R28 Threaded Coal Mining Cross Bits

Shop high-quality R28 Threaded Coal Mining Cross Bits directly from the factory. We offer durable and efficient mining tools for coal excavation.

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  • R28 Threaded Coal Mining Cross Bits
  • R28 Threaded Coal Mining Cross Bits
  • R28 Threaded Coal Mining Cross Bits

PRODUCTS DETAILS

Brand Name JCDRILL Advantage Direct Manufacturer
Type Tungstern Carbide Threaded Drill Bits Application Mine,Ore,Railway,Tunnel,Water Irrigation etc.
Machine Type Drilling Tool Feature Fast Penetration Rate With Good Wearing Resistance
Material Tungsten Carbide and High Quality Alloy Steel Threaded R25 R28 R32 R38 T38 T45 T51 etc
Processing Type Casting Suitable Brand Atlas copco,Boart longyear,Halco,Fantini,Furukawa...
Use Rock Drilling, Underground Mining, Quarry, Blasting, etc Name Tungstern Carbide Threaded Button Rock Drill Bits
R28
Drill Bit Bit Dia. NO x Button x Dia. Flushing Hole Weight
mm inch Front Gauge Angle Front Side (KG)
 BUTTON BIT Spherical Buttons
37 1 29/64 2x7 5x9 30° 1 1 0.5
38 1 1/2 2x8 4x9 30° 1 2 0.6
38 1 1/2 2x7 5x9 30° 1 1 0.6
41 1 5/8 2x8 5x9 35° 1 1 0.7
43 1 2/3 2x9 5x9 30° 1 2 0.8
45 1 3/4 2x9 5x10 30° 1 2 0.9
45 1 3/4 3x8 6x9 30° 1 3 0.9
Parabolic Buttons
37 1 4/9 2x7 5x9 30° 1 1 0.5
38 1 1/2 2x8 4x9 30° 1 2 0.6
38 1 1/2 2x7 5x9 30° 1 1 0.6
41 1 5/8 2x8 5x9 35° 1 1 0.7
43 1 2/3 2x9 5x9 35° 1 2 0.8
45 1 3/4 2x9 5x10 30° 1 2 0.9
45 1 3/4 3x8 6x9 35° 1 3 0.9
48 1 7/8 2x9 5x11 30° 1 2 1.0
48 1 7/8 3x8 6x9 35° 1 3 1.0
 CROSS BIT 38 1 1/2 14x8 1 2 0.6
41 1 5/8 14x8 1 4 0.7
43 1 2/3 14x8 1 4 0.7
45 1 3/4 14x8 1 4 0.9
51 2 14x8 1 4 1.1
Drill Roll Bit Dia. Dimaeter Weight
mm inch mm inch (KG)
 ROLL 2400 7'10" 28 1 1/8 12.2
2750 9' 28 1 1/8 14.4
3700 12'11/2" 28 1 1/8 18.9
4000 13'1/8" 28 1 1/8 20.4
4310 14'11/2" 28 1 1/8 22.0
4920 16'11/2" 28 1 1/8 25.3
2900 9'61/8" 32 1 1/4 18.8
3090 10'11/2" 32 1 1/4 20.0
3700 12'11/2" 32 1 1/4 24.0
4310 14'11/2" 32 1 1/4 27.9
3090 10'11/2" 32 1 1/4 20.0
3700 12'11/2" 32 1 1/4 23.5
3090 10'11/2" 32 1 1/4 20.0
3700 12'11/2" 32 1 1/4 24.0
4000 13'13/8" 32 1 1/4 25.9
4310 14'11/2" 32 1 1/4 27.9
3050 10' 28 1 1/8 15.0
3050 10' 28 1 1/8 15.0
Coupling Bit Dia. Dimaeter Weight
mm inch mm inch (KG)
 COIPLING 150 5 7/8 44 1 3/4 1.0
150 5 7/8 40 1 37/64 0.9
170 6 3/4 55 2 5/32 2.0
160 6 5/16 45 1 3/4 1.2
160 6 5/16 56 1 13/64 2.5
Minimum Order Quantity N/A
Price
Packaging Details Standard Export Delivery Package
Delivery Time 7days
Payment Terms T/T
Supply Ability Based on Detailed Order
Product Description Our cross bits diameters are from 38mm to127mm, and different type are available, like R22, R25, R28,R32, R38, T38, T45, T51, ST58, ST68, etc. Feature: 1. Excellent drilling penetration 2. Used in very hard or hardest rock formation 3. Adequate for various construction conditions 4. Strong corrosion resistance Application: 1. The cross bit is suitable for digging of very hard rock formation, hard formation and crack-grown formation. 2. All cross bits have to be reground at regular intervals to crush rock efficiently. 3. We choose different material and size for the cross bits in order to adapt the different rock formations and Our products are widely used in the scope of mining, water well drilling and exploration, anchor grouting project, side slope protection engineering, oil and gas engineering,underwater rock drilling & blasting operations of seaport channel, hydropower project, national defense projects ect.cross bit cross bit

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