The Wonder of Snatch Blocks
A Snatch Block is a great aid to winching operations:
- By increasing load pulling capacity
- By facilitating a change of direction of the pull if required
- By improving life expectancy of the winch and rope through reducing the strain applied on them
Using one snatch block allows you to 'double the rope', which in turn doubles the lifting/pulling capacity of the snatch block and winch arrangement. If additional snatch blocks can be used in conjunction with the winch, it will further increase load pulling capacity.
The diameter of your wire rope dictates which snatch block(s) you require (for further information go to our website: Winching & Accessories/ Blocks & Shackles/ Lightweight Snatch Blocks).
For example, on an 8 mm dia. wire rope, by incorporating one snatch block (by looping the wire rope around the pulley of the snatch block and anchoring rope to an anchor point on the truck), you will double the pulling capacity from 2276kg to 4552kg, BUT, be aware, this will reduce, by half, the speed at which the winch is able to operate. If you can incorporate a second snatch block, this will further increase the capacity by an additional 2276kg, and so on.
Additionally, if you are unable to position your truck to pull a load in a straight line, by adding snatch blocks you can alter the angle of the pull.
Cardno offer a range of Lightweight Oil Industry Snatch Blocks with a 4:1 Factor of Safety.
To select the correct block for your needs, refer to the Wire Rope diameter, in the table below.
All blocks have Roller Bearings except the 2 & 4 tonne blocks which have Special Bronze Bushes.
NOTE: All of our snatch blocks are supplied with certification.
- Cardno Sales Team