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| Place of Origin: | CHINA |
| Brand Name: | LF |
| Certification: | ISO9001 |
| Model Number: | WL-260327-43 |
| 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 |
Walnut Shell Grinder are excellent soft grit abrasives used in blast cleaning and tumbling. Walnut shell grit is used in applications that require aggressive stripping or cleaning without damage or effect on the underlying subtrate. Organic and biodegradable, walnut shell is extremely durable, angular in shape but considered a soft abrasive.Also used in the oil industry as lost circulation material and as a filter media for cleaning produced water. Available in extra course to extra fine.
|
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 |
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.
Details Pictures:
Our Factory picture
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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.
