What Can Walnut Shells Do for You?
Sustainable
Affordable
Renewable
For A Variety of Uses and Applications
In addition to our core industries, we supply walnut shell media for a wide range of applications, such as Polishing/Deburring, Anti-Slip/Skid, Scale Modeling, Carrier, Infill Material, and Toy Fillers, among others. Working on environmental or product improvements? We’re always looking for new ways to use walnut shells. If you have an idea, we’re open to all industries and applications.
Custom Grades
We custom-produce and tailor sizing for any and all applications and needs
Research & Development
We will work with you to supply sample product for research and development
Consistent Supply
Our in-house stock guarantees a steady, high-quality supply without interruption
Get a Free Sample Kit
For a free sample kit of our in-stock walnut shell, just submit your info below.
Get My KitHow Walnut Shells Improve Your Formulation
Readily Available
Annually renewable, your walnut shell applications are protected from supply chain bottlenecks
Durable and Highly Efficient
Walnut shells have extended durability and can remove oils and solids with up to 99% efficiency
Cost-Saving Material
The stable chemical properties of walnut shells make them one of the most efficient cost-saving media in use
Eco-Shell FAQs
Learn the answers to some of the most common questions we receive about using walnut shells for a variety of industries.
We grow and process English walnut shells at our local California farms.
Yes, we have years of experience shipping globally. Contact us for more information.
All our shells come from local California farms and are grown to meet the highest standard in the country.
Have a Project Walnut Shells May Be a Fit For?
Full Spectrum of In-Stock Sizes
Our sizes are based on U.S sieve standards. Millimeter and inch measurements are approximate. Custom sizes are available upon request.
4/6
3.35 mm 0 4.75 mm0.1320 in – 0.1870 in
6/10
2.00 mm – 3.35 mm0.0787 in – 0.1320 in
6/20
0.85 mm – 3.35 mm0.0331 in – 0.1320 in
8/12
1.70 mm – 2.36 mm0.0661 in – 0.0937 in
12/20
0.85 mm – 1.70 mm0.0331 in – 0.0661 in
14/30
1.40 mm – 0.66 mm0.0234 in – 0.0555 in
18/40
0.425 mm – 1.00 mm0.0165 in – 0.0394 in
20/40
0.425 mm – 0.85 mm0.0165 in – 0.0331 in
35/60
0.25 mm – 0.50 mm0.0098 in – 0.0197 in
35/60
.500 mm – .250 mm.0197 in – .0098 in
40/60
0.25 mm – 0.425 mm0.0098 in – 0.0165 in
40/60
.425 mm – .250 mm.0165 in – .0098 in
40/100
0.15 mm – 0.425 mm0.0059 in – 0.0165 in
40/100
.425 mm – .150 mm.0165 in – .0059 in
60/100
0.150 mm – 0.25 mm0.0059 in – 0.0098 in
60/100
.250 mm – .150 mm.0098 in – .0059 in
60/200
.250 mm – .075 mm.0098 in – .0029 in
60/200 10.5
.300 mm – .075 mm.0117 in – .0029 in
70/200
.212 mm – .075 mm.0083 in – .0029 in
-100
95% passing 100.150 mm, .0059 in