The H-Lift Snatch Block with Shackle Head is a heavy-duty, manually operated sheave block designed to redirect wire ropes and cables for flexible lifting, rigging, and pulling operations.
AS 2089 Certified: Fully complies with Australian Standard AS/NZS 2089, ensuring rigorous safety and performance in demanding environments.
Robust Construction: Manufactured with a high-tensile steel body and a durable cast steel sheave for maximum strength and wear resistance.
Flexible Load Handling: Effectively redirects the path of wire ropes or cables to facilitate easier and more efficient lifting angles.
Industrial Grade: Widely utilized across mining, construction, offshore rigging, marine, and other heavy-duty lifting applications.
Heavy Duty Mining & Offshore Blocks (2 Ton - 50 Ton)
*Easy Reeving: Side plate opens to allow wire rope insertion without removing the end fitting.
Product Features
Certified to AS 2089: Designed and manufactured in strict compliance with AS/NZS 2089 standards, ensuring the highest level of safety for Australian, New Zealand, and global mining/offshore projects.
Heavy Duty Capacity: Available in a wide range of Working Load Limits (WLL) from 2 Ton up to 50 Ton, capable of handling extreme loads in harsh environments.
Premium Construction: Features a high-tensile steel body and a robust cast steel sheave for superior strength and impact resistance.
Smooth Operation: Fitted with heavy-duty roller bearings and grease nipples for easy lubrication, ensuring low friction and long service life.
Secure Connection: Equipped with a drop-forged bow shackle head, providing a secure and articulated connection point that aligns with the load.
Easy Reeving: The classic snatch block design with a rotating side plate/gate allows for quick insertion of the wire rope without removing the end fitting.
Versatile Fit: Suitable for wire rope diameters ranging from 8mm up to 50mm (depending on capacity).
Technical Specifications
*Refer to the diagram above to identify dimensions A2, B, and C in the table below.
Item No.
Sheave Dia.
Capacity
Shackle Spec
Dimensions (mm)
Wire Rope Dia.
Net Weight
Product Code
(mm)
(t)
-
A2
B
C
(mm)
(kg)
SB07502-AS
75
2.0
-
286
82
70
8 - 9
4.0
170907502
SB11504-AS
115
4.0
-
345
120
70
10 - 13
6.1
170911504
SB15004-AS
152
4.0
-
400
160
70
10 - 13
13.8
170915004
SB15008-AS
152
6.0
-
480
160
94
13 - 16
15.0
170915008
SB20008-AS
203
8.0
-
530
210
93
16 - 18
16.0
170920008
SB25010-AS
254
10.0
-
680
260
115
18 - 20
37.5
170925010
SB30012-AS
305
12.0
-
767
310
133
20 - 22
56.0
170930012
SB30015-AS
305
15.0
-
788
310
133
24 - 26
65.0
170930015
SB35522-AS
355
22.0
-
952
365
140
28 - 32
90.0
170935522
SB50030-AS
510
30.0
-
1256
514
162
32 - 36
210.0
170950030
SB60050-AS
610
50.0
-
1525
625
240
44 - 50
418.0
170960050
Heavy Duty Snatch Block Guide
Overview, Calculations & Safety Instructions
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
*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.
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