Aluminium High Load Blocks
A range of high strength blocks designed for use with wire ropes or in exceptionally rugged conditions.
Cheeks are manufactured from marine-grade aluminium, ‘Spectro’ grey annodised and running on nylon bearings to reduce friction under load.
Reinforcing plates, rivets and shackle straps are all from 316 stainless steel.
Break Loads
Where break and safe working loads are stated, it is assumed that all sheaves are evenly loaded with a straight lead.
Loads are not given for upright blocks as this is dependent on fastenings used.
High Load Wire Rope Blocks
Available in fixed eye version. Cheeks are manufactured from 316 stainless steel and sheaves are precision turned from solid brass bar, running on a stainless steel centre bush.
Brass Sheave Blocks
A simple lead block with turned brass sheave and stainless steel fixed eye strap.
Upright Blocks
With heavy duty 316 stainless steel side plates. Sheaves are precision turned from solid aluminium bar, silver annodised and running on nylon bearings to reduce friction under load.
38mm Dimensions: Base 38 x 45mm. Fastenings: 5mm
51mm Dimensions: Base 51 x 55mm. Fastenings: 6mm
Backstay Tensioner Blocks
Featuring laser-cut stainless steel side plates with precision turned brass sheaves. For use on twin or split backstays – for backstay wire of up to 10mm Ø.
Part | Sheave Ø | | | Sheave Width | | | Rope Ø | | | Wire Ø | | | Break Load | | | Safe Work Load | | | Weight | |
Aluminium Single Fixed Eye | 51mm | 15mm | 12mm | 4mm | 1750kg | 875kg | 155g | |||||||
Aluminium Single Fixed Eye | 63mm | 18mm | 16mm | 5mm | 3000kg | 1500kg | 248g | |||||||
Brass Sheave Single Fixed Eye | 35mm | 8mm | 4mm | 4mm | 400kg | 200kg | 67g | |||||||
Brass Sheave Single Fixed Eye | 45mm | 8mm | 5mm | 5mm | 750kg | 375kg | 106g | |||||||
Upright Single Fixed Eye | 38mm | 12mm | 8mm | 4mm | N/A | N/A | 92g | |||||||
Upright Single Fixed Eye | 51mm | 15mm | 12mm | 5mm | N/A | N/A | 160g | |||||||
High Load Fixed Eye | 45mm |