Impact bars are composite wear spare parts fitted inside conveyor impact beds at loading and transfer zones. Made of UHMWPE sliding layer, high elastic rubber cushion and metal T-base, they absorb heavy falling material impact, deliver gapless continuous belt support and prevent conveyor belt puncture & longitudinal tear. Widely used for aggregate quarries, sand washing plants and coal processing sites. Custom sizes and flame-retardant anti-static mining types available.
Conveyor Impact Bar | UHMW Buffer Bar
Overview
Impact bars are critical conveyor wear parts installed inside impact beds, specially designed for belt conveyor loading points and material transfer drop zones. Featuring a three-layer composite structure — UHMWPE anti-wear sliding layer, high-elastic rubber shock absorption layer, and rigid metal base — our impact bars provide continuous flat belt support and strong buffer performance to eliminate belt damage caused by falling materials.
Compared with traditional impact idlers, impact bars deliver seamless belt support without gaps, effectively solving belt sagging, material spillage, dust leakage, belt puncture and longitudinal tearing problems. Widely used for heavy-duty mining, quarry, aggregate, sand washing and bulk material handling conveyor systems.
Disclaimer: All products are compatible replacement wear parts for general conveyor systems, not original brand genuine parts.
Working Principle & Core Function
- Heavy Impact Absorption: The high-elastic rubber layer instantly absorbs huge impact force generated by high-drop falling ore, stone, coal and sand, avoiding rigid collision damage to the belt.
- Full Continuous Belt Support: Zero-gap flat support prevents belt sagging, reduces material leakage and dust overflow at loading points.
- Belt Tear & Puncture Prevention: UHMWPE smooth surface avoids belt scratching, effectively preventing belt longitudinal tear and canvas layer delamination.
- Low Running Resistance: Ultra-smooth UHMWPE surface ensures flexible belt operation, no extra power consumption.
- Easy Maintenance: Modular single-bar replacement design, no need to disassemble the whole impact bed, greatly reducing downtime and maintenance cost.
Product Structure & Material Features
3-Layer Composite Structure
- Top UHMWPE Layer: Ultra-high molecular weight polyethylene, high wear resistance, anti-aging, smooth sliding
- Middle Rubber Buffer Layer: High elastic natural rubber, strong shock absorption, anti-compression and anti-tear
- Bottom Metal Base: Steel or aluminum alloy T-base, stable installation, anti-loosening, high structural strength
Material Performance Advantages
- High pure UHMW material, friction coefficient ≤ 0.15
- Elastic rubber resilience rate ≥ 65%
- Strong bonding technology, no delamination under long-term heavy impact
- Anti-oxidation, anti-UV, suitable for outdoor harsh working conditions
Technical Parameters
表格
| Item | Standard Parameter |
|---|---|
| Main Material | UHMWPE + High Elastic Rubber + Metal Base |
| Standard Length | 1000mm / 1200mm / 1500mm / 1800mm / 2000mm (Customized) |
| Standard Width | 100mm / 120mm / 150mm |
| Total Thickness | 50mm / 75mm / 100mm Heavy-duty type |
| Surface Hardness | UHMWPE: 60-65 Shore D |
| Rubber Hardness | 55-60 Shore A |
| Working Temperature | -40℃ ~ +80℃ |
| Base Type | Steel T-base / Aluminum alloy T-base |
| Special Version | Flame retardant / Anti-static for underground mining |
Applicable Materials & Working Conditions
Applicable Materials
Crushed stone, aggregate, granite, basalt, limestone, silica sand, washed sand, gravel material, coal, coal slime, mineral powder, ore, iron ore, gold ore, hard rock material, cement clinker, bulk powder and granular materials.
Applicable Industries & Scenarios
Aggregate quarry and stone crushing plant, sand washing and gravel processing plant, coal mine and coal washing plant, hard rock mineral processing plant, cement plant, port terminal, bulk material stockyard, high-drop heavy material conveying loading zones.
Our Core Advantages
- High Wear Resistance: Imported grade UHMWPE material ensures long service life under high friction conditions.
- Super Shock Absorption: High-density elastic rubber layer buffers heavy falling material impact effectively.
- No Belt Damage: Ultra-smooth surface protects conveyor belt from scratching and tearing.
- Integrated Bonding Process: Strict hot-press bonding avoids layer separation under continuous impact.
- Full Customization: Support custom length, width, thickness and special anti-flame, anti-static specifications.
- Flexible MOQ & Fast Lead Time: Support sample order, small batch and bulk container export.
FAQ
Q: What is the difference between impact bar and impact roller? A: Impact bars provide full gapless flat support, avoiding belt sagging and material leakage. Traditional impact rollers have gaps and easily cause belt deformation and tearing at heavy loading points.
Q: How long is the service life? A: Under normal aggregate and sand washing conditions: 8–18 months. For heavy hard rock and high-drop mining conditions: 6–12 months.
Q: Can you customize special sizes? A: Yes. We can customize any length, width, thickness and special mining flame-retardant anti-static versions.
Q: Where is the impact bar installed? A: Only installed at conveyor loading points and transfer drop zones inside the impact bed frame, not for ordinary conveying sections.
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