 |
| Place of Origin: | CHINA |
| Brand Name: | LF |
| Certification: | ISO9001 |
| Model Number: | WL-260327-30 |
| Minimum Order Quantity: | 1000pcs |
|---|---|
| Price: | USD2.59-3.59 |
| Packaging Details: | Carton box |
| Delivery Time: | 30 days |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | 1000 Ton/Tons per Month Walnut Shell Grinder |
| Material: | Walnut Shell | Packing: | 20kg/bag Or 25kgs/bag Or Customized |
|---|---|---|---|
| Color: | Brown | Fiber%: | 90.4% |
| Oil%: | 0.4% | Water%: | 8.7% |
| HARDNESS: | MOH 2.5-4 | PH AT 25°C IN NEUTRAL WATER: | 4-6 |
| FREE MOISTURE (80ºC FOR 15 HRS): | 3-9% | VOLUMETRIC WEIGHT: | 850kg/m3 |
| OIL REMOVAL RATE: | 65% | WARE RATE: | ≤1.5% |
| DILATABILITY: | 0.5% | SOLUBILITY: | Insoluble |
| PARTICLE SHAPE: | Irregular |
Product Description
Our Walnut Shell Abrasive (Walnut Shell Grit) is a naturally derived, biodegradable blasting medium made from carefully crushed and screened walnut shells. It offers an exceptional balance of hardness and softness—aggressive enough to remove coatings and contaminants, yet soft enough not to damage the underlying substrate. It is the preferred choice for surface preparation, cleaning, and polishing across automotive, aerospace, marine, and industrial applications.
Key Features & Benefits
Non-Abrasive to Substrates: Cleans effectively without etching, pitting, or dimensional change to delicate surfaces (aluminum, fiberglass, alloys, plastics, and soft metals).
High Durability & Low Dust: Dense particle structure provides multiple re-use cycles in blast cabinets, reducing media consumption and airborne dust.
100% Organic & Biodegradable: Contains no free silica, heavy metals, or chemical additives. Safe for operators and environmentally responsible disposal.
Excellent Deburring & Deflashing: Removes sharp edges and mold flash from plastic, rubber, and electronic components without surface stress.
Uniform Particle Distribution: Consistent sizing (available in standard grit ranges) ensures predictable surface profiles and reliable finishing results.
Common Applications
| Industry | Typical Use |
|---|---|
| Automotive & Aviation | Cleaning engine components, turbine blades, aluminum wheels, and carbon removal without affecting tolerances. |
| Marine & Yacht Maintenance | Stripping anti-fouling paint from fiberglass hulls without gel coat damage. |
| Electronics & Plastics | Deflashing circuit boards, connectors, and molded plastic parts. |
| Industrial Maintenance | Removing light rust, scale, and grease from molds, dies, and precision tools. |
| Stone & Monument Cleaning | Gentle removal of graffiti and soot from historic masonry and soft stone. |
Available Grades & Packaging
We offer a comprehensive range of grit sizes to match specific equipment and surface finish requirements:
Coarse Grit (e.g., 6/10, 8/12, 12/20): Fast stripping of heavy coatings and paint.
Medium Grit (e.g., 20/30, 20/40): General purpose cleaning and moderate deburring.
Fine/Polish Grit (e.g., 40/60, 60/100, 80/200): Light cleaning, final polish, and delicate deflashing.
Packaging: 50 lb (22.7 kg) heavy-duty poly bags, 2000 lb (907 kg) bulk super sacks, or custom packaging per customer request.
Technical Specifications (Typical Values)
Composition: 100% Crushed Walnut Shell
Hardness: 2.5 – 3.5 MOHS
Specific Gravity: 1.2 – 1.4 g/cc
Bulk Density: Approx. 45 – 55 lbs/ft³ (720 – 880 kg/m³)
Free Silica Content: < 1%
Why Choose Our Walnut Shell Abrasive?
Unlike synthetic plastic media that can melt or warp under heat, or mineral abrasives that can fracture substrates, walnut shell grit maintains its structural integrity and provides a cool, clean, and non-corrosive finish. It is the industry standard for "Clean and Inspect" operations.
For bulk pricing, samples, or a customized grit analysis, please contact our sales team.
|
Appearance |
Granular |
|
Color |
Brown |
|
Specific Gravity |
1.2-1.4 |
|
Solubility |
Insoluble |
|
Volumetric Weight |
850kg/m3 |
|
Proportion |
1.2-1.5g/cm3 |
|
Rind Puffing Rate |
3% |
|
Wear Rate |
≤1.5 % |
|
Oil Removal Efficiency |
90-95% |
|
Void Ratio |
47 |
|
Charring Temperature |
243°C (470°F) |
|
Bulk Density |
0.8g/cm3 |
|
Backwashing Strength |
25m3/m2.h |
|
Particle Shape |
Irregular |
|
Water Flushing Pressure |
0.32MPa |
|
Filtration Rate |
20-26m/h |
|
PH at 25°C in neutral water |
4-6 |
|
Oil Content |
0.25% |
|
Free moisture(80ºC for 15 HRS) |
3-9% |
|
Hardness |
MOH 2.5-4 |
|
Suspended Solids Removal Rate |
95-98% |
|
Dilatability |
0.5% |
Size Range:
| Model |
Size (mm)
|
Model |
Size (mm)
|
| 6# | 3.35-4.00 | 35# | 0.500-0.600 |
| 7# | 2.80-3.35 | 45# | 0.355-0.500 |
| 8# | 2.36-2.80 | 60# | 0.250-0.355 |
| 10# | 2.00-2.36 | 80# | 0.180-0.250 |
| 12# | 1.70-2.00 | 100# | 0.150-0.180 |
| 14# | 1.40-1.70 | 120# | 0.125-0.150 |
| 16# | 1.18-1.40 | 150# | 0.100-0.125 |
| 18# | 1.00-1.18 | 180# | 0.080-0.100 |
| 20# | 0.850-1.00 | 200# | 0.075-0.080 |
| 25# | 0.710-0.850 | 240# | 0.063-0.075 |
| 30# | 0.600-0.710 | 280# | 0.050-0.06 |
Walnut shell is a granular material and polishing abrasive that has been processed through crushing, screening, and other processes, with multiple micropores on the surface and good adsorption effect.
Walnut shell filter material has high hardness, wear resistance, good compression resistance, and a pressure resistance of 23.4KgF. It has stable chemical properties, does not dissolve in acids and alkalis, strong adsorption and interception ability, and an adsorption rate of 27-50%. It has good hydrophilicity and resistance to oil immersion, with a specific gravity of g/cm31.25, slightly higher than water. The filling specific gravity is 0.85g/cm3, which is easy to backwash and regenerate. Compared with other filter materials, its advantages are that it directly uses backwashing before filtering, has low operating costs, and low backwashing strength, (6.71/S. m2), fast filtration rate (24-26/n), good effect. The treatment effect of oily water in oil fields is significant, with oil removal reaching 95% and oil content dropping below 5mg/l.
Walnut shell abrasive is a natural polishing material that does not damage the surface of the workpiece and has a good polishing effect. It has excellent wear resistance, uniform particle size, and high shell content. The walnut shell polishing material is mainly used for polishing and deburring in industries such as eyewear accessories, pearl jewelry, buttons, electronic components, stamping parts, etc. Walnut shell particles with strong compressive strength and particle size ranging from 1.25 to 1.60mm have an average compressive limit of 0.2295KN (23.40kgf). Walnut shell particles with a particle size of 0.80-1.00mm have an average compressive limit of 0.165KN (16.84kgf).
Walnut Shell & Corncob are soft blasting media processed from natural hard-fibers of walnut or corn. The major advantage is that fragile components can be cleaned without marking or etching the components’ blasted surfaces. They are suitable for cleaning auto Mobile super chargers and turbine blades, removing unwanted flash residue produced during the molding process from semi-conductor integrated circuit package lead frames without damaging or pitting the package surface. They are also used in power generation stations, turbine overhaul factories and the aerospace industry. Besides these, walnut Shell is widely used for cleaning moulds, motor armatures and motor drives prior to rewinding. Corncob is very light, soft and absorbent. It can be used for cleaning delicate surfaces or brass/brick/stone/wood, engines and engine components as well as mass finishing processes for drying and absorbing water, oil or wax from processed parts and also for fine polishing or brightening of parts.
Walnut shells are commonly used as an abrasive blasting media in industrial applications for surface preparation, cleaning, and polishing.
Product Usage:
1. Oilfield oily wastewater treatment: degreasing and suspended solids.
2. Industrial oily industrial water treatment: degreasing and suspended solids.
3. Civil and industrial water treatment: Remove suspended solids in water and improve water quality.
4. Car seat cushion filling.
5. Abrasive polishing (pearl jewelry, glasses accessories, buttons, electronic parts, stamping parts, hardware tools)
6. Fruit shell powder (soap solution, hand sanitizer) filling, etc.
Details Pictures:
Our Factory picture
FAQ Pet litters natural walnut shell grit litterPet litters natural walnut shell grit litter Pet litters natural walnut shell grit litter
1. Q: How to place an order?
A: Send the inquiry --- Get the quotation --- Approve the order --- Make the PI --- Payment --- Arrange production & inform --- Rest and relax --- Finished products inspection --- Make the balance --- Arrange delivery --- Goods received.
2. Q: What kind of payment do you accept?
A: Formal order we usually choose TT or L/C, Western Union for small amount payment.
3. Q: Do you offer OEM service?
A: Yes, Oem is ok, our factory can offer produdcts that according to our clients' requirments.
4. Q: How long is the delivery?
A: Usually 3-5 days for small order, 10-20 days for bulk order after payment received.
