QTZ125 Performance parameters Table Maximum rated torque( KN.m) 1250 Maximum lifting ( t) 10 Maximum working amplitude ( m) 2.5-65 Idependent Hoisting height( m) 50 Attached Hoisting height ( m) 181 Payload capacity at maximum amplitude( t) 1.2 Hoisting speed ( m/ min) a= 2 4/ 80 8/ 40 Hoisting speed ( m/ min) a= 4 8/ 40 4/ 20 Radius changing speed ( m/ min) 0= 55 Swiveling speed ( r/ min) 0= 0.8 Raising speed ( m/ min) 0.58 Dead load ( t) 60.8 Structure self-weight ( kw) 43.5 Balance weight ( t) 20 Standard knot dimensions ( m) 1.835× 1.835× 2.500 Materials of main limb of tower body 140× 12( Combining) Q235B