Conveyor Idler Roller | Belt Conveyor Roller for Mining and Bulk Material Handling
Conveyor Idler Roller | Belt Conveyor Roller for Mining and Bulk Material Handling
1.Technical Specifications
| Nominal Diameter mm | Diameter DV mm | Diameter DH mm | Rib Height mm | Spiral Rib Bottom Width mm | Pitch mm | Cross Section Area mm2 | Theoretical Weight kg/m |
| 15 | 15 | 15 | 1 | 4.5 | 10 | 176 | 1.47 |
| 18 | 18 | 18 | 1.2 | 4 | 10 | 254.5 | 2.11 |
| 20 | 20 | 20 | 1.3 | 4.8 | 10 | 314 | 2.47 |
| 25 | 25 | 25 | 1.6 | 6 | 12 | 490.9 | 4.1 |
| 32 | 32 | 32 | 2 | 7 | 16 | 804.2 | 6.65 |
| 36 | 36 | 36 | 2.5 | 8 | 18 | 1018 | 8.41 |
| 40 | 40 | 40 | 3 | 8 | 20 | 1256.6 | 10.34 |
| 50 | 50 | 50 | 3 | 9 | 24 | 1963.5 | 16.28 |
| 63.5 | 63.5 | 63.5 | 3 | 12 | 22 | 3167 | 26.2 |
| 75 | 75 | 75 | 3 | 12 | 22 | 4418 | 36.9 |
2. Applications
Bridge Prestressed steel bars can be used in any concrete engineering project which requires high strength, stiffness and crack control.
Common use cases include:
• Bridge construction
• Prestressed concrete beams
• Highway and railway bridges
• Precast concrete engineering
• Tunnel and underground construction
• Foundation anchorage systems
• Slope support and reinforcement
• Retaining walls
• Large scale civil infrastructure
• Post-tensioning concrete members
3. Advantages
Concrete structures prestressed with steel bar perform better under a variety of conditions. By placing the concrete into compression, steel prestressing can help limit tensile cracking, increase member stiffness and strengthen load-bearing capabilities.
Prestressed bars are better suited for use in long-span bridges and other concrete members that experience heavy loads. The ribbed surface provides excellent adherence to concrete while the high strength steel core ensures superior tensioning strength.
4. Custom Options
Provide us with your project drawing and specific engineering requirements and we will supply you with the prestressed steel bars you need.
Options Include:
• Diameter
• Length
• Rib Profile
• Surface Condition
• Steel Grade
• Thread and anchoring system
• Packing
• Cutting to custom length
5. FAQ
5.1 What is a bridge prestressed steel bar?
A bridge prestressed steel bar is a type of high strength steel reinforcement that is used in bridges. It’s applied to put the concrete under compression which enhances strength, resistance to cracking and durability.
5.2 Where can I use prestressed steel bars?
Bridge, highways, railways, tunnels, precast concrete beams, anchorage systems, and many other concrete structures that require prestressing.
5.3 What sizes are available?
Available sizes include 15mm, 18mm, 20mm, 25mm, 32mm, 36mm, 40mm, 50mm, 63.5mm and 75mm.
5.4 Can the bars be cut to custom length?
Yes. Bars can be cut to custom lengths to match your engineering drawings and project needs.
5.5 Why should I use prestressed concrete?
Prestressed concrete is better at handling tensile stresses, reducing cracks, and increasing load capacity. Prestressing concrete can significantly increase its service life.
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We deliver complete support for underground reinforcement applications, covering: Mining roof and sidewall support systems Tunnel reinforcement solutions Slope stabilization engineering support Foundation anchoring systems Underground safety structural systems From early-stage project planning to on-site application, we help customers build safer and more stable underground environments.
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