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SML Boron carbide (B4C) sandblasting nozzle is made from boron carbide by hot pressing with straight bore and venturi bore type. Because of its hardness, low density, high temperature resistance, excellent wear and anti-corrosion, Boron Carbide Nozzle has been widely used in sandblasting and shot peening equipments, offering a longest life with optimum air and abrasive use.

Approximate Nozzle Service Life in Hours : | |||
Nozzle Material | Steel Grit/Shot | Sand | Aluminum Oxide |
Alumina | 20-40 | 10-30 | 1-4 |
Tungsten Carbide | 500-800 | 300-400 | 20-40 |
Silicon Carbide | 600-1000 | 400-600 | 50-100 |
Boron Carbide | 1500-2500 | 750-1500 | 200-1000 |
Boron carbide nozzles(core) | ||
Outer diameter | Inner diameter | Length |
10mm | 3mm | 30mm |
15mm | 4mm | 35mm |
18mm | 5mm | 40mm |
20mm | 6mm | 45mm |
21mm | 8mm | 50mm |
25mm | 10mm | 60mm |
Or Based On Requirement | Or Based On Requirement | Or Based On Requirement |
Nozzles types:
1. Straight Hole Nozzles
2. Long Venturi Nozzles
3. Double Venturi Nozzles
4. Angular Nozzles
5. Banana Nozzles
6. Wet Spray Nozzles
7. Internal Pipe Blasting Nozzles
8. Customized Nozzles
1. Longer service life. In terms of service life, boron carbide nozzle has the longest one such as for sand blasting and shot peening.
2. Lower cost per use. Boron carbide costs more but will outlast tungsten carbide by 3 to 10 times.
3. To reduce down time.
4. To maintain efficiency.
SML Drilling, loacated in Wuhan, was established in 2008. We manufacture drilling tools and provide varieties of accessories.
With more than 13 years of experience in drilling industry, we have a complete line to take care of your drilling needs and have always prioritized our customers'goals. Through promoting reliable drilling solutions at affordable prices, our business has slowly been able to add new products while maintaining the focus on customer service.
We strive to exceed customers’ expectations in affordability, quality and on-time delivery.

SML research and produce the following range of drilling tools:
* PDC cutter/insert 0808, 1013, 1108, 1305, 1308, 1313, 1613, 1616, 1913, 1916...oil or mining type.
* PDC Bit for Oil Drilling, PDC Round Blade Bit, PDC Tip/Anchor Bit, PDC Matrix Body Bit, PDC Hole Opener, PDC Drag Bit, PDC Non bit, PDC Core Bit...
(Diameter 25mm, 27mm, 28mm, 29mm, 30mm, 32mm, 35mm, 42mm, 43mm, 46mm, 50mm, 55mm, 60mm, 65mm, 75mm, 89mm, 94mm, 98mm, 113mm, 124mm, 127mm, 132mm, 146mm, 153mm...190mm, 216mm…)
* Tricone Bit with Milled tooth or TCI, Single roller cone bit
*Diamond Core Drill bit: impregnated diamond core bit, brazed diamond core bit, glass core bit, sintered core bit...
* Tungsten carbide drill bit: two wings coal bit, carbide drag bit, chisel bit, cross bit, button bit,
DTH hammer bit...
* PCD Insert & Cutting tools / PCD Blank, CBN&PCBN Insert & Cutting tools
* Metal Materials:
Metal Welding Material: silver solder, surfacing material and tungsten electrode
Other Nonferrous Metals:
pure tungsten, tungsten alloy (tungsten carbide insert, TSS super tungsten shot, Tungsten nickel copper / W-Ni-Cu alloy, W-Ni-Fe, W-Cu Alloy/Tungsten Copper Alloy), Mo Alloy, Copper Alloy..
* Drill bit accessaries: diamond burr, tungsten carbide nozzle, graphite displacement, adapter, TSP...
* Drill rods – hex, twist, spiral…
* Samplers
* Other drill tools: tungsten powder, silver solder, boron carbide sandbladster...

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