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Top Anchor Systems
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Joffrey Hyman
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Aug 05, 2003 22:53 PDT
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Post from Derek Marshall
Please can I have some input on preferred top anchor systems. And
comments on below:
A. Systems which require threading
1. Hanger + single ring/link
2. Hanger + double ring/link
3. Hanger + multiple rings/link
4. Hanger + 'D' shackle
5. Threaded eye nuts
6. Double short chain directly bolted to face
7. 6mm thick hanger with rounded edges
8. Glued in 'P' bolts
B. Systems which require no untying to thread
1. Hanger + pig tail
2. Single pig tail direct to the face
4. Double pig tail direct to face
5. Chain direct to wall connected to Stainless crab on hanger
6. 6mm thick hanger with clipable hole for rope
7. Double cold shuts
8. Double short chain fixed direct to face, ending with steel screw
gate
C. Single bolt systems as apposed to the current SA fashion of 2 bolt
systems
D. So what are the most important components of a successful top anchor
system? Any comments please.
1. Price
2. Strength
3. Strength in time
4. Material
5. Not causing rope damage i.e.. twisting or abrasion
6. Number of bolts in system
7. Off setting / distributing force
8. Closeness of bolts
9. End user process education (education on how to safely thread)
10. Visability
11. Avalibility in SA
E. Other constructive coments, ideas and imput.
I am looking for imput from the actule bolters. If you haven't bolted 5
routes in the last 2 years please don't respond. No offence.
Please respond to mars-@reworkafrica.co.za
Thanks very much
Derek Marshall
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