Widely Used Numa100-240 for Stone Quarry DTH Bit

Product Details
Customization: Available
Type: Drill Bit
Material: Carbon Steel

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Type of Ownership
Limited Company
Terms of Payment
T/T, D/P, Western Union
  • Widely Used Numa100-240 for Stone Quarry DTH Bit
  • Widely Used Numa100-240 for Stone Quarry DTH Bit
  • Widely Used Numa100-240 for Stone Quarry DTH Bit
  • Widely Used Numa100-240 for Stone Quarry DTH Bit
  • Widely Used Numa100-240 for Stone Quarry DTH Bit
  • Widely Used Numa100-240 for Stone Quarry DTH Bit
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Basic Info.

Model NO.
NUMA100 NUMA120 NUMA125 NUMA240
Model Number
Numa100 Numa120 Numa125 Numa240
Tungsten Carbide
Yk05/T6
Carbide Shape
Dome, Ballistic
Face
Flat, Convex, Concave
Foot Valve
with Foot Valve and Without
High Pressure
1-2.5MPa
Transport Package
Wooden Package
Specification
CE, SGS, ISO: 9001
Trademark
PRODRILL
Origin
China
HS Code
82071990
Production Capacity
10000PCS/Month

Product Description


The characteristics of high air pressure DTH Button Bit:
Widely Used Numa100-240 for Stone Quarry DTH Bit
Widely Used Numa100-240 for Stone Quarry DTH Bit

1.Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2.Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3.Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of hammer.
4.Easy to depart bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.
5.Interchangeable with DTH bit and dill pipe manufactured by Atlas copco and Ingersoll-rand.
 
Bit face shape selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Carbide button shape selection:
1. Domed/Round Button
2. Parabolic/Semi-Ballistic Buttons
3. Ballistic Button
4. Sharp Button
5. Flat Button
  
Shank style Diameter in mm Flushing holes No. Gauge buttons Face buttons Approx.weight
 
 
NUMA120
305 4 12*18mm 36*16mm 152.0kg
311 4 12*18mm 36*16mm 158.0kg
330 4 16*18mm 42*16mm 165.0kg
356 4 16*19mm 48*16mm 178.0kg
381 4 16*19mm 48*18mm 195.0kg
 
Item Bit Dia
(mm)
No. Of 
Air Holes
Gauge 
Buttons
Front 
Buttons
Weight 
(Kg)
Numa100 254 3 12×Φ18 20×Φ16 90.0 
305 4 12×Φ18 36×Φ16 102.0 
311 4 12×Φ18 36×Φ16 104.0 
318 4 12×Φ18 38×Φ16 106.0 
330 4 16×Φ18 42×Φ16 112.0 

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