The lm 75 is a mid sized drill rig for underground diamond coring with a 75 kw electric motor.
Boart longyear drill rod specifications.
Lf 230 core drill technical data sheet boart longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice.
Lf 230 surface coring drill rig.
To new unused boart longyear rods used in a straight vertical hole assuming compliance to wireline drill rod care and handling manual and standard core drilling practices.
Rod weight per unit length 37 30 kg 3 m 82 16 lb 10 ft rod content weight water per unit length 8 80 l m 0 70 gal ft.
English pdf diamond products catalog.
They only have pin thread case hardening for wear.
Lm 75 underground coring drill rig.
Canadian longyear starts producing rod and casing in north bay 1958.
Rod midbody outer diameter 114 00 mm 4 50 in rod midbody inner diameter 106 00 mm 4 19 in rod joint inner diameter 102 0 mm 4 0 in rod stiffness moment of inertia 53 739 mm483 3 in4.
Dcdma standardizes w world drill rod with coarser 3 tpi threads and larger od 1966.
A 40 000 lb hoist allows for rig depth capacity beyond its class.
30 provides a third of the strength.
Q drill rod launched with tapered acme thread.
English pdf in hole tools catalog.
Boart longyear coring rods are case hardened on the pin thread to maximum hardness 60 hrc creating a significant hardness difference between pin and box.
Click on the links below to view catalogs and information for boart longyear s complete drilling services tooling and drill rig product line.
This is a measure of how much load a joint can carry as compared to the midbody e g.
20 ft container load of 3 0 m 10 ft rods holds 20 bundles 380 rods 40 ft container load of 3 0 m 10 ft rods holds 30 bundles 570 rods do not use rods shorter than 1 5m at top of hole as a drive sub or kelly rod because they do not have q t heat treatment.
This difference minimizes wear compared to the rapid galling that other threads experience.
The lf 230 deep hole drill provides the features and the power required to get just about any job done easily and efficiently.
Designed to be modular with a number of options the lm75 is easily tailored to specific needs and can be upgraded when requirements change.
Boart introduces first q wireline system 1965.
All standard rotary overburden casing is manufactured by boart longyear with a double start cylindrical thread.
