About Junan Tongda Electronic Equipment Factory - Grinding Wheel Supplier in China

China hosts Junan Tongda Electronic Equipment Factory, which currently lists eight active products. The items span grinding wheels, abrasive discs, fiberglass grinding discs, cutting discs for aluminium, flap wheels, garnet sand and a high specific gravity abrasive. Specific catalogue entries include the T27/T29 grinding wheel, a generic grinding disc, a T27/T29 abrasive fiberglass grinding disc, a cheap environmental cutting disc for aluminium (HS 6804.22, aluminium oxide/silicon carbide abrasive grain with resin bond), a popular flap wheel, a corundum metal flap wheel, 80‑grit garnet sand and a high specific gravity abrasive (HS 2513.29, iron‑aluminum silicate garnet with Mohs hardness 7).

The supplier’s top categories are listed as Grinding Wheel, Abrasives, Fiberglass and Sandstones & Sands. All eight products fall under these categories and are identified by their respective HS‑code families where provided. The catalogue therefore covers both bonded abrasive tools and bulk abrasive minerals, reflecting a typical product mix for Chinese abrasive manufacturers.

Product Range and Specialties of Junan Tongda Electronic Equipment Factory

The catalogue offers resin‑bonded grinding wheels (T27/T29) typically used in metal‑working, generic grinding discs for surface preparation, and fiberglass‑reinforced grinding discs that combine abrasive grains with a woven backing for flexibility. The cutting disc for aluminium uses aluminium oxide or silicon carbide grains with a resin bond, falling under HS 6804.22, a common code for abrasive cutting wheels. Flap wheels listed include a popular cloth‑backed version and a corundum‑based metal flap wheel, both used for finishing operations. The sand product is an 80‑grit garnet sand, a standard abrasive mineral with particle size around 0.1‑0.3 mm, while the high specific gravity abrasive is a garnet‑type mineral (HS 2513.29) with Mohs hardness 7, often selected for high‑efficiency sandblasting. In the broader market, grinding wheels are graded by grit size (e.g., 30‑120) and bond type (resin, vitrified), flap wheels by cloth type and abrasive grain, and garnet sands by mesh (80‑120) and specific gravity (4.0‑4.2).

Trade and Export Information - Junan Tongda Electronic Equipment Factory

China is a leading exporter of bonded abrasive tools and abrasive minerals. HS 6804 covers cutting and grinding discs, while HS 2513 covers mineral abrasives such as garnet, which are shipped in bulk bags or 20‑ft containers to Europe, North America and Southeast Asian metal‑working and construction sectors. Buyers typically request ISO 9001 quality‑management certification, CE marking for safety, material safety data sheets (MSDS) and test reports confirming grain hardness, grit distribution and bond strength. Export logistics often use FOB Shanghai or Ningbo, with common Incoterms CIF for European ports. Packaging for grinding wheels and discs is usually cardboard boxes with protective foam, whereas bulk garnet sand is packed in woven polypropylene bags (25 kg) or bulk sacks (1 ton).

Sourcing from Junan Tongda Electronic Equipment Factory - Buyer Guidance

When sourcing from this supplier, request the MSDS for the aluminium‑oxide/silicon‑carbide cutting disc and the grain‑size analysis report for the high specific gravity garnet abrasive. Verify that the grinding wheels conform to the required grit range (e.g., 30‑120) and bond type for your application, and ask for a sample batch to confirm resin‑bond integrity. Typical minimum order quantities are one 20‑ft container for bulk sand (≈20 tons) or 1 000 pcs for wheel products, with lead times of 30‑45 days after order confirmation.

What HS codes apply to the cutting disc for aluminium and the high specific gravity abrasive?

The aluminium cutting disc is classified under HS 6804.22, which covers abrasive cutting wheels, while the high specific gravity garnet abrasive falls under HS 2513.29, the code for mineral abrasive products such as garnet.

Which material specifications should I verify for the cutting disc?

Confirm that the abrasive grain is aluminium oxide or silicon carbide with a resin bond, and request a hardness test (e.g., Vickers) and grain‑size distribution report to ensure it meets your cutting requirements.

What are the typical grit ranges for the T27/T29 grinding wheels?

T27/T29 grinding wheels are generally offered in grit sizes from 30 to 120, suitable for coarse material removal to fine finishing, with resin or vitrified bonds depending on the application.

Are ISO or CE certifications required for these abrasive products?

Buyers usually request ISO 9001 for quality management and CE marking for safety compliance when importing abrasive tools from China. Verify whether the supplier holds these certificates or can provide equivalent test reports.

What packaging is used for the 80‑grit garnet sand?

Garnet sand is typically packed in 25 kg polypropylene bags or bulk woven sacks of up to 1 ton, which are then loaded into 20‑ft containers for export.

What is the usual lead time and minimum order quantity for flap wheels?

Lead times are typically 30‑45 days after order confirmation. Minimum orders are often 1 000 pieces per flap‑wheel type, though larger quantities may be negotiated for container loads.

How can I obtain a sample of the fiberglass grinding disc?

Request a sample of the T27/T29 abrasive fiberglass grinding disc, specifying the required grit and backing cloth. Suppliers usually provide a limited number of discs (e.g., 10‑20 pcs) free of charge for performance testing.