They are used for feeding high moist and sticky characteristic materials, which cause clogging of vibrating feeders, to the crushers.
What Are Wobbler Feeders and How Do They Work?
A wobbler feeder consists of parallel shafts carrying elliptical (egg-shaped) discs. As the shafts rotate in the same direction, the discs both convey the material forward and agitate it, so clay and fines drop through the gaps.
This allows the wobbler feeder to feed and pre-screen continuously in wet, clayey and sticky material where vibrating grizzlies clog.
Applications
- Clayey limestone and river gravel
- Damp and sticky run-of-mine ore
- Removing clay and soil ahead of the crusher
- Plants with clogging problems in the rainy season
Selection Checklist
- Number of shafts and disc spacing chosen for the separation size
- Speed control (frequency inverter) for feed-rate control
- Discs and shafts made of wear-resistant material
- Drive chain and bearings protected against dust
Main Spare Parts for Wobbler Feeders
- Elliptical discs and shaft assemblies
- Drive chain, sprockets and gear reducer
- Bearings and housings
- Wear plates
Frequently Asked Questions
What is the difference between wobbler and vibrating feeders?
A vibrating feeder can clog in wet, clayey material; a wobbler feeder keeps agitating the material with its rotating discs and runs without clogging on sticky feed.
How is a wobbler feeder maintained?
Check disc and shaft wear, chain tension and lubrication and bearing temperature regularly, and replace worn discs in time.
Detailed guides: feeder types, sand and gravel plants, feeder spare parts.