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Home > Products > All Collections > Manual Lifting Equipment > Snatch Block > Heavy Duty Snatch Block

Heavy Duty Snatch Block

Name: Heavy Duty Snatch Block
Brand: H-Lift Industries Co Ltd
SKU: 1701
Availability: InStock
Rating: 5 (1 reviews)

No.1701

The H-Lift Heavy Duty Snatch Block is a robust pulley system designed for intermittent lifting and pulling. It safely redirects wire rope to provide a mechanical advantage, effectively increasing the pulling power of hoists and winches.

Attachment Options: Available with either a secure Hook (HB Type) or a heavy-duty Shackle (SB Type) for flexible rigging.
High Capacity: Engineered for extreme loads, offering working capacities ranging from 2 tonnes up to 125 tonnes.
Quick Rigging: Highly portable and designed for fast, easy installation across various work sites.
Industrial Durability: Built to withstand high stress in demanding environments like construction, shipyards, and off-road recovery.

Technical Data
Heavy Duty Snatch Block

*Versatile Heads: Choose Swivel Hook (HB) for quick attachment or Shackle Eye (SB) for secure rigging.

*Bearing Options: Bronze Bushings for static loads; Roller Bearings for high-speed dynamic loads.

Product Features

Massive Capacity Range: Offers one of the widest capacity ranges in the market, from 2 Ton up to 125 Ton (WLL), catering to everything from light towing to heavy offshore lifting.
Versatile Head Fittings: Available with two head styles: Swivel Hook (HB Type) with safety latch for quick attachment, or Shackle Eye (SB Type) for secure, long-term rigging.
Bearing Options: Choose between Bronze Bushings (for 2T & 4T / static loads) or heavy-duty Roller Bearings (for 8T+ / high-speed dynamic loads) fitted with grease nipples for easy maintenance.
Quick Reeving System: Features a classic side-opening design (snatch) that allows for fast insertion of the wire rope without removing the end fitting.
Wide Sheave Selection: Sheave diameters range from 3 inches (75mm) up to 38 inches (950mm), compatible with wire ropes from 7mm to 76mm.
Durable Construction: Made with a lightweight yet robust steel body and high-strength sheaves to withstand 4:1 safety factors.
Multi-Purpose: Ideal for changing load direction (doubling line pull) in towing, 4x4 recovery, construction, and logging operations.

Technical Specifications

*Refer to the diagram above to identify dimensions A1 (Hook Height), A2 (Shackle Height), B, and C in the table below.

Item No.		Sheave Dia.	W.L.L.	Dimensions (mm)				Wire Rope Dia.	Net Weight (kg)		Product Code
Hook	Shackle	(mm)	(t)	A1 (Hook)	A2 (Shackle)	B	C	(mm)	Hook	Shackle	Product Code
HB07502	SB07502	75	2.0	292	286	82	70	7-9	3.9	3.8	170107502
HB11504	SB11504	115	4.0	358	345	120	70	10-12	6.2	6.2	170111504
HB15004	SB15004	150	4.0	412	399	160	70	16-18	8.4	8.3	170115004
HB15008	SB15008	150	8.0	498	475	160	93	20-22	14.1	14.1	170115008
HB20008	SB20008	200	8.0	549	528	210	93	20-22	19.0	18.7	170120008
HB20015	SB20015	200	15.0	672	663	210	102	22-24	34.0	33.0	170120015
HB25010	SB25010	250	10.0	695	679	260	115	24-26	36.0	34.7	170125010
HB25012	SB25012	250	12.0	701	679	260	115	24-26	36.0	34.7	170125012
HB30012	SB30012	300	12.0	797	767	310	133	24-26	56.0	54.0	170130012
HB30015	SB30015	300	15.0	800	788	310	133	24-26	58.0	55.0	170130015
HB35522	SB35522	355	22.0	960	952	365	140	28-32	112.0	109.0	170135522
HB40022	SB40022	400	22.0	1027	1019	415	140	28-32	122.0	118.0	170140022
HB40030	SB40030	400	30.0	1085	1126	415	155	32-35	170.0	164.0	170140030
HB50030	SB50030	500	30.0	1177	1256	514	162	32-35	213.0	208.0	170150030
HB60050	SB60050	600	50.0	1445	1525	625	240	46-50	418.0	418.0	170160050
HB76085	SB76085	760	85.0	1960	1910	800	288	56-64	810.0	840.0	170176085
-	SB95125	950	125.0	-	2528	965	278	70-76	-	1363.0	170195125

What is a Snatch Block?

A heavy-duty snatch block is a pulley system designed to handle large loads and provide mechanical advantage during heavy-duty lifting and pulling operations. It consists of a sheave (grooved wheel) enclosed in a housing with an opening side plate, allowing the wire rope to be threaded without removing the end fitting.

Commonly used in off-road recovery, forestry, construction, shipyards, and industrial settings, snatch blocks allow operators to:

Change Load Direction: Navigate obstacles or align the pull with the winch.
Double Pulling Power: By running the cable through the block and back to an anchor point, you effectively double the mechanical advantage of the winch or hoist.

WLL & Load Calculation

⚠️ Important: Line Pull vs. Total Load

The Working Load Limit (WLL) marked on the snatch block is the maximum load allowed on the block and its connection point. The total load on the block is often different from the weight being lifted.

It is necessary to determine the total load imposed on the block to select the correct capacity. Use the formula:

Total Load = Line Pull Force × Angle Factor

Snatch Block Line Pull Angle Factor Chart

*Refer to the chart above to find the Angle Factor based on the angle between the rope lines.

Instructions for Use

Selection: Ensure a block with the correct WLL is selected. The WLL applies to static loads only; shock loading must be accounted for.
Inspection: Verify all markings are legible and the block is free from nicks, gouges, and cracks.
Alignment: The block must never be side-loaded. It is designed for in-line use only. Ensure the rope enters the sheave in the same plane to prevent damage.
Connection: Always ensure the hook, eye, or shackle supporting the load is correctly positioned and secured.
Operation: Ensure the sheaves rotate freely and functional properly.
Modifications: Never modify, repair, or reshape a block by machining, welding, heating, or bending, as this affects the WLL. Heat treatment is strictly prohibited.

⚠️ PROHIBITED: Do not use the block for lifting or transporting people. Do not lift loads over people.

Connection & Maintenance

Connecting the Block:

Shackle Type: Remove the shackle to attach the block. Reassemble ensuring the load bolt, nut, and safety cotter pin are secure.
Hook Type: Attach via the hook and ensure the safety latch closes completely.
Inserting Rope: Remove the safety hair needle pin and unscrew the quick bolt (or trunnion). Rotate the side plate to insert the wire rope onto the sheave, then reassemble securely.

Inspection Schedule:

Blocks must be inspected regularly in accordance with local safety standards. Wear, misuse, and overloading can lead to deformation. Inspection should take place at least every six months, or more frequently in severe operating conditions.