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4650 LSPM
Compact mixer with LSPM motor
Flygt 4650 LSPM combines a fixed-speed compact mixer with a line-start permanent-magnet motor. The LSPM design uses synchronous-motor efficiency while retaining direct-on-line starting. Its 50 Hz brochure lists 5–7 kW power, 900–2,000 N thrust and a 580 mm propeller. Backswept blades and a wide hub are designed for fibre handling. It is distinct from the standard 4650; assess motor construction, power supply and required thrust together.
Final performance and suitability are verified for the selected model and duty point.
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A solution for your application.
Application areas
Activated sludge and biological treatment basins · Equalisation and sludge holding tanks · Processes requiring solids suspension
Selection considerations
Determine thrust and positioning from tank dimensions, liquid level and solids concentration. Motor power alone is insufficient for selection.
Share tank dimensions, liquid level, temperature and solids concentration with our technical team. We can assess thrust, mixing objectives and installation together.
MANUFACTURER DATA
Technical specifications
| Motor power (50 Hz) | 5–7 kW |
| Thrust range (50 Hz) | 900–2,000 N |
| Propeller diameter | 580 mm |
| Motor type | Line-start permanent magnet (LSPM) |
| Installation | Submersible |
Motor power and thrust alone do not determine selection. Assess propeller diameter, tank geometry, liquid level and process conditions against the selected variant’s technical data.
DOWNLOADABLE RESOURCES
Technical documents
Open manufacturer PDFs and save them to your device. Check the model and document revision.
Frequently asked questions
What applications is Flygt 4650 LSPM used for?+
Flygt 4650 LSPM combines a fixed-speed compact mixer with a line-start permanent-magnet motor. The LSPM design uses synchronous-motor efficiency while retaining direct-on-line starting. Its 50 Hz brochure lists 5–7 kW power, 900–2,000 N thrust and a 580 mm propeller. Backswept blades and a wide hub are designed for fibre handling. It is distinct from the standard 4650; assess motor construction, power supply and required thrust together.
Where can I find technical catalogues and manuals?+
Use the PDF links in the Technical Documents section of this page to access manufacturer documents. Check the model, frequency and document revision before use.
What information is needed for selection and a quotation?+
Share flow, total head, liquid properties, temperature, power supply and installation conditions. Mixers also require tank dimensions, liquid level and solids concentration.
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