Pony rods are used to adjust the length of sucker rod string in oil well. manufacturing specification is API 11B, the specification include 5/8”, 3/4”, 7/8”, 1”, 1-1/8”, the length has 2ft, 4ft, 6ft, 8ft, 10ft, 12ft, our company’s pony rod is Grade D. the material is AISI 4130.
1. Introduction of Pony rodThe Pony rods are used to adjust the length of sucker rod string in oil well.2. Manufacturing specification: API 11B3. Specification