
The Samson Log Impact Force Calculator (or "Rigging Wheel") is a handy tool for estimated peak loads on your Samson rigging lines in the field.
The Log Impact Force Calculator combines information from a Green Log Weight chart with the ratings for Samson Nystron or Stable Braid rope, and the length of lines in the system to help estimate peak force that will be applied in a negative-blocking situation. Operating the wheel is simple - on side A you use the wheel to find the mass for the piece of material being cut. On side B, the mass of the load found on side A is compared to a ratio of the legs of rope above and below the upper rigging block to get an estimate of the peak line tension the system will experience.
Full instructions for the Log Impact Force Calculator are included with each wheel. The wheel itself is made from durable, weather-resistant materials and will be a handy tool for rigging, especially in the training of new riggers. The use of the Log Impact Force Calculator is explained by Niceguydave in the video below.
boo915WesSpur offers free ground shipping for orders that meet the following criteria:
The free shipping offer covers UPS Ground. UPS Ground runs Monday-Friday. Stump Grinder teeth and Chipper Blades eligible for the free shipping offer are shipped via USPS Priority Mail, in Medium Flat Rate Boxes. UPS Ground requires a physical address for delivery (no P.O. boxes).
WesSpur is happy to offer returns or exchanges on any equipment that is still in new condition. Our return policy is fairly simple and is meant to make your life easy. All regular stock items in new/unused condition may be returned for a full refund less shipping within 30 days of purchase. We do not charge restocking fees.
WesSpur can not accept the return of any used equipment or special-order items.
See our full Returns and Warranty Policy on the help page
The American National Standards Institute (ANSI) has released the ANSI Z133 safety requirements which apply to arboricultural operations.
Relevant portion
The full ANSI Z133 safety requirements are available on our tree care standards page.