SD-13A caterpillar tractor hoist is of large torque reserves and high hoisting speed. It is mainly used in small repairing of oil water gas wells and well testing working, etc.

　

Chief performance indexes: 

Work-over depth, m	4000 ( oil pipe)
Max pull of roller (The first layer rope), kN	130
Max rotating speed of roller, r/min	267
Forward climbing capability, °	18
Backward climbing capability, °	30
Max running speed (forward), km/h	8.3
Max running speed (backward), km/h	9.5
Max drawing force, kN	46
Overall size (l×b×h), mm	5430×2680×3160
Machine weight, kg	20000