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This dolomite lump is calcined and sized 2-5cm for use in float glass manufacturing, with a confirmed chemical composition of CaO 30%, MgO at least 18%, and Fe2O3 no higher than 0.07%. These exact values ensure minimal iron contamination, critical for producing clear and tinted glass without discoloration. The material is processed to maintain consistent particle size, reducing variability in furnace melt behavior.
Calcined dolomite of this grade is a standard fluxing agent in float glass furnaces, where precise CaO and MgO ratios stabilize the melt and improve surface quality. The low Fe2O3 level distinguishes it from lower-grade dolomite used in construction or agriculture, which often exceed 0.2% iron. This product is not crushed or ground; it is delivered as natural lumps to prevent dusting during handling and feeding into batch mixers.
Buyers include float glass plants in Southeast Asia, Europe, and North America that require batch consistency for high-volume production. The product is typically shipped in bulk containers or big bags, with standard packaging designed for dry transport. Lead time and minimum order quantities are not specified in the listing; buyers should confirm these directly with the supplier to align with production schedules.
| Chemical Composition - CaO | 30% |
| Chemical Composition - MgO | 18% minimum |
| Chemical Composition - Fe2O3 | 0.07% maximum |
| Particle Size | 2-5 cm |
| Physical Form | Calcined dolomite lumps |
| Typical Bulk Density | 1.5 to 1.7 tonnes per cubic meter, standard for calcined dolomite |
| Typical Moisture Content | Less than 0.5%, typical for industrial-grade calcined dolomite |
| Typical Loss on Ignition | 35-40%, standard range for calcined dolomite after decomposition of carbonates |
| Typical Al2O3 Content | 0.5-1.5%, common in natural dolomite deposits used for glass |
| Typical SiO2 Content | 1.0-3.0%, standard for dolomite sourced from sedimentary deposits |
Son Ha Int'l Investment & Development is based in Hanoi, Viet Nam, with a physical address listed in Dong Da District. The supplier operates as a direct exporter of industrial minerals, with no public information on factory ownership or processing capacity. The listing shows no verified certifications, production history, or client references. Response metrics are unavailable, indicating limited engagement on the platform.
The company's focus appears limited to this single product listing, with no additional product categories or verified trade history visible. There is no mention of internal quality control, lab testing, or export experience beyond the provided chemical specifications. Buyers should treat this as a direct sourcing opportunity from a local exporter, not a manufacturer with documented production systems.
Premium calcined dolomite lump in 2-5cm size is a critical raw material for float glass manufacturing, providing controlled calcium oxide and magnesium oxide content for superior glass quality. This grade meets strict Fe2O3 limits ideal for clear and tinted glass production. Widely traded internationally for glass plant operators and industrial mineral importers seeking consistent batch composition and competitive pricing for high-volume procurement.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Before placing an order, verify the chemical composition of each batch with a recent test report showing CaO, MgO, Fe2O3, Al2O3, and SiO2 levels. Confirm the particle size distribution via sieve analysis, not just average size. Request proof of calcination temperature and duration, as incomplete calcination can disrupt glass furnace operations. Do not rely on the supplier's claim without independent verification.
Confirm the Incoterms, packaging type, and lead time directly with the supplier. Bulk shipments are typically moved in 20- or 40-foot containers with polyethylene-lined big bags. Lead time is not stated; expect 25-40 days from order confirmation to port of departure. Payment terms are not specified - negotiate letter of credit or advance payment terms based on supplier reliability and shipment volume.
Conduct a pre-shipment inspection for moisture content, foreign matter, and particle size consistency. Request a certificate of analysis with each shipment, including Fe2O3 and LOI values. Ensure packaging is intact and labeled with batch number and chemical specs. Retain samples from each delivery for quality audits. Document any deviations in composition or physical form to protect against claims.
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When sourcing Dolomite Lump For Floating Glass Mill for your business, securing the right balance of quality and cost is essential. Son Ha Int'l Investment & Development, a supplier based in Viet Nam, offers this product with key specifications including Premium Grade Calcined Dolomite for Glass, CaO 30%, MgO 18%min, Fe2O3 0.07%max, SiO2, Al2O3 trace, and Lump 2-5cm, consistent particle size distribution. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $40/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2518.20, making it a staple in the Dolomite sector with strong demand from importing countries worldwide.
Importing Dolomite Lump For Floatin requires careful attention to shipping logistics, customs compliance, and secure payment terms. Son Ha Int'l Investment & Development offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 2518.20 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Dolomite Lump For Floatin for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Dolomite category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Importing Dolomite Lump For Floatin requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 2518.20 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Dolomite Lump For Floating Glass Mill from Son Ha Int'l Investment & Development is $40/Bags on FOB terms from Viet Nam. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Son Ha Int'l Investment & Development through EximNext.
The supplier, Son Ha Int'l Investment & Development, has set a Minimum Order Quantity (MOQ) of 1 Bags for Dolomite Lump For Floatin. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Dolomite Lump For Floating Glass Mill is classified under HS Code 2518.20. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Dolomite Lump For Floatin from Viet Nam, negotiate shipping terms (FOB, CIF, or EXW) directly with Son Ha Int'l Investment & Development. Ensure you have the necessary import licenses for Dolomite products in your destination country.
Open the Son Ha Int'l Investment & Development company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
The key specifications for Dolomite Lump For Floating Glass Mill supplied by Son Ha Int'l Investment & Development include Premium Grade Calcined Dolomite for Glass, CaO 30%, MgO 18%min, Fe2O3 0.07%max, SiO2, Al2O3 trace, and Lump 2-5cm, consistent particle size distribution. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Son Ha Int'l Investment & Development offers Dolomite Lump For Floatin with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Dolomite Lump For Floatin is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Son Ha Int'l Investment & Development through our platform.
Son Ha Int'l Investment & Development maintains international quality certifications. These ensure that the Dolomite Lump For Floatin meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Son Ha Int'l Investment & Development will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Son Ha Int'l Investment & Development.
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