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70x10mm Boron Carbide Sandblast Nozzle with 10-15x Longer Wear Life and Hot Pressed B4C Double Venturi Design
Product Details:
| Place of Origin: | Hunan, China |
| Brand Name: | High Broad |
| Certification: | ISO 9001:2015 |
| Model Number: | B4C-DV70-10 |
| Document: | Venturi nozzle Jane.pdf |
Payment & Shipping Terms:
| Minimum Order Quantity: | 10 Pieces |
|---|---|
| Price: | USD 18-45 / Piece |
| Packaging Details: | Precision foam cutout box, vacuum-sealed anti-moisture bag, reinforced export carton |
| Delivery Time: | 3-5 working days for stock, 15-30 days for production |
| Payment Terms: | T/T,L/C,PayPal,Western Union |
| Supply Ability: | 5000 Pieces per Month |
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Detail Information |
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| Density: | ≥ 2.50 G/cm³ | Wear Life: | 10-15x Longer |
|---|---|---|---|
| Length: | 70mm | Nozzle Type: | Double Venturi (Dual Stage) |
| Hardness: | ≥ 2900 HV (Mohs 9.3) | Orifice Diameter: | 10mm |
| Highlight: | Double Venturi B4C Nozzle 70mm,Boron Carbide vs Alumina Nozzle,Dual Stage Sandblasting Ceramic Tip |
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Product Description
The B4C-DV70-10 double venturi sandblast nozzle features a dual-stage venturi design that optimizes both particle acceleration and blast pattern uniformity. Manufactured from hot pressed boron carbide, this 70mm nozzle delivers superior performance in the most demanding abrasive blasting applications.
Alumina (aluminum oxide) nozzles are widely used in the sandblasting industry due to their low initial cost. However, in aggressive blasting applications using hard abrasives such as aluminum oxide or silicon carbide grit, alumina nozzles wear rapidly.
| Property | Boron Carbide (B4C) | Alumina (Al₂O₃) |
|---|---|---|
| Hardness (Mohs) | 9.3 | 9.0 |
| Wear Life (vs Alumina) | 10-15x longer | 1x baseline |
| Cost per Blasting Hour | $0.03-0.05 | $0.04-0.08 |
| Density (g/cm³) | 2.52 | 3.95 |
| Thermal Shock Resistance | Excellent | Moderate |
While alumina nozzles may cost 80% less to purchase, their rapid wear rate means operators replace them 10-15 times more frequently, resulting in higher total cost per blasting hour when factoring in downtime for nozzle changes.
The double venturi design provides two distinct advantages:
- Primary Venturi: Converges and accelerates abrasive particles to supersonic velocities
- Secondary Venturi: Re-expands the air-abrasive mixture, creating a broader, more uniform blast pattern
This results in 20-30% wider effective blast coverage compared to single venturi designs, with no loss of particle velocity at the pattern edges.
The B4C-DV70-10 excels in foundry cleaning (removing burned sand and ceramic shell from castings), heavy rust and mill scale removal from structural steel, and concrete surface preparation for coating applications.
Request wear-life comparison data and a tailored quotation for your specific abrasive and operating conditions.
