HENGTONG PETROLIC MACHINERY manufactures high-precision cold-drawn steel tubes, which are mainly used for producing of hydraulic/ pneumatic cylinders, pumps, motor shells, transmission shafts, ASTM A519 4140 tubing and transmission roller steel pipes more than 20 Years.
2. Product Details
Application: Used for drilling, downhole motor, mud motor
Size : ID from 70mm to 300mm
Length : Depends on customer requirement.
Material : 4140 / 42CrMo
Delivery Condition: hot rolled + boring and milling
ID and OD Tolerance : Depends on customer requirement.
Brand : Hengtong
We are well-equipped with 300 ton, 150 ton, 65 ton, 20 ton of cold drawing machine,9 meters CNC boring machines, 20 sets honing machines , one set furnace and advanced quality testing equipment, which combine cold drawn, cold-rolled, heat treatment and traditional machining process.