ABS XRW 330-480-750

Summary

Product identification

The Sulzer ABS XRW series comprises premium submersible mixers available in types 330, 480, and 750. These mixers feature a special 2-blade mixed-flow propeller and are designed for compact, versatile use in aggressive and abrasive liquids.

Main industries and applications:

• Pulp, paper and board
• General industry
• Water and wastewater
• Sewage treatment plants and industrial areas for mixing and stirring applications such as:
  • Equalization of sewage
  • Biological processes (aerobic, anoxic and anaerobic)
  • Selector (contact zone)
• Homogenization of highly concentrated sludge and slurries, including:
  • Primary, secondary and digested sludge in storage and buffer tanks
  • Lime and mineral slurries

Operating limits

• Hazardous locations: Certification for ATEX (Ex II 2G k Ex d IIB T4), FM and CSA available as an option.
• Bearing lifetime: Calculated lifetime of more than 100,000 operating hours, lubricated for life.
• Thermal protection: TCS (Thermo Control System) provides a warning or automatically switches off the motor before the permissible temperature limit is exceeded.

Electrical

• XRW 330 and 480: Premium Efficiency (IE3-equivalent) sensorless permanent-magnet motor controlled by variable-frequency drive (VFD).
• XRW 750: Energy-saving, Premium Efficiency IE3 asynchronous motor.

Motor efficiency:

• XRW 330: up to 88%
• XRW 480: up to 91%
• XRW 750: up to 92.3%

Mechanical / Hydraulic

General features:

• Special 2-blade mixed-flow stainless steel propeller, hydraulically optimized for high mixing performance and self-cleaning.
• Triple seal system with dual oil chamber.
• Enhanced mechanical seal protection system to keep the seal clog-free and extend life.
• Large, long-lasting bearings (calculated lifetime of more than 100,000 operating hours, lubricated for life).
• Large rotor shaft to minimize deflection.
• Sealed connection chamber.
• Abrasion-resistant galvanically insulated guide tube and suspension to reduce electrochemical corrosion.
• TCS (Thermo Control System) for motor protection.

XRW 330 and 480 specific features:

• Premium Efficiency (IE3-equivalent) sensorless permanent-magnet motor controlled by variable-frequency drive (VFD).
• Pre-loaded upper bearing to prevent spinning and eliminate backlash.
• Sealed connection chamber with quick-connection block for simplified maintenance.

XRW 750 specific features:

• Energy-saving, Premium Efficiency IE3 asynchronous motor.
• Robust planetary gearbox designed for high reliability and long operating life.
• Strong bearing configuration in motor and gearbox.
• Multiple moisture sensor (DI) seal monitoring for full protection of motor and gearbox.

Performance data:

XRW 330

• Propeller diameter: 330 mm / 13 in
• Motor power:
  • 50 Hz: 3 – 5 kW
  • 60 Hz: 3 – 5 kW / 4 – 6.7 hp
• Mixing flow: up to 0.28 m³/s / 4’438 USgpm

XRW 480

• Propeller diameter: 480 mm / 19 in
• Motor power:
  • 50 Hz: 7.5 - 10 kW
  • 60 Hz: 7.5 - 10 kW / 10.1 – 13.4 hp
• Mixing flow: up to 0.53 m³/s / 8’400 USgpm

XRW 750

• Propeller diameter: 750 mm / 30 in
• Motor power:
  • 50 Hz: up to 15 kW
  • 60 Hz: up to 13 kW / 17.4 hp
• Mixing flow: up to 1 m³/s / 15’850 USgpm

Materials

Mixer part, XRW 330, 480 (CR - stainless steel)

• Motor housing: 1.4404 (AISI 316L)
• Motor shaft: 1.4401 (AISI 316)
• Propeller: 1.4571 (AISI 316)
• Fasteners: 1.4401 (AISI 316)

Mixer part, XRW 750

• CR (stainless steel) version:
  • Motor housing: 1.4571 (AISI 316)
  • Motor shaft / propeller shaft: 1.4021 / EN-GJS-700
  • Propeller: 1.4571 (AISI 316)
  • Fasteners: 1.4401 (AISI 316)
• EC (cast iron) version:
  • Motor housing: EN-GJL-250 painted
  • Motor shaft / propeller shaft: 1.4021 / EN-GJS-700
  • Propeller: 1.4571 (AISI 316)
  • Fasteners: 1.4401 (AISI 316)

Disclaimer: This summary is based on the provided text extract. The extraction process may miss figures, footnotes, or subsequent revisions. Contractual data for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

Lenntech datasheet mirror