Warehouse robots that help with the packing and stacking of sugar bags, it's a lot faster than "arms".
At first glance, these bags of sugar must weigh about 50 kg each.
You can imagine the effort spent by workers on carrying out a similar type of loading.
Featured in this video, industrial robots by Kawasaki Robotics.
The level of speed is hard to compete with.
http://www.youtube.com/watch?v=7hoLVggfSeM