Conveyor Idlers: Troughing Idlers & Flat Idlers

Common Conveyor Idler Types

Troughing Idlers

• Purpose: Support the belt and material during transport.
• Configuration: Typically have three rollers: one horizontal (center roll) and two angled (wing rolls).
• Common troughing angles: 20°, 30°, and 45°.
• Applications: Used in bulk material handling to center and support the belt.

Impact Idlers

• Purpose: Absorb impact forces in loading zones to protect the belt.
• Features: Rubber-coated or cushioned rollers. Heavier-duty frames to handle material impact.
• Applications: Placed at transfer or loading points.

Picking Idlers

• Purpose: Used in manual sorting operations or for material centering.
• Configuration: Shallow troughing angles (e.g., 20° or less).
• Applications: Commonly used in industries like agriculture and mining.

Return Idlers

• Purpose: Support the belt on its return run (no material load).
• Features: Single flat roller or V-return roller configuration.
• Applications: Reduce sag in the belt during its return phase.

Self-Aligning Idlers

• Purpose: Correct belt misalignment automatically.
• Features: Pivoting mechanism that adjusts the belt's tracking.
• Types: Troughing self-aligning idlers and Return self-aligning idlers.

Transition Idlers

• Purpose: Provide gradual support for the belt as it transitions from the tail or head pulley to the troughing idlers.
• Troughing Angle: 10° or 15°.

Conveyor Idlers Configuration

Conveyor Idler Standard

CEMA(CEMA B, C, D, E, F), DIN, ISO, GB, AS, GOST, SANS, etc.

Common Roll Diameter

76 mm, 89 mm, 108 mm, 127 mm, and 152 mm.

Conveyor Idler Roller Materials

• HDPE
• Steel
• Stainless Steel
• Galvanized steel

Conveyor Idler Set Bracket Material

• Steel
• Stainless Steel
• Galvanized steel

Conveyor Idler Roller Numbers

It can include 1 roll, 2 rolls, 3 rolls, 5 rolls, and 6 rolls.