ZOOMRY
1. Product Overview
ZOOMRY Conveyor idlers are essential components that support the belt across carrying, return, and loading zones for smooth, efficient bulk material transport. Our range spans the full CEMA B/C/D/E spectrum — from light-duty to extra heavy-duty — covering belt widths from 18 to 96 inches. Each idler is built with precision bearings, multi-stage labyrinth seals, and a choice of Q235 steel, HDPE, ceramic, or stainless steel roller shells for mining, quarrying, cement, and industrial applications.
Two fundamental categories serve every conveyor: carrying idlers support the loaded belt on the top run, while return idlers support the empty belt on the bottom run. Within these categories, specialized types — impact, self-aligning, V-return, rubber disc, and spiral — address specific challenges such as loading zone impact, belt mistracking, and sticky material buildup. See how ZOOMRY idlers perform in long-distance curved conveyor projects.
2. Idler Types & Configurations
Carrying Idlers (Top Sets) — Support the loaded belt with troughing sets of three rollers at 20°, 35°, or 45° angles. Available in equal and unequal roller configurations. The most widely specified carrying side idler — see our troughing carrying idler range for detailed specifications.
Return Idlers (Bottom Sets) — Support the empty belt on its return path with flat, V-return, or self-cleaning rubber disc configurations. Browse our CEMA C return idlers for medium-duty return sections.
Impact Idlers — Equipped with rubber cushion rings to absorb falling material energy at crusher discharge and transfer points. These idlers help protect the belt from puncture and carcass fatigue. Also consider conveyor impact beds for additional loading zone protection.
Self-Aligning Idlers — Pivot-mounted frames with side guide rollers automatically correct belt drift on both carrying and return sides — no sensors, no power required. Explore our CEMA C self-aligning troughing idlers for automatic tracking correction.
3. Key Features
Full CEMA Coverage — CEMA B through E ratings for belt widths from 18" to 96", with roller diameters from 89mm to 219mm — one supplier for all idler positions across the conveyor system.
Precision Sealed Bearings — Deep groove ball bearings with multi-stage labyrinth seals keep out dust and moisture, reducing maintenance intervals and delivering extended service life in coal and mineral processing environments.
Shock Absorption — Impact idlers with rubber cushion rings help protect the belt and structure at loading zones — reducing splice fatigue and cover wear.
Automatic Belt Alignment — Self-aligning idlers correct belt tracking without external power, helping significantly reduce edge wear and material spillage in cement and aggregate applications.
Corrosion Protection — Available with hot-dip galvanized, powder coated, or stainless steel finishes for harsh, high-humidity, and chemical environments — including fertilizer and salt handling facilities.
4. Idler Type Selection Guide
| Idler Type | Position | Key Function | Best For |
|---|---|---|---|
| Carrying (Troughing) | Top run | Support loaded belt, contain material | All conveyor carrying sections |
| Return | Bottom run | Support empty belt, prevent sagging | All conveyor return sections |
| Impact | Loading zones | Absorb impact, protect belt | Crusher discharge, transfer points |
| Self-Aligning | Both runs | Correct belt mistracking | Long overland, reversible conveyors |
| V-Return | Bottom run | Self-centering return support | Mistracking-prone return sections |
| Rubber Disc / Spiral | Bottom run | Self-cleaning, shed carryback | Sticky materials — coal, clay, overburden |
5. Technical Specifications
| Specification | Details |
|---|---|
| Idler Types | Carrying, Return, Impact, Self-Aligning, V-Return, Rubber Disc, Spiral, Garland |
| CEMA Ratings | B, C, D, E |
| Trough Angles | 20°, 35°, 45° (custom available) |
| Roller Diameter | 89mm – 219mm |
| Bearing Type | Deep groove ball bearings, sealed (2RS), labyrinth seal |
| Shaft Diameter | 20mm – 40mm |
| Shell Material | Carbon steel, galvanized steel, stainless steel |
| Surface Finish | Painted, hot-dip galvanized, powder coated |
| Belt Width Range | 500mm – 2,500mm (18" – 96") |
| Operating Temperature | -30°C to +80°C |
Explore Our Full CEMA Idler Range
CEMA B Series · CEMA C Series · CEMA D Series · CEMA E Series
From light-duty CEMA B to extra heavy-duty CEMA E — carrying, return, impact, self-aligning, and self-cleaning configurations for belt widths 18" to 96".
Related Solutions
Which Idler Type and CEMA Rating Do You Need?
Tell us your belt width, material characteristics, and conveyor layout — our engineers will recommend the optimal idler types, CEMA rating, and roller configuration.
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