Troughing Rolls are used on the carrying side of a belt conveyor when loose material needs a curved belt profile. They guide the belt into a trough shape and help reduce material loss between loading and discharge points. The roller body can use galvanized steel, sprayed steel, or rubber-coated material. The internal bearing area uses a labyrinth sealing structure to reduce dust and water entry. When the line carries sticky, wet, or uneven material, the trough shape and stable roller spacing improve belt contact compared with flat support only.
Product Parameters
|
Parameter |
Specification |
|
Assembly form |
Trough roller set for carrying belt side |
|
Roll body material |
Steel tube, composite material, or rubber-coated steel |
|
Seal type |
Internal and external labyrinth sealing |
|
Grease |
Lithium-based grease filling |
|
Surface color |
Galvanized silver, black rubber, or sprayed finish |
|
Matched conveyor |
Mining, port, power, cement, and aggregate belt lines |
Main Applications
Stockpile conveyors moving coal, ore, gravel, and similar bulk material. These working areas are common for troughing rolls.
Conveyors before screening or crushing where the material is loose and uneven.
Outdoor lines needing stable belt support under dust and rain exposure.
Transfer stations where belt spillage must be controlled.
Components
Left roll, center roll, and right roll in a trough layout.
Roller shaft, bearing, bearing seat, and sealing rings.
Mounting points connected to the conveyor frame.
Optional self-aligning or forward-tilted roll design.
FAQ
Q: Are these rolls different from flat rollers?
A: Yes. Flat rollers support a flat belt, while these rolls form a trough profile for bulk material. The troughing rolls can be produced after checking belt width, frame angle and shaft end form.
Q: What surface is used for abrasive material?
A: Rubber-coated or galvanized steel surfaces are selected according to abrasion and site conditions.
Q: What information is needed for production?
A: Belt width, frame layout, roller diameter, shaft end form, and site environment are usually checked.
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