0.25T x 1.5m Vital Lever Block (VLB202)
$285.00 ex. GST
THESE HEAVY DUTY lever blocks are extremely sturdy, highly versatile, suitable for a multitude of lifting, pulling, tensioning and securing applications. Used extensively in shipbuilding, mining, forestry, power transmission, construction etc.
- Made in Japan from optimum high quality steel to conform to the strict J.I.S and I.S.O regulations.
- Vital have been manufacturing lever blocks since 1933 and is recognised globally.
- One touch operation for free chain adjustment.
- Unique bottom hook prevents slipping and ensures safe operation.
- Hardened special alloy steel load chain with embossed identification mark to relevant standards.
- Fitted with Grade 100 load chain.
- Tensioning and securing loads
- Frequently used in the mining
- Construction industries
- Some models of Vital Lever Blocks can now be fitted with overload protection.
Free-wheeling type lever blocks have a minimum load requirement to ensure that the braking system remains operative and continues to support the load. In most cases, this minimum load requirement can be up to 10% of the Working Load Limit of the lever block – i.e. 150kg for a 1.5 Tonne Lever Block, 300kg for a 3Tonne unit etc.
There is a possibility that should the load not be sufficient to activate the braking system that the unit could malfunction and it is for this reason that free-wheeling type lever blocks should not be used in tandem. Should one of the units being used as a pair take an increase in the shared load and the other’s is reduced to below the minimum as stated above, then the one with the reduced share of the load may suffer from an inoperative brake and the load could fall.
There are 2 types of Vital Lever Block. The NR type has a “free-wheeling” braking system which falls into the above category and the VR type which has a “lock-in and lock-out” braking system.
The Vital NR lever block is ideal for use where fast, one-handed operation of the free-wheeling system is required.
The Vital VR lever block is the more traditional style with a free-wheeling system requiring the disengagement of the gear drive mechanism, something that is impossible with any load suspended on it. Both models comply with relevant Australian Standards.