifugal pumps without the efficiency penalty and maintenance overhead of intermediate gearboxes or belt drives.

Saudi Aramco's water injection programs at Haradh, Khurais, and Manifa require very high-capacity water injection pumps operating continuously at high availability. The W22 400M 200kW 6P is ideally suited for these applications, providing the combination of high torque, moderate speed, and robust construction required for continuous-duty water injection service. The motor's standard IP55 protection, combined with optional Class H insulation upgrade for elevated-temperature service, ensures reliable operation in the demanding Eastern Province industrial environment.

The 6-pole design at 400M frame size provides unique acoustic advantages. Operating at 985 RPM compared to the 4-pole equivalent at 1480 RPM, the motor generates substantially less aerodynamic noise from the cooling fan, less electromagnetic noise from the stator, and less mechanical noise from the bearing system. This makes the W22 400M 6P a preferred solution for applications where noise abatement is a design criterion—including compressor and pump stations located near worker accommodation areas in remote Saudi oil field developments.

WEG's manufacturing quality for the W22 400M series includes dimensional inspection of all critical machined surfaces to ensure bore concentricity better than 0.05mm TIR, shaft runout below 0.02mm at the coupling location, and mounting feet flatness within 0.1mm. These precision tolerances are essential for maintaining shaft alignment in pump-motor sets over extended operating periods without requiring frequent realignment maintenance.

For Ma'aden's phosphoric acid and ammonia plants at Ras Al-Khair and Wa'ad Al-Shamal, the W22 400M 200kW 6P is specified for high-capacity slurry and process fluid pump drives. The motor is compatible with Ma'aden's preferred motor management systems and has been supplied through Razz Middle East for multiple plant expansion projects. Our technical team maintains motor-specific documentation packages that meet Ma'aden's procurement and quality requirements.

The terminal box on the W22 400M is sized for large cable entries appropriate to the 400A+ currents at 380V, with cable gland threads up to M75 on standard versions and larger entries available for multi-cable configurations. Ground terminal studs are sized for 95mm2 earth cable, meeting Saudi Standards Organization (SASO) grounding requirements and IEC 60364 earthing system specifications.