What is the Crush Grip of An Orangutan or Chimpanzee?

Humans can go to like 400 lbs of pressure with their hands i think.. Orangutans and chimps can go a lot farther ive heard.. How come there grip is a lot stronger than ours?|||Yes, wild animals are usually about 7x stronger than a human per pound of body weight. They've retained this level of strength because it's been essential for their survival. As humans have turned to a couch potato lifestyle, we've lost muscle strength because it hasn't been needed for survival.|||They are bag of muscles. There's a woman, who appeared in oprah, whose face got torn off by a chimp.