Steel Roller

ZOOMRY Steel Roller is a high-load, precision-machined conveyor roller for mining and cement belt conveyors. Service life exceeds 50,000 hours with IP66 sealing and precision bearings.

Compared to our HDPE roller, the steel roller offers higher load capacity and impact resistance — ideal for abrasive ores and heavy lump sizes.

Parameter	Value
Product Name	Steel Roller for Conveyor System
Material & Belt Width	Carbon Steel; 500 – 2,400 mm
Service Life & Certification	> 50,000 hours; ISO 9001, CEMA, DIN
Applications	Mining, Cement, Port, Power Plants

Product Detail
Quality Standards
FAQ
Related Resources

Steel Roller Overview

ZOOMRY steel conveyor rollers are heavy-duty Conveyor idler components engineered for carrying and return side support in abrasive mining, coal, cement, and port bulk-handling applications. Manufactured with Q235 carbon-steel shells, precision bearings, and multi-stage labyrinth sealing, these steel rollers for conveyor systems deliver high load capacity and impact resistance for demanding bulk material operations.

Available in diameters from 89 mm to 219 mm and belt widths from 500 mm to 2,400 mm, ZOOMRY steel rollers are the preferred choice for high-load, high-impact applications where structural strength is critical. Final roller diameter, shell thickness, bearing type, and sealing arrangement are selected according to conveyor duty and operating conditions.

ZOOMRY steel conveyor roller for mining and heavy-duty <a href=https://www.zoomryhi.com/belt-conveyor.html target='_blank'>belt conveyor</a> applications

ZOOMRY Steel Roller — Precision-Machined for High-Load Belt Conveyor Systems

Steel Roller vs HDPE Roller: Material Selection

Feature	Steel Roller	HDPE Roller
Load Capacity	High — ideal for heavy ore, coal, aggregates	Moderate — suited for lighter materials
Impact Resistance	Excellent — withstands large lump sizes and drop impacts	Good — absorbs shock but lower ultimate strength
Corrosion Resistance	Moderate — requires coating for wet environments	Excellent — naturally resistant to acids, alkalis, and salt
Service Life	Extended service life under normal operating conditions	Extended service life — particularly in corrosive environments
Best Application	Mining, Cement, Quarry	Fertilizer, Salt, coastal ports

Steel Roller Specifications

Shaft Series	Roller Diameter (mm)	Shell Wall (mm)	Nominal Shaft (mm)	Bearing	Dynamic Load Rating (N)
20	89	3	20	6204-2RS	12,700
	102	3.5
	114	3.5
	127	3.8
25	102	3.5	25	6205-2RS	14,000
	114	3.5
	127	3.8
	133	4
	139	4
	152	4
	159	4
27	127	3.8	25	6305-2RS	22,500
	133	4
	139	4
	152	4
	159	4
32	127	3.8	30	6306-2RS	28,100
	133	4
	139	4
	152	4
	159	4
35	152	6	35	6307-2RS	33,200
	159	6
	178	6
40	152	6	40	6308-2RS	41,000
	159	6
	178	6
	193	6
	219	6
45	152	6	45	6309-2RS	52,700
	159	6
	178	6
	193	6
50	178	6	50	6310-2RS	61,800
50	193	6	50	6310-2RS	61,800
60	178	6	60	6312-2RS	81,900
60	219	6	60	6312-2RS	81,900

Standard series shown. Custom roller diameters, shaft sizes, and bearing configurations available upon request. Final selection depends on belt width, material load, belt speed, and operating environment.

Why Choose ZOOMRY Steel Rollers

Multi-Stage Labyrinth Sealing: Restricts dust and moisture ingress; IP66-rated configuration available for specified conditions.
Precision Bearings: Bearing selection based on roller diameter, load duty, and speed requirements — supporting stable rotation.
Low Rolling Resistance: Precision bearings and balanced shell construction contribute to low rotation resistance for specified configurations.
Wide Belt Width Coverage: Available for belt widths from 500 mm to 2,400 mm.
Design Standards: Roller dimensions, shaft details, and bearing arrangements can be configured to project requirements based on applicable JIS, CEMA, SABS, AS, DIN, ISO, or GB standards.

Video

Steel Conveyor Roller Manufacturing

Conveyor Idler Roller Assembly

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Need Steel Conveyor Rollers for Your Belt Conveyor?

Tell us your belt width, roller diameter, and operating environment — our engineers will recommend the right steel roller configuration for your application.

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Eight Quality Indicators for Steel Conveyor Rollers

ZOOMRY tests steel conveyor rollers against eight quality indicators to support reliable performance in mining, coal, and heavy-duty bulk handling applications:

Radial Runout: Affects conveying stability and belt tracking consistency. Lower runout values support smoother belt travel.
Axial Play: Impacts roller service life and bearing performance under side load conditions.
Rotation Flexibility: Affects belt life and drive power consumption. Flexible rotation reduces belt friction.
Waterproof Performance: IP66-rated sealing configuration available for wet or washdown environments such as ports and coal preparation plants.
Dustproof Performance: Multi-stage labyrinth seals help restrict particle ingress in mines, quarries, and cement plants.
Axial Load Capacity: Influences durability when rollers operate under belt misalignment or heavy side load conditions.
Impact Resistance: Withstands material loading shocks at crusher discharge and transfer points without deformation.
Rotation Resistance: Low rolling resistance helps limit belt wear and energy consumption over long operating hours.

Quality inspection items are performed according to order scope and product specification. Contact ZOOMRY for detailed test data for your specific roller configuration.

Steel Conveyor Roller FAQ

Q: What is a steel conveyor roller and how is it different from an HDPE roller?

A steel conveyor roller is a rotating idler component with a carbon-steel shell, designed for high-load and high-impact bulk material handling. Compared with HDPE rollers — which are preferred for corrosive environments — steel rollers for conveyor systems offer higher load capacity and superior impact resistance, making them the standard choice for mining, coal, and aggregate applications.

Q: How do I choose the right steel roller diameter and bearing for my belt conveyor?

Roller diameter and bearing selection depend on belt width, material load, belt speed, and operating environment. Standard diameters range from 89 mm to 219 mm, with bearing types from 6204 to 6312. Larger diameters and higher-rated bearings are recommended for wide belts and high-tonnage operations. Share your existing roller dimensions for a compatibility review.

Q: What is the difference between steel rollers and steel idler rollers?

The terms are often used interchangeably. A steel roller refers to the individual rotating shell component. A steel idler roller is the same component assembled with shaft, bearings, and seals — ready for installation in a conveyor idler frame. ZOOMRY supplies both individual rollers and complete idler assemblies.

Q: When should I replace steel conveyor rollers?

Replace steel rollers when you observe increased rotation resistance, excessive radial runout, seal damage, or visible shell wear that affects belt tracking. Regular inspection should include bearing play, seal integrity, and roller surface condition. For replacement, provide your existing roller diameter, length, bearing type, and mounting dimensions.