Large DMM Impact Block

Designed for use when loads may be dropped into rigging with considerable impact forces.

The combination of high quality materials and advanced production processes has ensured a rope friendly, durable and robust product. During the design process, each Impact Block has gone through a thorough dynamic and static testing regime, the end result is a highly functional product with an impressive strength to weight ratio.

Features:

• Rounded edges to the cheekplates maintain low rope abrasion when rope is fed ‘unfair’.
• Fairlead flares help maintain high working efficiency.
• Thrust surfaces increase tolerance to external loading of spindle and anchor pin.
• The lightweight attachment sling facilitates hauling of the block, sling and rope to the climber and helps with handling, in-tree stowage and workshop storage.
• Direct connection to cordage; the anchor sling helps ensure correct neighbour component compatibility.
• High efficiency oilite bushings to reduce friction.
• Colouring follows EU WLL protocol.
• Individual serial marking.
• Made in Wales, UK.

Technical specifications:

• CE certification to European Machinery Directive 2005
• Hot forged cheek plates in 6082-T6 aluminium for high strength to weight ratio
• CNC machined from 6082-T6
• Anodised to EN-12373-1:2001 Class I0EI Sealed for corrosion protection
• Stainless Steel 303 hollow spindle (IMB-L only)
• Stainless Steel 303 anchor pin (IMB-S), or 174 anchor pin (IMB-L)
• Efficient and robust Bronze self lubricating oilite bushings
• 6082-T6 aluminium alloy sheaves

Performance

• Minimum breaking strength [MBS]: 300kN
• Working Load Limit [WLL]: 60 kN
• Maximum rope diameter: 20 mm
• Weight: 3.47kg