Mf Rod

The coupling is included as an integral part of the MF Rod. So the one head is male thread the other one is female thread. The Male/Female rod provides more rigid connections and is easier to uncouple and handle. It is also decrease the energy loss between the connectors and increase the penetration rates.mainly used in the big/middle diameter and middle deep rock drill.
The MF Rod length is less than 1.8m that used in underground miningchange the rod manually;when it is used in open miningthe length is between 2.4-3.6mchang the rod by mechanical automation mostly.
Notes:
1.We can provide according to customer requirements
2.Thread parameters: N 22mma N 38mm Rope Thread metric thread pitch 12mminch thread pitch 12.7mm; N 38mma N 51mm a Ta threadN 38mm pitch is 15.63mmN 45mm pitch is 17.47mm N 51mm pitch is 20.32mm.we can also provide gradual thread SR32SR35 etc.
3. We provide overall carburizing and two end head heat treatment (carburizing is
the whole heat treatment recommend: N 38 mm above extension drill rod high quality
rig rod and MF rod.