Whether you’re considering working with General Chipping for the first time, or are a returning customer looking to learn more about us, we believe arming yourself with information is a good thing. Below, you’ll find answers to some of our most common questions, from scheduling, to equipment and our concrete chipping practices.
- Handheld Chipping Hammers (also known as jackhammers)
- Impact Rails
- Silo Tripods
- Hard Hats
- Eye Protection
- Steel Toe Boots
- Hearing Protection
A: Each situation and vehicle is different, but at General Chipping we consider a full load to be any truck with more than five (5) yards of buildup along drum walls. Five yards is about half of most drums’ capacity. Keep in mind that all drums have an internal volume capacity higher than their rated size, and there is always the chance for a drum with capacity for 10 yards to hold up to 14 yards of hardened concrete. Do not be surprised if you go over five yards of chipped-out concrete, even if you can fit nine yards in your drum.
Take McNeilus’ Standard Drum, for example. The rated drum size of their 10-yarder is 7.65 cubic meters (10 yards), but the volume capacity is 12.74 cubic meters (16.6 yards). In other words, if we placed the drum vertically, it could hold 12.74 cubic meters of volume. When tilted at a 12.7-degree angle, however, the carrying capacity reduces to 7.65 cubic meters, and any excess spills out. Notice, though, that when concrete hardens, it attaches to the drum’s walls. Thus, any buildup exceeding the 7.65 cubic meters will not spill out. Rather, it will remain attached to the fins and walls, with no effect on the carrying capacity.
This is an issue many producers ignore. They tend to believe that, if you can haul 10 yards, you have a clean drum. But time after time, that has proven incorrect. Still don’t believe us? Take a look at the following specs, which come directly from truck manufacturers: