Heavy-Duty Star Rotary Airlock Feeder
HSX Star Rotary Feeders utilize a multi-vane closed-pocket rotor rotating inside a precision-machined cylindrical housing. Engineered for continuous volumetric metering of dry powders and granular bulk materials while maintaining a positive pressure differential in pneumatic conveying and dust collection lines.
Model Series & Engineering Parameters Precision Airlock Feeder
| Model Series | Inlet Diameter (mm) | Rotor Volume (L/rev) | Motor Power (kW) | Rotor Speed (RPM) | Capacity (m3/h) |
|---|---|---|---|---|---|
| SRF-150 | Ø150 / 150×150 mm | 3.5 L/rev | 0.75 kW | 15 – 30 RPM | 2.5 – 5.0 m3/h |
| SRF-250 | Ø250 / 250×250 mm | 12.0 L/rev | 1.50 kW | 15 – 25 RPM | 8.0 – 15.0 m3/h |
| SRF-350 | Ø350 / 350×350 mm | 35.0 L/rev | 2.20 kW | 12 – 22 RPM | 20 – 38 m3/h |
| SRF-500 | Ø500 / 500×500 mm | 90.0 L/rev | 4.00 kW | 10 – 18 RPM | 45 – 80 m3/h |
| SRF-800+ | Ø800 / 800×800 mm | 250.0 L/rev | 7.5 – 15 kW | 8 – 15 RPM | Up to 180 m3/h |
Ordering Nomenclature Guide: SRF - [Rotor Dia mm] - [Rotor Type: Open/Closed] - [Body Grade: CI/SS] - [Ex].
High Precision Volumetric Metering & Sealing
Precision 0.08mm rotor-to-body clearance minimizes gas blow-by.
Precision CNC Machined Clearance
Tight 0.08mm clearance between rotor tips and housing wall ensures minimal gas leakage in pressure lines.
Outboard Bearings & Air Purge Seals
Bearings are mounted completely outside the product stream with pressurized nitrogen/air purge seals.
Anti-Pinching Beveled Inlets
V-shaped shearing throat deflector prevents granular pellets from jamming between rotor blades and casing.
Replaceable Polyurethane / Alloy Tips
Adjustable and replaceable rotor vane tips ensure maintainable factory sealing clearance year after year.
Proven in Severe Plant Environments
Delivering high thrust and zero-drift actuation across critical heavy industrial facilities.
Pneumatic Conveying Systems
Dense phase and dilute phase fly ash, cement powder injection.
Baghouse Dust Hoppers
Rotary airlock discharge beneath pulse jet fabric filters.
Food & Chemical Powders
Flour, sugar, polymer resin pellets, PVC powder continuous dosing.
Biomass & Wood Pellets
Boiler rotary fuel feeder with explosion isolation certification.
Request Technical Quotation & Sizing Proposal
Submit your required parameters, operating duty, or project drawings for Heavy-Duty Star Rotary Airlock Feeder. Our export engineering team will review your specifications and provide an official quotation within 24 hours.