Tungsten Carbide Unground Ball
This is a tungsten carbide unground ball used in planetary ball mills for mixing, grinding, and milling abrasive or corrosive materials. It is pressed and sintered from tungsten carbide powder with cobalt or nickel binder. The ball…
Product Overview
This is a tungsten carbide unground ball used in planetary ball mills for mixing, grinding, and milling abrasive or corrosive materials. It is pressed and sintered from tungsten carbide powder with cobalt or nickel binder. The ball maintains high hardness and dimensional stability under high load and temperature. It is supplied unground, so the buyer can finish to exact size and tolerance. It is made to the buyer's drawing or standard size.
Key Benefits
- High hardness maintains shape under repeated impact in high-speed planetary mills
- Wear resistance extends service life compared to steel or ceramic balls in abrasive mixtures
- Resists corrosion from strong acids, bases, and solvents used in chemical and lab processing
- Retains hardness up to 1000°C, suitable for high-temperature milling environments
- No fusion welding during grinding, so material contamination is reduced
Technical Data
Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.
| Material | Cemented tungsten carbide (WC-Co, WC-Ni, WC-Mo) |
|---|---|
| Grades Available | YG6 YG6X YG8 YG8X YN6 YN9 and equivalents |
| Shape | Spherical, unground |
| Dimensions | To customer drawing or standard size |
| Lead Time | Stock items 3-5 days after payment; customised items quoted per order |
Problems It Solves
- Steel balls wear quickly in abrasive or corrosive mixtures, contaminating the product and requiring frequent replacement
- Fusion welding of steel or coated balls during high-speed milling causes clumping and uneven grinding
- Ceramic balls fracture under impact in planetary mills, leading to contamination and downtime
- Low hardness materials fail to crush hard feedstock, reducing mill efficiency
- Inconsistent ball size from stock items leads to uneven grinding and poor repeatability
Who It Is For
- Ball mill and bead mill manufacturers specifying wear-resistant grinding media
- Research labs and pilot plants processing abrasive or corrosive materials
- Catalyst and ceramic powder producers needing non-contaminating grinding media
- Industrial processing plants using planetary mills for fine powder preparation
- Tool and die shops using ball mills for surface treatment and material blending
Application Scenarios
- Planetary ball mill grinding of hard ceramics, oxides, and refractory materials
- Mixing of abrasive powders in pharmaceutical and catalyst production
- Milling of corrosive chemicals in laboratory and pilot-scale processing
- High-speed milling where steel balls would weld or degrade under friction
- Continuous operation in industrial mills where ball replacement frequency must be low
Technical Features
- Pressed from tungsten carbide powder with cobalt or nickel binder
- Sintered in vacuum or hydrogen reduction furnace for high density and stability
- Unground, so the buyer can finish to exact size and tolerance
- Available in standard sizes and custom shapes to match the mill design
- Maintains hardness and shape under high temperature and repeated impact
Materials and Grades
- YG6 and YG6X for high wear resistance in clean abrasive environments
- YG8 and YG8X for balanced hardness and toughness in mixed-duty applications
- YN6 and YN9 for high hardness and resistance to chemical attack in corrosive media
- Cobalt or nickel binder selected for the required toughness and sintering stability
Customisation Options
- Manufactured to customer drawings including non-standard sizes and shapes
- Grade selected based on the material being milled and the operating environment
- Unground balls supplied so the buyer can finish to exact tolerance
- Samples produced for pre-testing before bulk release
How This Part Is Made
Drawing review and grade selection
Powder blending with WC and binder
Pressing on imported press for consistent green density
Sintering in vacuum or hydrogen reduction furnace
Unground, so the buyer can finish to exact size
Dimensional and physical property inspection
Packing and shipping
Quality Control
- Physical properties, shape and tolerance are checked before shipping
- Every order is tested before bulk production is released
- Inspection photographs of the finished order are sent for confirmation before delivery
Use Guide
- Send the material being milled, speed, temperature, and required ball size so the grade can be matched
- Use unground balls to allow final finishing to exact tolerance for consistent mill performance
- Avoid sudden temperature changes; let the ball and mill equalise before operation
- Inspect balls regularly for wear or chipping; replace when size or shape deviates from specification
- Keep one sample from the first batch for comparison in future orders
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Steel ball | Steel is cheaper but wears quickly in abrasives and can contaminate the product; carbide lasts longer and does not weld |
| Ceramic ball | Ceramic is harder but more brittle; carbide withstands impact better in high-speed planetary mills |
| Coated ball | Coating wears through and exposes the base metal; solid carbide wears uniformly through the entire section |
Tungsten Carbide Unground Ball FAQ
Are you a trade company or a manufacturer?
A manufacturer. The company has produced tungsten carbide parts for over 15 years and takes on design and processing of carbide products with technical support.
Where is your factory located?
Zhuzhou City, Hunan Province, China, which is the country's tungsten carbide production base.
Can I get a sample before placing a bulk order?
Yes. Samples are available for pre-testing. Send the drawing and the service conditions and a sample can be quoted.
Can you produce the products according to my own drawing?
Yes. OEM and ODM to customer drawings is standard for this product, including non-standard sizes and shapes.
How long does an order take?
Stock items are shipped 3-5 days after payment is received. Customised items are given a delivery time in the quotation.
How do I know the parts were checked before they shipped?
Physical properties, shape and tolerance are inspected before shipping, and detailed inspection photographs of the order are sent for confirmation before delivery.
Which grade should I choose?
It depends on the material being milled. Lower cobalt grades such as YG6 offer higher wear resistance in clean abrasives; higher cobalt grades such as YG8 or YG15 offer better toughness under impact. Send the operating conditions and a grade will be recommended.
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Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.