Dragline Excavator
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This page explains how Fairlead is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A device used to guide and protect cables or ropes on a dragline excavator, preventing abrasion and ensuring proper alignment during operation.
Technical details and manufacturing context for Fairlead
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Load Capacity | 50–200 kN | Maximum working load per fairlead |
| Cable Diameter Range | 20–80 mm | Must match rope size to prevent wear |
| Roller Diameter | 150–400 mm | Larger reduces bending stress |
| Roller Material Hardness | 45–55 HRC | Hardness for abrasion resistanceASTM A532 |
| Operating Temperature Range | -40–85 °C | Below -40°C material brittleness risk |
| Ingress Protection Rating | IP54–IP65 | Protection against dust and water jetsIEC 60529 |
| Surface Treatment Thickness | 80–120 μm | Hot-dip galvanizing for corrosion resistanceISO 1461 |
| Weight | 150–500 kg | Depends on size and material |
| Bearing Type | 6205–6215 | Deep groove ball bearings for low frictionDIN 625 |
| Maximum Rope Speed | 2–5 m/s | Exceeding may cause overheating |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Fairlead.
This component is essential for the following industrial systems and equipment:
| pressure: | Not applicable (mechanical component) |
| other spec: | Max cable diameter: 50-200 mm, Max dynamic load: 50-500 kN, Wear life: 10,000-50,000 cycles |
| temperature: | -40°C to 120°C |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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The fairlead guides the dragline cable from the winch drum to the boom point sheave or bucket, maintaining proper alignment, reducing friction and wear, and preventing cable jumping or fouling.
Common materials include high-strength steel, alloy steel, and polyurethane or nylon liners, which provide strength and abrasion resistance.
Key parameters include rated load capacity, cable diameter range, roller diameter, roller material hardness, operating temperature range, ingress protection rating, surface treatment thickness, weight, bearing type, and maximum rope speed. Always verify with the manufacturer.
By guiding the cable along a predetermined path with sheaves or rollers, the fairlead minimizes side load and abrasion, ensuring smooth movement and even spooling on the winch drum.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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