Scaling Bar for an Excavator
From time to time, the usual attachments and ideas don't work anymore. Scaling loose rock at the max reach and height of an excavator boom/stick is dangerous and nerve racking work. The possibility of doing damage to the machine, and having a chunk of rock come through you window are fairly high. Here are a few pics of a successful design of a scaling bar attachment that was built for 345/450 sized machines. The thick wall round tube design is much stronger and rigid than any size of I-beam or H-beam designs. I have used I/H-beam scaling bars...and the first thing they do is flex like a wet spaghetti noodle. We had a 12 inch I-beam bar on a 200 Hitachi, and it bent easily with very little torque applied. The round model in the photos has a replaceable tube that is held in by a pin. Here's a few things that I have learned about excavator scaling bars. 1. It's dangerous work. b. Put your best guy on the job c. Put you ugliest machine under him ( you will hit the ...