ZOOMRY
1. Product Overview
ZOOMRY idlers for conveyor systems are engineered across the full CEMA B/C/D/E range for mining, coal, power, cement, and bulk material handling applications. From light-duty CEMA B to extra heavy-duty CEMA E, our Conveyor idlers cover belt widths from 18 to 96 inches in carrying, return, impact, self-aligning, V-return, rubber disc, and spiral configurations. Each idler is manufactured with precision bearings, multi-stage labyrinth seals, and a choice of Q235 steel, HDPE, ceramic, or stainless steel roller shells.
With over 20 years of conveyor component manufacturing experience, ZOOMRY idlers are exported to mining operations, coal handling plants, power stations, steel mills, cement plants, fertilizer facilities, and port terminals worldwide. Our specialized assembly processes precisely control bearing endplay, while advanced seal technology delivers long-lasting performance without re-lubrication in dusty and corrosive environments.
2. Idler Configurations Across the Conveyor System
A belt conveyor requires different idler types at different positions along its length. The carrying side supports the loaded belt with troughing idlers at 20°, 35°, or 45° angles — equal or unequal roller configurations depending on material and tracking requirements. The return side supports the empty belt with flat, V-return, or self-cleaning rubber disc rollers. At loading zones, impact idlers with rubber cushion rings protect the belt from falling material. Self-aligning idlers with pivot frames and guide rollers correct belt drift on both carrying and return sides.
ZOOMRY manufactures all these configurations under one roof — from standard CEMA C equal troughing idlers to specialized CEMA D rubber disc return idlers. This breadth means one supplier for all idler positions, with consistent sealing standards and bearing specifications across the entire conveyor — simplifying spare parts management and maintenance planning.
3. Key Features
Full CEMA Range — CEMA B, C, D, and E ratings covering belt widths from 18" to 96" — a single source for all light-duty through extra heavy-duty idler requirements in cement and aggregate conveyor systems.
Multiple Roller Materials — Q235 carbon steel for standard applications, HDPE for corrosive environments, ceramic for extreme abrasion resistance, and 304/316 stainless steel for food-grade or high-chloride conditions.
Advanced Multi-Stage Labyrinth Sealing — Proprietary seal design protects bearings from dust, moisture, and contaminants — delivering extended service life without re-lubrication in mining and coal handling environments.
Precision Bearing Assembly — Deep groove ball bearings from SKF, FAG, ZWZ, or HRB with controlled endplay settings reduce rotation resistance and energy consumption across the conveyor.
Corrosion Protection Options — Hot-dip galvanizing, epoxy painting, or stainless steel construction available for fertilizer, salt, and chemical industry applications.
4. CEMA Idler Series Comparison
| CEMA Rating | Duty Class | Roller Diameter | Belt Width Range | Typical Application |
|---|---|---|---|---|
| CEMA B | Light-Duty | 4" / 5" | 18" – 48" | Small conveyors, sand, gravel, grain |
| CEMA C | Medium-Duty | 4" / 5" | 18" – 60" | Aggregate, cement, coal, industrial |
| CEMA D | Heavy-Duty | 5" / 6" | 24" – 72" | Mining, large aggregate, overland conveyors |
| CEMA E | Extra Heavy-Duty | 6" / 7" | 36" – 96" | High-capacity mining, port terminals |
What Information Do We Need for Idler Selection?
- Belt width, conveyor length, belt speed, and capacity
- Material type, bulk density, lump size, and moisture content
- CEMA rating required and trough angles for carrying sections
- Operating environment — dust, corrosion, temperature range, and washdown needs
- Existing idler specifications, frame dimensions, and whether this is a retrofit or new installation
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 CEMA Rating and Configuration Do You Need?
Tell us your belt width, material characteristics, and operating conditions — our engineers will recommend the optimal idler series, roller material, and seal configuration.
Request Idler Selection Guide →
