Walnut Shell for Blasting in Various Industries:
According to the Mohs scale, its hardness of 3.5-4.00 makes walnut shells an effective natural abrasive in sandblasting, polishing, and cleaning of hard materials such as metal, carbon fiber, concrete, or hard plastic. This helps preserve and maintain industrial, medical and automotive equipment. Common examples of use can be found in aviation, where walnut shell granules are used to clean out engines and turbines in an air jet blasting process. Besides, the biodegradable grit reliably removes corrosion or any chemical coating from boats, planes, and buildings without the need for additives.
Walnut Shell for Blasting Applications Include:
- Stripping and cleaning of castings and moldings
- Deburring plastics and die castings
- Cleaning of metallic surfaces on automobiles, boats, bridges, and buildings
- Cleanout of aircraft engines and steam turbines
- Enhancing the porosity of grinding wheel and ceramics in burn-out applications
- Deflashing electronic components
Proximate Analysis of Walnut Shell for Blasting
| Cellulose | 40 – 60% |
| Lignin | 20 – 30% |
| Methoxyl | 6.50% |
| Nitrogen | 0.10% |
| Chlorine | 0.10% |
| Cutin | 1.00% |
| Toluene Solubility | 0.5 – 1.0 % |
| Ash | 1.50% |
Typical Properties of Walnut Shell for Blasting
| Specific Gravity | 1.2 to 1.4 |
| Bulk Density (lbs per ft3) | 40 – 50 |
| Mohs Scale | 4.5 – 5 |
| Free Moisture (80ºC for 15 hrs) | 3 – 9% |
| pH (in water) | 4 – 6 |
| Flash Point (closed cup) | 380º |
Granularity Grade of Walnut Shell for Blasting
| Grade | Mesh Size | Particle Size |
| Extra Coarse | 4/6 Mesh | 4.75 – 3.35 mm |
| Coarse | 6/10 Mesh | 3.35 – 2.00 mm |
| Coarse | 8/12 Mesh | 2.36 – 1.70 mm |
| Medium | 12/20 Mesh | 1.70 – 0.85 mm |
| Medium | 14/30 Mesh | 1.40 – 0.56 mm |
| Fine | 18/40 Mesh | 1.00 – 0.42 mm |
| Fine | 20/30 Mesh | 0.85 – 0.56 mm |
| Fine | 20/40 Mesh | 0.85 – 0.42 mm |
| Extra Fine | 35/60 Mesh | 0.50 – 0.25 mm |
| Extra Fine | 40/60 Mesh | 0.42 – 0.25 mm |
| Flour Grade | 40/100 Mesh | 425 – 150 micron |
| Flour Grade | 60/100 Mesh | 250 – 150 micron |
| Flour Grade | 60/200 Mesh | 250 – 75 micron |
| Flour Grade | -100 Mesh | 150 micron and finer |
| Flour Grade | -200 Mesh | 75 micron and finer |
| Flour Grade | -325 Mesh | 35 micron and finer |
Dylan (verified owner) –
Very fast delivery.