ODM OEM Garnet Sand for Waterjet Cutting & Abrasive Sandblasting Grade

Product Description

Product Description

ODM OEM Garnet Sand for Waterjet Cutting & Abrasive Sandblasting Grade

Junda Garnet Sand is a premium natural abrasive mineral sourced from controlled-grade deposits and processed through a fully integrated mining-to-packaging production chain in Shandong Province, China. Formed through natural metamorphic processes over millions of years, almandite garnet possesses a sub-conchoidal fracture pattern that generates fresh, razor-sharp cutting edges upon impact - making it the preferred abrasive for industries where precision, safety, and cost-per-unit-treated matter most.

With a Mohs hardness of 7.5-8 and a specific gravity of 4.1 g/cm³, Junda Garnet Sand delivers aggressive, consistent abrasive action whether propelled through a high-pressure waterjet nozzle at 80,000 PSI or projected by a blast pot onto a steel ship hull. Unlike silica sand, it contains zero free silica - eliminating the occupational risk of silicosis and complying with worker health regulations in the EU, USA, Australia, and most export markets.

The product line covers four standard mesh grades (20/40, 30/60, 80#, 120#) plus the A-grade water filtration variants (20/40A, 30/60A), all produced under ISO 9001:2015 quality management with full lot traceability. Monthly production capacity stands at 3,000 metric tons, supported by lean logistics to Qingdao Port with a consistent 10-15 working day lead time.

Exported to 90+ countries since 2005, Junda Garnet Sand is trusted by shipbuilders, pipeline contractors, waterjet fabricators, and water treatment authorities on six continents. OEM/ODM services - including custom mesh blends, private-label packaging, and formulation adjustment - are available from 1 metric ton.

Parameter	Value / Specification
Material / Source	Natural Almandite Garnet
Available Mesh Sizes	20/40, 30/60, 80#, 120# (custom mesh on request)
Specific Gravity	4.1 g/cm³
Bulk Density	2.4 g/cm³
Hardness (Mohs)	7.5 - 8
Free Silica	None (Silica-Free)
Fe^2O^3Content	27.95 - 29.50%
Al^2O^3Content	16.72 - 18.06%
Chloride Content	< 25 ppm
Conductivity	< 25 μS/cm
Free Flow	≥ 90%
Moisture	None Hygroscopic, Inert
Fracture Type	Sub-Conchoidal
pH	6.93 (neutral)
Certification	ISO 9001, SGS, BV Audited
Production Capacity	3,000 Tons / Month
Packaging	25 kg/bag × 40 bags/ton bag
Trademark	Junda
Origin	China (Shandong Province)
HS Code	2513.20

 
 

From Natural Mineral to More Efficient Abrasive Use

Our garnet abrasive is not simply a natural mineral product. Through controlled processing, particle classification and quality inspection, we aim to improve the usable life and application efficiency of each abrasive particle.

Grade	Particle Size (µm)	Primary Application	Typical Use Case	Key Benefit
20/40	425 - 850	Heavy Blasting	Ship hulls, bridge structures, offshore platforms	Fast rust removal, deep anchor profile (Rz 60-100 µm)
20/40A	425 - 850	Water Filtration	Multimedia filter beds, drinking water treatment	AWWA B100 compliant, inert, pH-neutral
30/60	250 - 600	General Blasting	Pipelines, storage tanks, containers, steel structures	Best balance of speed and anchor profile (Rz 40-70 µm)
30/60A	250 - 600	Water Filtration	Industrial wastewater, multimedia filter systems	High density, backwash-stable filtration layer
80#	180 - 250	Waterjet / Blasting	Steel, stone, glass, composites - standard waterjet; automotive blasting	Industry-standard grade, speed & precision balance
120#	125 - 180	Precision Waterjet	Thin materials, glass, electronics, delicate tiles	Fine edge, no chipping, smooth finish
30/60	250 - 600	Stone Cutting	Granite slabs, marble processing	Aggressive cut, minimal waste
80# or 120#	125 - 250	Floor & Cleaning	Anti-skid surface treatment, paint stripping	Controlled profile, low dust

Recommended Garnet Sand Size Guide

Mesh Size	Particle Size (μm)	Cutting Style	Application	Performance Characteristics
60 Mesh	250 - 425	Fast cut	Thick stone, heavy metal - where speed > finish	Highest speed, higher abrasive consumption
80 Mesh	180-250	Standard cut	Steel, stone, glass, composites, ceramic tile	Best speed-precision balance - industry default
120 Mesh	125- 180	Precision cut	Thin sheet, delicate glass, electronics, fine ceramics	Smooth edge, no chipping, lower kerf width
180 Mesh	90-125	Fine cut	Precision parts, decorative stone, thin composites	Better edge quality, smoother finish
220 Mesh	63-90	High precision	Aerospace components, medical devices, optical parts	High precision, lower taper angle
320 Mesh	45-63	Ultra precision	Micro cutting, ultra-thin materials, minimal kerf required	Excellent surface finish, minimal kerf

Garnet Sand - Surface Treatment Selection Guide

Mesh Size

Particle Size
(µm)

Cleanliness Grade
(ISO 8501-1)

Anchor Profile
Rz (µm)

Typical Industry / Application

Suitable Substrates

Subsequent Coating

20/40

425-850

Sa 2.5 / Sa 3

60-100

Ship hulls, bridge steel structures, offshore platforms

Thick steel plates, castings

Heavy-duty anti-corrosion coatings, heat-resistant aluminum coatings

30/60

250-600

Sa 2.5 / Sa 3

40-70

Pipeline corrosion protection, storage tanks, containers, steel structures

Medium-thick steel plates, pipelines

Epoxy primers, polyurethane coatings

80#

180-250

Sa 2 / Sa 2.5

20-40

Automotive parts, precision machinery housings, aluminum components

Thin steel plates, aluminum alloys, stainless steel

Powder coatings, electrophoretic coatings, thin-film coatings

120#

125-180

Sa 1 / Sa 2

10-20

Medical devices, electronic housings, decorative matte finishing

Stainless steel, titanium alloys, precision components

Electroplating, anodizing, anti-corrosion primers

Quick Selection: Heavy rust removal / deep anchor profile → 20/40 or 30/60  |  General blasting / pre-coat treatment → 30/60 or 80#  |  Precision / decorative finish → 80# or 120#
Safety Advantage: Zero free silica · Low dust · Compliant with EU COSSH, US OSHA & AU Safe Work regulations · Recyclable 3-5 times · Lower lifecycle cost vs. silica sand.

 

Junda Garnet Sand is produced through multi-stage magnetic separation and hydraulic classification to ensure consistent Almandite purity. Controlled crushing angles produce stable sub-conchoidal fracture profiles - each impact generates fresh cutting edges, extending particle life to 3-5 reuse cycles and reducing solid waste by 65-80%. Six application-specific grades (20/40, 30/60, 80#, 120#, and water filtration grades 20/40A, 30/60A) are engineered for distinct end-uses; A-grade water filtration variants meet AWWA B100 standards, extending the same mineral across both abrasive and water treatment applications.

Q1. Which mesh size should I choose for waterjet cutting?

80 Mesh is the industry standard, offering the best balance of cutting speed and precision for steel, stone, glass, and composites. Choose 120 Mesh for thin or delicate materials where chipping is unacceptable. Use 60 Mesh when speed is the priority over surface finish.

Q2. Which grade is recommended for sandblasting and surface preparation?

20/40 or 30/60 for heavy rust removal on ship hulls, bridges, and pipelines (Sa 2.5 / Sa 3, ISO 8501-1). Use 80# for automotive and aluminum components requiring a finer anchor profile. Use 120# for precision parts or decorative matte finishing before electroplating or anodizing.

Q3. How many times can garnet sand be recycled?

3 to 5 times under standard blast cabinet conditions, thanks to its high hardness (Mohs 7.5-8) and low friability. This reduces abrasive consumption and solid waste by up to 65-80% per job compared to single-use abrasives, significantly lowering your cost per m² treated.

Q4. What certifications does the product have?

ISO 9001:2015 certified quality management system. Each lot is backed by SGS third-party chemical and particle size test reports. The factory is independently audited by BV Full test reports are available upon request or ship with every order.

Q5. How do you ensure quality before shipment?

We provide a free 500 g pre-production sample before every bulk order. Final inspection covering particle size, moisture, and chemical composition is conducted before loading. Customers are welcome to appoint their own third-party inspector - SGS, BV, or Intertek - and we fully cooperate.

Q6. How long has Junda been in the garnet sand business?

Jinan Junda Industrial Technology Co., Ltd. was established in 2005. We have over 20 years of experience in manufacturing and exporting abrasive materials.

Q7. Do you own your own mine and production facility?

Yes. Junda operates a vertically integrated supply chain - from mining rights and on-site mineral processing to finished product packaging and export. This eliminates middlemen, ensures consistent raw material quality, and gives us full control over production standards and pricing.

Q8. Which countries and industries do you serve?

We export to 90+ countries including the USA, Germany, Japan, Australia, UAE, and South Korea. Key industries served include shipbuilding, oil & gas pipeline coating, bridge and steel structure construction, waterjet fabrication, automotive manufacturing, water treatment, and aerospace surface preparation.

Q9. What is your production capacity and can you handle large orders?

Our monthly production capacity is 3,000 metric tons. We maintain buffer stock of key grades to support urgent orders. Lead time is consistently 10-15 working days from order confirmation, shipping from Qingdao Port - one of China's largest deep-water container terminals.

Q10. What is the MOQ and how do I get a sample?

MOQ is 1 metric ton for all standard grades. Free 500 g samples are available before any bulk order - no commitment required. Simply contact us with your grade requirement and application, and we will arrange dispatch promptly.

Q11. What payment terms and shipping options do you accept?

Payment: T/T (50% deposit + 50% before shipment), L/C at sight, Western Union, D/P. Incoterms: FOB, CIF, EXW, DDP, FAS. We ship from Qingdao Port with full export documentation including packing list, commercial invoice, certificate of origin, and SGS test report.

Q12. Do you offer OEM / ODM and custom packaging?

Yes. We accept custom mesh sizes, private-label packaging with your brand, non-standard bag formats, and blended mesh formulations - all from 1 metric ton. Our in-house lab can adjust particle size distribution to match your specifications or third-party reference standards.