Rotacan is the only design and manufacturing company in Canada fully dedicated to Rotary Blast Hole Drill Bits, Drill Pipe, and other string components. “Innovation and Performance” are the foundation of their efforts to produce rugged, dependable, quality products, providing optimal drilling performance for our customers.
Rotacan Rotary Bits
Blast Hole Drill Bits for open-pit mining
Rotacan Advanced Performance (AP) rotary drill bits are manufactured using aircraft quality steel and premium carbide grades developed to suit the toughest application. Computerized designs using solid modeling, computerized manufacturing processes using the latest in CNC equipment and computer process controlled heat treatment ensure consistently high-quality drill bits.
9 inch (229 mm)
9 7/8 inch (250 mm)
10 5/8 inch (270 mm)
12 1/4 inch (311 mm)
13 3/4 inch (350 mm)
15 inch (381 mm)
16 inch (406 mm)
8,000/55 to 30,000/207
15,000/103 to 44,200/305
30,000/207 to 60,000/414
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MODEL SELECTION & OPERATING GUIDELINES
Advanced Performance – Rotacan AP drill bits are available in standard and customized models in four distinct series from AP4 through AP7 to provide rock drilling capabilities ranging from coal to iron. Performance data collected from each drill and ground condition is utilized to adjust and modify critical design parameters and achieve true advanced performance for our customers.
Rock Formation Examples: Designed for soft formations including shale, siltstone, soft limestone and alluvial formations.
Bit Weight: 1,000 to 5,000 lbs/inch of diameter
RPM: 50 to 140
IADC CODE: 4.1 – 4.4
Rock Formation Examples: Designed for medium to medium hard formations including sulfide and oxide copper ores, soft iron formations, medium-hard sandstone, dolomite and limestone.
UCS/PSI/MPA: 8,000/55 to 30,000/207
Bit Weight: 3,000 to 6,600 lbs/inch of diameter
RPM: 50 to 120
IADC CODE: 5.1 – 5.4
Rock Formation Examples: Designed for medium hard to hard abrasive formations; hard copper ores, hard sandstone, medium hard iron ore, schist, gneiss, metamorphic formations; granite and medium hard igneous rock.
UCS/PSI/MPA: 15,000/103 to 44,200/305
Bit Weight: 4,000 to 7,000 lbs/inch of diameter
RPM: 50 to 110
IADC CODE: 6.1 – 6.4
Rock Formation Examples: Designed for hard and very abrasive formations; hard copper ores, hard iron, quartz and the hardest igneous formations.
UCS/PSI/MPA: 30,000/207 to 60,000/414
Bit Weight: 5,000 to 8,000 lbs/inch of diameter
RPM: 50 to 80
IADC CODE: 7.1 – 7.4
1. Tungsten Carbide Inserts
2. Ball Bearing
3. Main Roller
4. End Roller
5. Ball Plug
6. Gage Protective Inserts
7. Shirt Tail Protection
8. Air Passage
9. Water Separator
10. Air Jet Nozzle
11. Back-flow Valve
12. Threaded Pin Connection
Rotacan Advanced Performance (AP) Rotary Drill Bits are tailor designed in close cooperation with our customers to suit their specific, often harsh drilling conditions using their drill rigs and compressors. Design parameters affecting bit life and penetration rates include the Cone Profile wherein the Diameter, Quantity, Geometry, Extension, Spacing, and Grade, of premium grade tungsten carbide inserts are utilized to break the rock. The variables noted are collectively referred to as the bit Cutting Structure. A tailor made cutting structure provides our customer with the best combination of bit life and rate of penetration to yield the lowest cost per meter. In very harsh or abrasive conditions additional protection is offered by applying hard facing alloy material to reinforce critical wear areas of the bit. The cone surface directly behind the gauge row will have one or two rows of carbide gauge inserts to prevent early erosion of the steel. To prevent dirt and water contamination of the bearings in wet drilling conditions an optional backflow Valve is installed. To ensure efficient removal of the rock cuttings nozzles are properly sized to direct adequate air to lift the cuttings out of the hole while supplying sufficient air through the bearings and cones to keep them cool and prevent debris from contaminating the critical bearing area.