Jinan Junda Industrial Technology Co., Ltd

Name: Jinan Junda Industrial Technology Co., Ltd
Address: Ouya-Daguan, Shizhong District, Shandong, Jinan, 250001, CN
Telephone: +8615806668333
Price range: ££

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Jinan Junda Industrial Technology Co., Ltd

Jinan Junda Industrial Technology Co.,Ltd, established in 2005. Leading OEM&ODM in sandblasting equipment and abrasive field.

Jinan Junda Industrial Technology Co., LTD, established in 2005, is a professional firm engaged in the research, development, sale, and service of Steel Shot, Steel Grit, sandblaster, sandblasting machine, garnet sand. We are located in Jinan with convenient transportation access. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always availabl

e to discuss your requirements about sandblasting abrasives, glass beads, bearing steel grit, stainless steel shot, steel ball, grinding ball, aluminum oxide, develop new sandblasting equipment(sandblasting pot, sandblasting cabinet), spray paint and coating equipment and the spare parts to ensure full customer satisfaction in many different Sand Blasting, Surface Preparation, and Corrosion Control industries. In addition, we have obtained I S O 9 0 01 certification, C E certification, and K O C certification. Selling well in all cities and provinces around China, our products are also exported to clients in more than 100 countries and regions as the USA, Canada, Chile, Peru, Argentina, Australia, Germany, UK, Denmark, Norway, Sweden, Netherlands, Russia, Poland, Qatar, Kuwait, Saudi Arabia, Japan, Malaysia, Indonesia, and South Africa. We also welcome O E M and O D M orders. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements. Adhering to the business principle of mutual benefits, we have a reliable reputation among our customers because of our professional services, quality products, and competitive prices. We warmly welcome customers from at home and abroad to cooperate with us for common success.

11/06/2026

Post-Blasting Surface Treatment By White fused alumina

White fused alumina is the preferred abrasive for precision metal parts, 3D printed components, stainless steel and aluminum alloy finishing, featuring high hardness, zero iron contamination and excellent self-sharpening performance. White fused alumina blasting creates a uniform, fine matte rough surface on workpieces, effectively removing oxide layers, welding spots, light rust and surface impurities. However, standardized post-blasting treatment is essential to stabilize the blasting effect, improve corrosion resistance and enhance coating adhesion.
1. Complete Residual Sand & Dust Removal
White fused alumina fine particles easily remain in workpiece micropores, gaps and corners. Immediately after blasting, use high-pressure clean air to blow away residual dust and abrasives thoroughly. For complex precision parts, clean with soft brushes to avoid particle residues that cause paint bubbling, peeling and surface defects.
2. Degreasing & Deep Cleaning
After dust removal, wipe the workpiece surface with alcohol or acetone to eliminate oil stains, sweat and dust. White fused alumina blasting can achieve Sa3 super-high cleanliness, and degreasing treatment ensures a pure metal substrate for subsequent processing.
3. Timely Surface Protection & Finishing
The metal surface becomes highly active after blasting and is prone to rapid oxidation and rusting. It is recommended to finish subsequent processing within 4 hours. For workpieces requiring painting, powder coating or electroplating, proceed with coating immediately. The uniform micro roughness formed by blasting greatly improves coating adhesion and prevents peeling. For uncoated workpieces, passivation or anti-rust oil treatment is recommended for long-term anti-corrosion protection.
4. Strict Surface Quality Inspection
Detect surface roughness (standard 50-75μm for precision parts) with a roughness tester. Check uniform texture, no residual sand and no oxidation spots to ensure surface accuracy and flatness, meeting high-standard requirements for medical equipment, molds, engineering machinery parts and precision components.
Conclusion: White fused alumina blasting optimizes the surface base, while professional post-treatment locks the overall quality. It effectively improves workpiece wear resistance, corrosion resistance and coating stability, extending service life and upgrading product grade.

09/06/2026

Reliable High-Quality Steel Balls & Steel Rods for Ball Mill & Rod Mill Grinding 🪨
Different grinding scenarios require matched grinding media. Our forged steel balls and steel rods are professionally customized for coarse and fine grinding operations:
✅ Steel Balls: Ideal for secondary fine grinding, ultra-fine powder processing of metal ores, cement, and ceramic raw materials, achieving uniform fine particle output
✅ Steel Rods: Perfect for primary coarse grinding, effectively reducing over-crushing, ensuring even material particle size, and improving subsequent sorting efficiency
Made of high-quality raw materials with dense internal structure, these media feature long service life, low abrasion loss, and stable operation even in harsh mining and industrial environments. Greatly reduce your equipment maintenance frequency and production costs.
Professional grinding solutions for mining, metallurgy, construction materials and chemical industries!
DM us for customized specifications & factory wholesale price!💬

04/06/2026

Rock Garnet Sand VS Green Garnet Sand

Rock garnet and green sandblasting garnet represent naturally mined/crushed mineral sand and sandblasting abrasives with specific mineral compositions, respectively. They are not opposing materials, but rather differ physically in particle shape and trace components.
The following is a detailed comparison:
1.Mineral Nature and Classification: Rock Garnet: Primarily refers to natural garnet sand produced by mining vein rocks, followed by crushing, grinding, and sieving. It is mostly almandine, ranging in color from slightly reddish to dark red, with extremely sharp edges.
Green Sandblasting Garnet: In sandblasting abrasives, greenish garnet usually refers to grossular garnet (such as green sand garnet) or garnet containing special mineral symbiotic elements. Because it does not contain free silica, it is often used in environmentally friendly, dust-free sandblasting operations.
2.Morphology and Cutting Performance: Rock Garnet (Angular): Due to being formed from crushed hard rock, the particle surface has sharp, pointed edges. Extremely strong cutting force, making it ideal for precision waterjet cutting or sandblasting requiring high surface roughness in industry.
Green sandblasting garnet (polygonal/spherical): This type of garnet, due to its moderate hardness and good toughness, is often processed into specific mesh sizes for dust-free sandblasting. It can remove oxide scale from metal surfaces with high-speed impact and is not easily embedded in the workpiece.
3.Hardness and density (reference indicators): Rock sand garnet (almandine garnet): Mohs hardness approximately 7.5 (sim 8.0), density approximately 4.0 (sim 4.2 g/cm^3). Due to its high specific gravity, it has high impact kinetic energy during sandblasting, resulting in extremely high rust removal efficiency.
Green sandblasting garnet (mainly grossular garnet): Mohs hardness approximately 7.0 (sim 7.5), relatively light density. Good wear resistance, preventing damage to the substrate during specific paint removal and cleaning of soft metal surfaces.
4.Main Industrial Applications of Rock Sand Garnet: Widely used in high-pressure water jet cutting processes, as well as high-standard sandblasting and rust removal (up to Sa3 highest grade) for steel structures, storage tanks, and ship hulls.
Green Sandblasting Garnet: Specifically designed for surface strengthening, glass etching, surface cleaning of light metals such as aluminum/titanium, and in working environments with extremely high dust and environmental protection requirements.

02/06/2026

High-quality grinding balls in stock & shipping now✨ Durable & wear-resistant for all grinding equipment. Tight packaging & strict quality control for every order. Sufficient stock and fast delivery. Welcome global business inquiries!

01/06/2026

On Children's Day, wish all kids healthy growth and endless smiles.🥳

27/05/2026

Warm wishes for a blessed Eid Al-Adha! May your days be filled with hope, prosperity and joy.

21/05/2026

A Must-Read for Ship Repair: Copper Slag vs. Garnet Sand– How to Choose the Right Blasting Abrasive?

In ship rust removal and coating pretreatment, copper slag and garnet are two common blasting abrasives. Each has its own characteristics, with the main differences as follows:

1. Source and Composition
Copper slag is a by-product in the copper smelting process and belongs to artificial abrasives. Garnet is a naturally mined non-metallic mineral with a stable composition.

2. Hardness and Shape
Garnet has a Mohs hardness of approximately 7.5–8.0, with sharp, angular particles. Copper slag has a slightly lower hardness, and its particles are mostly blocky or brittle in structure.

3. Usage Pattern
Garnet can be recycled 3-5 times, making it suitable for multiple reuses. Copper slag is typically used 1-2 times or as a single-use abrasive without recovery.

4. Blasting Effect
The surface cleanliness of garnet after sandblasting can reach Sa3 level, with uniform roughness and less embedded sand. Copper slag sandblasting can also achieve a relatively good degree of cleanliness, but the characteristics of the surface residues are different.

5. Cost Structure
Copper slag has a lower unit price, but because it is often used only once and has high consumption volume, the total cost should be calculated based on actual working conditions. Garnet has a slightly higher unit price, but it can be recycled, resulting in lower consumption per unit area.

6. Working Environment
Both sandblasting processes will generate a certain amount of dust. The amount of garnet dust is relatively small, while the amount of copper slag dust is slightly higher. Both require corresponding dust prevention measures.

The choice of abrasive depends on the specific process requirements, budget and working conditions of the ship maintenance project. For ship maintenance, long-lasting anti-corrosion is the key. Choosing the right abrasive can make your efforts twice as effective with half the effort!

19/05/2026

Efficiency starts with reliable supply! ⚙️ Another batch of premium Steel Shot is on its way to our customers. We know that every minute counts in your production line, and we’re here to ensure you never run out of quality abrasives. Reliable supply, unbeatable quality. Get a quote today! 👇

14/05/2026

Dustless & automatic recycling sandblaster

Junda dustless &automatic recycling sand blaster , is suitable for various metal and non-metal abrasives such as steel grit, steel shot, brown fused aluminum, and glass bead,etc. With the vacuum recycler, it is dustless and widely used in the sand blasting industry, environment friendly and healthy to operators.
Working principle:
This equipment uses compressed air as the power source. It sprays abrasive materials at high speed onto the surface of the workpiece. Through the impact of the abrasive materials, the rust and dirt on the surface of the workpiece are removed, achieving a certain level of cleanliness and roughness on the surface. Then, by generating negative pressure through compressed air, the sand materials and dust are recovered, and the complete abrasive materials are separated by the sand dust separation system and recycled for further use. The dust and rust enter the dust collection bucket. Under the control of a single switch, all the actions such as sand blasting, sand recovery, sand dust separation, sand material recycling, and dust filtration will be automatically completed. The working environment is clean and pollution-free, meeting the dust hygiene standards for the workshop air.
Performance features:
1.Environmentally friendly design, with automatic recovery and separation of abrasive materials, rust stains, and dust;
2.Equipped with a cartridge-type dust collection system and automatic pulse valve for cleaning;
3.Handcart-style design, facilitating easy movement and operation;
4.The sanding control method adopts remote control, with instant on and off capabilities.
Application Industry:
It is applicable for removing toxic paint residues in the hull water storage tank, dust-free sandblasting for rust removal in shipyards, rust removal in oil storage tanks, sandblasting for wind turbine towers, bridge anti-corrosion, and pre-treatment for water gate structures in water conservancy projects. It is an ideal cleaning equipment for removing rust, removing oxide scales, removing paint, removing dirt, and enhancing the surface finish of metal structures such as repair blasting machines, sandblasting rooms with missed parts, large steel plates, I-beams, and stainless steel parts before coating.

Address

Ouya-Daguan, Shizhong District, Shandong
Jinan
250001

Telephone

+8615806668333

Website

https://www.jnjunda.com/

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