Page 308 - Green Pin Product Catalog

BLOCKS BLOCKS

Applications

Blocks are used in lifting systems, to change load
direction or to drag a load. Blocks and the wire ropes

they contain make a connection between a load and

a lifting device.

Range

®
Green Pin offers a wide range of blocks. Blocks are available for head loads ranging from 2 t up to 30 t.
Other types of blocks can be offered upon special request.
Design

There are different types of blocks with specific designs to suit particular purposes. All types are fitted with
conical roller bearings. These can be used for applications with different frequency of use and line speeds.
Snatch blocks can be opened up to fit the wire rope easily. There is no need to thread the wire rope through
the block.

All types are generally marked as follows:
• Working Load Limit - e.g. 8 t
• manufacturer’s symbol - e.g. GP
• wire rope diameter in mm and inches - e.g. 20 - 22 mm and /4 - /8 inch
3
7
• serial number - e.g. 1234567
• CE conformity code - CE
Finish

®
Green Pin Blocks are painted.
Certification

Specific details of certificate availability can be found on each product page. Please verify your certification
requirements at the time of order.

Instructions for use

Blocks should be inspected before use to ensure that:
• all markings are legible;
• a block with the correct WLL has been selected;
• the WLL applies to static loads only, the possible occurrence of shock loading must be taken into account
when selecting a block;
• the block may never be side loaded but may only be used for in-line use;
• always make sure that the hook, eye or shackle of the block is supporting the load correctly;
• the pin, nut, cotter pin, or any other locking system cannot vibrate out of position;
• the sheaves are functional and rotate easily;
• blocks are free from nicks, gouges and cracks;
• blocks may not be heat treated as this may affect their WLL;
• never modify, repair or reshape a block by machining, welding, heating or bending as this may affect
9 the WLL.
Blocks must be regularly inspected in accordance with the safety standards and regulations given in the
country of use. This is required because the products in use may be affected by wear, misuse, overloading
etc. which may lead to deformation and alteration of the material structure. Inspection should take place
at least every six months and more frequently when the blocks are used in severe operating conditions.

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