Judge Rosalind Coe told Hinds he had used "heartless, unkind and unacceptable violence".
You used violence, rough treatment, intimidation to frighten and control service users so they were less likely to display challenging behaviour in your presence.
Your bullying and intimidation to other staff members enabled you to carry on over a long period of time.
She said the victims in the case were severely disabled and in no position to defend themselves.
"It is hard to imagine more vulnerable people," Judge Coe said. "They were all dependent on you."
The judge said she read many impact statement from relatives of the victims. She said each spoke of devastation and breach of trust.
More top news
A man who helped officers apprehend a suspected drug dealer by sticking out his foot and tripping him has been hailed a "legend" by police.
Sarah Bartlett was surprised when she received an anonymous card containing £100 as a reward for doing an "amazing job" as a mum
A cat who prowls a station on the hunt for mice has been promoted to become the official pest control manager.