We can manufacture both deep hole bored/drilled hollow bars that are made from steel billets as well as cold drawn hollow bars that are made from hot rolled seamless pipes with heacy wall.We can also do machining&turning to the hollow bars as per customer’s request and drawing.

Available steel grade of hollow bars:

Size Range:

OD: ≤ 500mm

ID: ≥ 8mm  

Length：≤3000mm

Manufacture Method: Hydraulic Cold Drawing, Deep Hole Drilling,Deep Hole Boring

Heat Treating Method/Delivery Condition:

OD and ID tolerance: as per request