WEG W22 450M 355kW 6-Pole IE3 Motor

The WEG W22 450M 355kW 6-Pole IE3 motor delivers 985 RPM operation at the highest torque level available in standard LV motor configurations, providing 3440 Nm of continuous shaft torque for the most demanding large pump and fan direct-drive applications in Saudi Arabia and the GCC region. At this specification, the motor is typically project-specific and procurement is coordinated through Razz Middle East's project engineering team with WEG's special motors division.

Applications for the W22 450M 355kW 6P in the Saudi market include very large seawater desalination feed pumps, main cooling water pumps for power generation facilities, large raw water intake pumps for industrial water treatment plants, and high-capacity irrigation pump station drives. The combination of 985 RPM operation and direct coupling eliminates gearbox complexity while the high torque output minimizes shaft and coupling sizing requirements compared to higher-speed alternatives.

Saudi Electricity Company (SEC) power generation facilities at Riyadh, Jeddah, Qassim, and Mecca operate large boiler feed pumps, condenser cooling water pumps, and cooling tower fan drives where the W22 450M 355kW 6P is applicable. WEG motors are approved vendors for SEC's standard equipment programs, and Razz Middle East supports SEC procurement through our technical team's familiarity with SEC engineering specifications and procurement procedures.

The W22 450M 6P frame design incorporates an enhanced bearing arrangement with double row angular contact ball bearings at the drive end to accommodate the very high radial and axial loads associated with large directly-coupled pump impellers. Bearing housings are equipped with labyrinth-type shaft seals that prevent bearing contamination without the friction losses associated with contact lip seals—important for maintaining efficiency at this high power level where parasitic losses represent measurable percentage points of motor efficiency.

Winding protection for the W22 450M includes embedded Pt100 RTDs in all three phases (6 total), bearing Pt100 temperature sensors, and optional PTC thermistors for additional protection layer compatibility with diverse motor protection relay implementations. All protection device cables are routed to a separate auxiliary terminal box to isolate low-voltage signals from the high-power main terminal connections—an arrangement required by many large industrial operators' electrical safety procedures.

Long-term technical support for W22 450M motors is provided through Razz Middle East's authorized WEG service center network, which maintains WEG factory-trained technicians capable of performing in-situ bearing replacement, winding inspection, insulation resistance trending, and vibration analysis. For critical motors, Razz ME offers annual maintenance contracts that include scheduled inspection visits, condition data trending, and priority response to unplanned outage events.