Customer Service: (800) 268-2141
WesSpur Customer Service Number

    1 (800) 268‑2141 (M‑F 7AM to 5PM)

Login or change user || View Account

Your cart:  Items,  View Cart || Checkout

 DMM 3/4” Impact Block  The upper sheave and screw are captive - no chance of losing pieces in the tree. Block accepts 3/4” slings and 3/4” ropes Save on a combo sling & block kit
DMM 3/4” Impact Block image

DMM 3/4” Impact Block

DMM 3/4” Impact Block

Buy DMM 3/4” Impact Block

DMM 3/4” Impact Block
PUL308
Block with 3/4” x 8’ Loopie
PUL308S

The DMM Impact Block is a premium arborist block designed not only for incredible strength but also for premium performance. The most eye-catching feature of the block is the incredible strength, but it is more than just a rugged piece of gear. The Impact Block is designed to be rope-friendly on all surfaces. The 3/4” version of the Impact block has a hollow stainless steel spindle which opens up advanced rigging options. The lower sheave is over 4" wide for a wider bend radius that preserves more strength in the rigging line.

This premium arborist block is suitable for medium to heavy tree rigging. See the videos tab for an overview as well as videos of the testing process DMM went through to develop the Impact Block.

Purchase this kit as a package with a 3/4” x 2-8’ Loopie sling and save.

PUL308

This Item Ships free!* No-hassle Returns Ask A Question

Additional Features

  • All edges smoothed for rope-friendly use
  • Captive upper sheave knurled screw lock
  • Wide bend radius on lower sheave
  • Loop for convenient hanging of block on saddle with rigging intact
  • Advanced rigging options through spindle
Manufacturer : DMM
Made in : UK
MBS : 45,000 lb ( 200 kN)
WLL (5:1) / (10:1) : 9,000 lb (40 kN) /4,500 lb (20 kN)
Max Rope Diameter : 3/4”
Max Sling Diameter : 3/4”
Sideplate Material : Anodized, hot-forged aluminum
Sheave Material : Aluminum
Axle Material : Stainless steel spindle
Upper Sheave Diameter : 2 1/8”
Lower Sheave Diameter : 4 1/4”
Height : 8.875”
Width : 4.75”
Weight : 7.65 lb

Certifications

  • NFPA 1983 (06ED) Class G
  • EN795(b):1997
  • EN12278:2007
  • CE Approved

DMM Impact Block Data Sheet

Download the Impact Block PDF Flyer

ANSI Z133-2017

The American National Standards Institute (ANSI) has released the ANSI Z133 safety requirements which apply to arboriculutral operations. Components of a rigging system must be used within their Working Load Limits.

The DMM 3/4” Impact Block is ANSI compliant when used within the manufacturer Working Load Limits.

A green log weight chart (found in the Samson Rigging Wheel) will aid in determining loads in tree rigging.

The full ANSI Z133 safety requirements are available on our tree care standards page.

Customer Reviews

Add your own review

Email Newsletter

Free WesSpur Catalog

Customer Service

WesSpur Facebook Icon WesSpur YouTube Channel Icon WesSpur Instagram Icon