This series of drilling tools are non-excavation and crossing drilling industry. Our company independently designs and produces pulley palm pieces, and can produce all kinds of pulley amplifiers suitable for non-excavation and crossing drilling machines and various strata.
According to the characteristics of the rig and different strata, choose the most appropriate tooth type and bearing structure.
Palm tip width and thick wear resistant alloy, palm back inlaid with wear resistant alloy to reduce wear.
Water force breaks rock.Slag discharge is smooth to reduce slag accumulation.
Welding process is guaranteed to prevent welding from overheating.
The bit body guide belt is designed with good guidance effect to make the hole amplifier smoothly contact the well wall.
Reasonable design of the drill body guide belt, good guidance effect, make the hole amplifier smoothly contact the well wall, effectively reduce the tendency of pipeline track change.
3、Recommended drilling parameters
Cone Rotary Speed
Soft with low compressive strength, such as shale, clay, sandstone, soft limestone, etc.
Formation with moderate hardness with high compressive strength, such as hard shale, limestone, sandstone, dolomite, etc.
Formation with high compressive strength, medium-hard and high abrasive properties, such as limestone, dolomite, sandstone, flint, etc.
Note: The upper limits of drilling weight and rotary speed recommended in above table could not be used at the same time.
OD of shaft
According to the customer’s requirements hole openers of different specifications can be produced.