Hoist Unit
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This page explains how Hook Block 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 lifting component that houses the hook and connects it to the hoist mechanism.
Technical details and manufacturing context for Hook Block
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Capacity | 5–100 t | Maximum load the hook block can safely liftISO 4301-1 |
| Working Load Limit | 5–100 t | Same as rated capacity for normal useISO 4301-1 |
| Hook Opening | 50–250 mm | Determines the size of sling or shackle that can be attachedISO 2768-1 |
| Hook Material | 20–35 CrMo | Alloy steel for high strength and toughnessGB/T 10051.1 |
| Safety Factor | 4–6 | Ratio of breaking load to working load limitISO 4301-1 |
| Operating Temperature | -40–85 °C | Below -40°C material becomes brittle; above 85°C strength decreasesISO 4301-1 |
| Pulley Diameter | 200–800 mm | Affects rope bending fatigue and service lifeISO 4301-1 |
| Rope Diameter | 10–40 mm | Must match the pulley grooveISO 4301-1 |
| Weight | 50–5000 kg | Depends on capacity and configuration |
| Dimension (L×W×H) | 300×200×400–2000×1500×2500 mm | Overall size varies with capacity |
| Surface Treatment | Painted–Galvanized | Corrosion protection for outdoor useISO 12944 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Not applicable (mechanical component) |
| other spec: | Maximum Working Load Limit (WLL): 1-500 tons, Duty Cycle: A5-FEM/ISO standard |
| temperature: | -40°C to +150°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.
4 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 hook block provides a secure attachment point for the load and redirects the force from the hoist's wire rope or chain through its sheaves, allowing for efficient lifting.
Hook blocks are typically made from alloy steel or forged steel, which offer high strength and toughness to withstand heavy loads and harsh conditions.
Selection should be based on the rated capacity, working load limit, hook opening, rope diameter, and other parameters specified by the manufacturer. Always verify these values with the legal manufacturer for your specific application.
Regular inspection for wear, deformation, or damage is essential. Lubricate bearings and sheaves as recommended, and ensure the hook block is used within its specified operating temperature and environmental conditions.
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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