ZOOMRY
1. Product Overview
ZOOMRY spiral idler rollers are self-cleaning return-side idlers for bulk material conveyor systems. A welded steel helix on the roller shell directs sticky carryback toward the roller edges during rotation — helping maintain a more consistent roller profile in coal, clay, wet ash, and sticky mineral applications. Available in roller diameters from 76mm to 219mm and lengths from 190mm to 3,500mm.
For a detailed explanation of the self-cleaning mechanism and comparison with rubber disc return rollers, see our steel spiral return roller flagship page.
The spiral return roller helps maintain a consistent roller profile by directing carryback toward the roller edges.
2. Key Features
Welded Steel Helix Surface — Directs sticky carryback toward the roller edges during rotation, helping reduce buildup near the belt center in coal and clay return-side applications.
Labyrinth Seal Arrangement — Non-contact labyrinth seal design helps protect the bearing assembly from dust and moisture ingress while maintaining low rotational resistance.
High-Precision ERW Roller Pipe — Q235 carbon steel pipe with excellent roundness and straightness for well-balanced rotation and reduced vibration.
C3-Clearance Deep-Groove Ball Bearings — C3 clearance can be selected to accommodate operating temperature and fit conditions. Bearing protection is supported by the roller's external labyrinth seal arrangement. Bearing options: SKF, FAG, NSK, LYC, HRB.
Multiple Surface / Spiral Options — Painted, rubber-coated, welded steel spiral, or galvanized configuration available to match operating environment and material conditions.
3. Production Range & Configuration Options
| Parameter | Available Configuration |
|---|---|
| Roller Diameter | 76 – 219 mm |
| Roller Length | 190 – 3,500 mm |
| Roller Pipe | Q235 carbon steel, high-precision ERW seam pipe |
| Shaft | Cold-drawn bright round steel with strict tolerance control |
| Bearing | Deep-groove ball bearing, C3 clearance (selected per application) |
| Bearing Brand | SKF, FAG, NSK, LYC, HRB (project-specific selection) |
| Seal Arrangement | Non-contact labyrinth seal — dust and moisture protection with low rotational resistance |
| Surface / Spiral Options | Painted / Rubber-coated / Welded steel spiral / Galvanized |
| Welding | Mixed gas shielded arc welding |
| Color | Black, red, blue, yellow (customizable) |
| Standards | Available to project-specific requirements based on applicable ISO, CEMA, JIS, DIN, or GB standards |
Production range and configuration options shown for reference. Final roller dimensions, bearing selection, shaft diameter, and shell wall thickness are confirmed against application requirements during quotation.
What Information Do We Need for Spiral Idler Roller Selection?
- Belt width, conveyor length, and belt speed
- Material type, moisture content, and carryback location (center vs full width)
- Required roller diameter, length, shaft diameter, and bearing size
- Required roller construction and corrosion protection — welded steel spiral, painted, rubber-coated, or galvanized configuration
- Operating environment — dust, moisture, temperature range, and corrosion conditions
Related Solutions
Need Spiral Idler Rollers for Your Return Side?
Tell us your belt width, material type, and current return roller buildup issues — our engineers will confirm the appropriate spiral idler roller configuration.
Request Spiral Idler Roller Recommendation →
