1.API 11E certification
2.simple structure, excellent performance
3.used widely in china,middle east
the wire line is composed of multilayer and no torsional wire rope.
there are rope sockets at its two ends whose top joins with the
rope supporter in the horse top and bottom joins with carrier bar.
the wire line is designed according to the API SPEC 11E.
2. carrier bar
carrier bar is an instrument which links polished rod and wire
carrier bar is hung on the polished rod line and the polished rod
slips is lied on the carrier bar.
3. Polished rod slip
polished rod slop is used to fix polished rod in the carrier bar.
this unit is equipped with two style polish rod slops which are 1"
and 1 1/8".
horse-head is welded with steel plate. wire line is hung in the
house-head rope support.
the house-head is connected to the walking beam by four pins. it
can turn to two sides.
5. walking beam
walking beam is made up of steel plate by welding. its shape is
H-shaped. it is according to the requirement of API 11E and has