▁of ▁degrees ▁of ▁freedom . ▁ ▁In ▁industrial ▁erg onom ics ▁a ▁manip ulator ▁is ▁a ▁lift - ass ist ▁device ▁used ▁to ▁help ▁workers ▁lift , ▁man eu ver ▁and ▁place ▁articles ▁in ▁process ▁that ▁are ▁too ▁heavy , ▁too ▁hot , ▁too ▁large ▁or ▁otherwise ▁too ▁difficult ▁for ▁a ▁single ▁worker ▁to ▁manually ▁handle . ▁ ▁As ▁opposed ▁to ▁simply ▁vertical ▁lift ▁ass ists ▁( c ran es , ▁ho ists , ▁etc .) ▁manip ul ators ▁have ▁the ▁ability ▁to ▁reach ▁in ▁to ▁tight ▁spaces ▁and ▁remove ▁work pie ces . ▁ ▁A ▁good ▁example ▁would ▁be ▁removing ▁large ▁stamp ed ▁parts ▁from ▁a ▁press ▁and ▁placing ▁them ▁in ▁a ▁ra ck ▁or ▁similar ▁d unn age . ▁In ▁w eld ing , ▁a ▁column ▁bo om ▁manip ulator ▁is ▁used ▁to ▁increase ▁de position ▁rates , ▁reduce ▁human ▁error ▁and ▁other ▁costs ▁in ▁a ▁manufact uring ▁setting . ▁ ▁Additionally , ▁manip ulator ▁tool ing ▁gives ▁the ▁lift ▁assist ▁the ▁ability ▁to ▁pitch , ▁roll , ▁or ▁spin ▁the ▁part ▁for ▁appropriate ▁pla cement . ▁ ▁An ▁example ▁would ▁be ▁removing ▁a ▁part ▁from ▁a ▁press ▁in ▁the ▁horizontal ▁and ▁then ▁pitch ing ▁it ▁up ▁for ▁vertical ▁pla cement ▁in ▁a ▁ra ck ▁or ▁rolling ▁a ▁part ▁over ▁for ▁expos ing ▁the ▁back ▁of ▁the ▁part . ▁ ▁Special ized ▁types ▁One ▁of ▁the ▁types ▁of ▁manip ul ators ▁is ▁bal anced ▁manip ulator ▁type ▁M SP - 2 5 0 , ▁controlled ▁by ▁the ▁operator ' s ▁hand