Side-mounted rotary feeders are precision bulk handling components used to meter powders, granules, and pellets. The side inlet design allows installation in low-headroom areas and works well in pneumatic conveying systems. It maintains an effective airlock, preventing air loss and material backflow while delivering consistent discharge.
These high-efficiency feeders use a rotating rotor with multiple pockets. As the rotor turns, material enters through the side inlet and moves to the bottom outlet. The rotor blades form a continuous airlock that stops air leakage and ensures accurate volumetric feeding in dilute-phase and dense-phase conveying systems.
The housing is precision machined to maintain tight clearances with the rotor tips, minimizing air leakage and improving accuracy. The rotor is dynamically balanced to reduce vibration, noise, and wear, thereby extending the service life of bearings and shaft seals. Contact parts can be made of carbon steel, stainless steel, or abrasion-resistant alloys. Optional hard-facing or ceramic coating is available for highly abrasive materials.
Each feeder has a large-diameter shaft and heavy-duty bearings, providing excellent strength under heavy loads. Stuffing-box or cartridge shaft seals prevent dust leakage and keep process materials contained. For higher-pressure duties, a purge gas connection can be added to improve sealing and prevent material from entering bearing zones.
Closed, open, and adjustable/expanded rotors are available. Closed rotors minimize product smearing and suit pressure differential applications. Open rotors handle free-flowing powders, while adjustable rotors allow clearance adjustment after normal wear. This modular design makes the feeder versatile for chemical, food, pharmaceutical, mineral, cement, and plastic industries.
The feeder supports mixing, weighing, batching, and metering processes. It is compatible with vacuum conveyors, pressure vessels, dust collectors, grinding mills, and silo discharge systems. Sizes range from low-capacity units to large feeders with discharge volumes of tens of liters per revolution. It is also ideal for adding additives, recovered materials, or granular raw materials in continuous production lines.
Installation is simple. The feeder bolts directly to equipment frames, and the side inlet orientation can be arranged according to the pipeline layout, reducing elbows and preventing blockage. Clear drawings and standard flanges are supplied for different pipe sizes. Mounting flanges can be manufactured according to ANSI, DIN, or GB standards to match existing equipment.
Proper maintenance keeps the feeder reliable. Inspect rotor tip clearance, bearing temperature, and motor current regularly. The internal chamber is easy to clean through the cleanout cover, reducing cross-contamination between batches. Grease intervals and replacement schedules follow the manual, and our technical team supports troubleshooting, replacement parts, and field service support.
All feeders are inspected and tested before shipment, including dimensional checks, dynamic balance tests, and no-load running tests. The quality management system ensures that every machine meets international standards and performs reliably in demanding environments. Customers can choose motor power, reducer, variable frequency drive, and flange types to meet exact process requirements.
As a professional side-mounted rotary feeder manufacturer, we offer efficient rotary feeder prices without compromising quality. OEM/ODM services include custom rotor materials, surface treatments, explosion-proof motors, and special shaft seals. Every feeder is backed by a factory warranty and after-sales support. Contact us today for detailed specifications, a quotation, and technical recommendations.
Shandong Headpowder Engineering Co., Ltd.
156-6277-7102(Manager Zhang)
0531-83386006
Zhangqiu District, Jinan City, Shandong Province, China 
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