Why Jiulongbi Stone Rollers Beat Steel Rollers
Discover how Jiulongbi stone conveyor rollers improve corrosion resistance, reduce wear, and extend service life in phosphogypsum conveyor systems compared with traditional steel and stainless steel rollers.
The Challenge: Corrosion in Phosphogypsum Conveying
In phosphogypsum transportation systems, conveyor rollers operate under extremely harsh conditions.
At a key pipe belt conveyor section (230#–258#), operators were facing persistent issues:
- Highly corrosive phosphogypsum slurry
- Material sticking and buildup on the belt
- Rapid corrosion of steel window-type rollers
- Frequent roller failures within 1–3 months
- Increased belt wear caused by unstable rollers
- High maintenance frequency and rising operational cost
Traditional Q235B steel rollers could not withstand the acidic environment. In many cases, roller failure occurred in less than one month under heavy load conditions.
This resulted in:
- Over 1,300 roller replacements per year
- Frequent shutdowns for maintenance
- Increased labor and spare part costs
- Reduced conveyor system stability
A more durable solution was urgently required.
The Solution: Jiulongbi Stone Window-Type Rollers
To address this issue, Xiamen Envision Roller Technology Co., Ltd. introduced Jiulongbi stone window-type conveyor rollers for field testing.
These rollers are made from natural Jiulongbi stone, a high-hardness material with strong resistance to:
☑ Acid and alkali corrosion
☑Abrasive wear
☑Moisture and high-humidity environments
☑Long-term mechanical stress
A total of 24 rollers were installed on the most critical section of the conveyor system, where both load and corrosion levels were highest.
Field Test Results After 3 Months of Operation
After three months of continuous operation, the performance differences became clearly visible.
1. Stable Operation Without Failure
During the entire test period:
☑ No roller cracking or breakage
☑ No abnormal vibration or noise
☑ No impact on conveyor alignment
☑ Stable rotation under continuous load
This is critical in phosphogypsum systems where downtime is costly.
2. Dramatically Reduced Wear
Wear comparison after operation:
☑ Jiulongbi stone roller: only 0.1 mm diameter change (3 months)
☑ Stainless steel roller: noticeable surface indentation and 1.6 mm wear
☑ Q235B steel roller: corrosion peeling and 1.1 mm wear
👉 The stone roller maintained near-original geometry even after long-term exposure to corrosive slurry.
3. Superior Corrosion Resistance
Unlike steel-based rollers, Jiulongbi stone rollers showed:
☑ No visible rust or corrosion
☑ No surface layer peeling
☑ No structural degradation
Steel rollers, especially Q235B, showed obvious corrosion damage in the same environment within weeks.
4. Lower Friction and Stable Rotation
Test results based on standard conveyor performance indicators showed:
☑ Lower rotational resistance than steel rollers
☑ Stable radial runout (0.22–0.4 mm range)
☑ Smooth operation under load
This helps reduce belt resistance and energy consumption in long-distance conveying systems.
5. Service Life Advantage
While steel rollers often require replacement within 1–3 months in this environment, Jiulongbi stone rollers showed no performance degradation after 3 months of operation, indicating a significantly longer expected service life.
Cost vs Lifecycle Value
Although the initial unit price of Jiulongbi stone rollers is higher than conventional steel rollers, the lifecycle cost advantage is clear:
Steel rollers:
- Low initial cost
- Frequent replacement
- High downtime cost
- High labor maintenance cost
Jiulongbi stone rollers:
- Higher initial investment
- Long service life
- Reduced replacement frequency
- Lower total operating cost
In long-term heavy-duty industrial applications, the stone roller delivers better overall ROI.
Application Scenarios
Jiulongbi stone conveyor rollers are especially suitable for:
☑ Phosphogypsum transportation systems
☑ Mining and mineral processing conveyors
☑ Chemical and corrosive material handling
☑ High-moisture industrial environments
☑ Long-distance bulk material conveying systems
A More Durable Solution for Corrosive Conveyor Systems
The 3-month field test confirms that Jiulongbi stone window-type conveyor rollers provide a significant performance upgrade over traditional steel rollers.
Key advantages include:
- Strong corrosion resistance
- Excellent wear performance
- Stable mechanical operation
- Reduced maintenance frequency
- Lower lifecycle cost
For industries operating in highly corrosive environments, Jiulongbi stone rollers offer a practical and scalable solution to improve conveyor reliability and efficiency.
Get In Touch
Address
Unit 803, Qidu, Wushi Business Center, No. 768, Qishan North Road, Huli District, Xiamen, China
Email Us
sales@EnvisionRoller.com
Call Us
+86-592-2681031
+86-130-630-86860