WEG W22 500M 450kW 6-Pole IE3 Motor

The WEG W22 500M 450kW 6-Pole IE3 motor is WEG's largest standard-catalog LV motor for 6-pole (985 RPM) applications, delivering 4363 Nm of continuous torque at the most demanding end of the direct-drive large pump market. At this power and torque level, the motor is a specialized procurement item that Razz Middle East handles through direct coordination with WEG's project motors team in Brazil, ensuring customer-specific requirements are incorporated into the order specification.

This motor's torque output of 4363 Nm positions it to drive the largest centrifugal pumps deployed in Saudi Arabia's critical water infrastructure. Very large seawater lifting pumps at coastal power and desalination complexes, main cooling water pumps at mega-scale petrochemical facilities, and large brine disposal pumps at inland desalination plants are representative applications. The 985 RPM direct-drive configuration eliminates gearboxes from these applications, with annual maintenance cost reductions of SAR 200,000–500,000 per installation compared to geared alternatives.

At SWCC's flagship Ras Al-Khair complex and the proposed new Jubail 4 desalination plant under development by NWC (National Water Company), the W22 500M 450kW 6P represents the motor specification for the very largest pumping systems. NWC's engineering standards specify WEG motors as one of three pre-qualified motor manufacturers for large motor procurement, and Razz Middle East is NWC's authorized distribution partner for WEG products in Saudi Arabia.

The motor's physical dimensions at 500M frame with 500mm shaft height require specialized installation equipment including hydraulic motor lifting frames, precision laser alignment tools calibrated for very large shaft separations, and hydraulic bolt tensioning equipment for foundation and coupling bolts. Razz Middle East's technical services team maintains this specialized tooling and can provide supervised installation services for customers without in-house capability for large motor installation.

Long-term operational data from W22 motors in similar applications globally confirms bearing life exceeding L10 = 40,000 hours in properly maintained installations, with several installations achieving over 100,000 operating hours before bearing replacement through optimal lubrication management. WEG's motor-specific lubrication specifications, provided with each motor, define lubricant type, quantity, and relubrication intervals based on operating speed, bearing size, and ambient temperature—critical parameters for the Saudi operating environment.