Description
Product Overview
The LDEXIN 4 Inch Diamond Grinding Cup Wheel is engineered for demanding industrial applications where precision and durability are paramount. Constructed with a high‑concentration diamond grit #30 brazed onto a robust metal core, this cup wheel offers aggressive material removal while maintaining a smooth finish. The disc measures 100 mm (4 inches) in diameter with a 16 mm (5/8 inches) arbor bore, making it compatible with a wide range of grinding machines. Weighing just 3.21 oz, the wheel balances lightweight handling with the strength needed to cut through granite, marble, steel, iron, and masonry. Its design promotes efficient heat dissipation, especially when used with water cooling, extending the wheel’s service life and reducing wear.
Key specifications include a 30‑grit diamond concentration that ensures rapid cutting action, a brazed bond that secures the diamonds firmly to the wheel, and a versatile bore size that fits standard 5/8 inches arbors. The product is packaged as a single 4 inch disc, identified by model JJ001280, and meets rigorous industry standards for safety and performance.
![[Product front view showing all components]](https://www.instahomes.store/wp-content/uploads/2026/08/64644df0fc9d474e8359320b383bc4b2.jpg)
Usage
This cup wheel excels in both wet and dry grinding scenarios. In wet applications, the water coolant reduces friction, prevents overheating, and minimizes dust, making it ideal for indoor environments and for cutting delicate materials like porcelain tiles or glass. Dry grinding is suitable for outdoor or high‑temperature tasks where water is impractical. The wheel’s aggressive 30‑grit profile is perfect for shaping, profiling, and removing excess material from stone countertops, concrete slabs, and metal components. Professionals such as stone fabricators, metalworkers, and construction crews will find the wheel’s reliability and speed valuable for meeting tight project deadlines.
Because the wheel is designed for a 5/8 inches arbor, it fits most standard bench grinders, angle grinders, and portable rotary tools. Users should always secure the wheel firmly, verify the machine’s RPM does not exceed the wheel’s rating, and employ appropriate personal protective equipment, including eye protection and hearing protection.
Why Choose Us
LDEXIN is a recognized brand in abrasive technology, committed to delivering high‑quality products backed by rigorous testing. Our 4 inch diamond grinding cup wheel benefits from a proprietary brazing process that fuses the diamond particles to the metal matrix, ensuring consistent performance even under heavy loads. The wheel’s high diamond concentration reduces the frequency of replacements, delivering cost savings over time.
We stand behind every wheel with a no‑questions‑asked return policy. If the product does not meet your expectations, simply contact our support team for a hassle‑free replacement or refund. Our customer service team is available to assist with technical inquiries, installation guidance, and after‑sales support, ensuring you get the most out of your purchase.
Quality assurance is reinforced through multiple inspections, including visual checks for uniform diamond distribution, balance testing to prevent vibration, and performance trials on a variety of substrates. This comprehensive approach guarantees that each wheel leaves the factory ready for immediate, reliable use on the job site.
Key Features
- High‑concentration 30 grit diamond provides fast, aggressive cutting on hard materials.
- Brazed bond ensures diamonds stay securely attached for longer wheel life.
- 4 inch (100 mm) diameter with 5/8 inch arbor fits most standard grinders.
- Suitable for both wet and dry grinding, reducing dust and heat buildup.
- Backed by LDEXIN’s customer‑first return and support guarantee.
FAQ
What materials can this cup wheel cut?
The wheel is designed for granite, marble, stone, concrete, steel, iron, and other masonry materials. It also works well on glass, ceramics, porcelain tiles, and certain plastics when used with water cooling.
Is the wheel safe for use on a standard bench grinder?
Yes, as long as the grinder’s spindle size matches the 5/8 inch arbor and the machine’s RPM does not exceed the wheel’s maximum rating. Always follow the grinder’s safety guidelines.
Can I use this wheel for dry grinding?
Dry grinding is possible, but wet grinding is recommended for most applications to reduce heat, dust, and wear, extending the wheel’s service life.
What is the warranty or return policy?
LDEXIN offers a no‑questions‑asked return policy. If you are not satisfied, contact our support team for a replacement or refund within the specified return window.
How do I maintain the wheel for optimal performance?
Store the wheel in a dry environment, avoid exposing it to extreme temperatures, and regularly inspect for cracks or wear. Use appropriate coolant when grinding to keep the wheel cool and reduce wear.




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