Tungsten Carbide Grinding Jar
This is a tungsten carbide grinding jar for ball mills used in dry or wet grinding. It is made from YG8 grade cemented carbide with 94% tungsten carbide, 5% cobalt, and 1% other elements. The jar is designed for high wear resistance and…
Product Overview
This is a tungsten carbide grinding jar for ball mills used in dry or wet grinding. It is made from YG8 grade cemented carbide with 94% tungsten carbide, 5% cobalt, and 1% other elements. The jar is designed for high wear resistance and dimensional stability under abrasive and corrosive conditions. It is suitable for grinding materials that are hard or chemically aggressive.
Key Benefits
- High hardness and wear resistance extend service life in abrasive grinding tasks
- Resists acid, alkali, alcohol, ether, hydrocarbons, oil, detergent, and sea water
- Maintains shape and hardness at temperatures from -100°C to 400°C
- No deformation or cracking under thermal or mechanical stress
- Matches grinding ball hardness to prevent excessive wear on both jar and balls
Technical Data
Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.
| Material | Tungsten carbide (WC-Co) |
|---|---|
| Grade | YG8 |
| Composition | 94% tungsten carbide, 5% cobalt, 1% other |
| Temperature Range | -100°C to 400°C |
| Volume | 0.05L, 0.1L, 0.25L, 0.5L, 1L, 2L, 5L |
| Structural Form | Vertical type |
| Leak Tightness | IP60 |
| Bending Strength | ≥2320 N/cm² |
| Compression Modulus | 56 MPa |
| Elasticity Modulus | 510.0 GPa |
| Microhardness | 17800 MPa |
| Lead Time | Stock items 3-5 days after payment; customised items quoted per order |
Problems It Solves
- Steel or ceramic grinding jars wear out quickly when grinding hard or abrasive materials
- Chemical attack from acids or alkalis reduces jar life and contaminates the product
- Thermal cycling causes cracking or deformation in low-temperature-resistant materials
- Mismatched hardness between jar and grinding balls leads to rapid wear of both
- Contamination from metal particles in steel jars compromises product purity
Who It Is For
- Ball mill and bead mill operators in chemical, pharmaceutical, and materials processing industries
- Research labs and R&D departments requiring contamination-free grinding
- Metal powder producers needing long-life grinding containers for hard materials
- Machinery and equipment manufacturers integrating wear-resistant components
- Industrial suppliers of grinding media and milling systems
Application Scenarios
- Grinding of metal powders such as iron, aluminum, cobalt, chromium, and tungsten
- Processing of refractory materials like alumina, zirconia, silicon, and carbon
- Wet grinding of catalysts and pigments in chemical and pharmaceutical production
- Dry grinding of high-purity materials where contamination from steel must be avoided
- High-volume lab-scale milling with repeated cycles and high abrasion
Technical Features
- Made from YG8 grade cemented carbide with 94% WC, 5% Co, 1% other elements
- Density 14.6 g/cm³, compression modulus 56 MPa, bending strength ≥2320 N/cm²
- Elasticity modulus 510.0 GPa, microhardness 17800 MPa
- Available in volumes from 0.05L to 5L: 0.05L, 0.1L, 0.25L, 0.5L, 1L, 2L, 5L
- Vertical structural form with IP60 leak tightness rating
- Operates reliably from -100°C to 400°C without shape change
Materials and Grades
- YG8 grade cemented carbide with 94% WC, 5% Co, 1% other elements
- High cobalt content improves toughness and resistance to impact and thermal shock
- WC-Co matrix provides high hardness and wear resistance in abrasive environments
- Chemically stable against acids, alkalis, alcohol, ether, hydrocarbons, oil, detergent, and sea water
Customisation Options
- Manufactured to customer drawings or specifications
- Grade selection based on material being ground and operating conditions
- Volume and size adjusted to match existing mill or process requirements
- Samples available for pre-testing before bulk order commitment
How This Part Is Made
Drawing or specification review
Powder blending with precise WC-Co ratio
Pressing on imported press for uniform green density
Over-pressure sintering to close porosity and stabilise structure
Grinding and finishing to final dimensions
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
- Select grinding balls of the same material and hardness to avoid mutual wear
- Use only within the temperature range of -100°C to 400°C to prevent structural change
- Ensure the jar and balls are compatible with the material being ground to avoid contamination
- Do not shock a cold jar into hot service; allow thermal equalisation
- Keep one sample from the first batch for comparison in future quality checks
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Steel grinding jar | Steel wears faster in abrasive or corrosive environments and can contaminate the product; carbide maintains purity and lasts longer |
| Ceramic grinding jar | Ceramic is hard but brittle; carbide resists impact and thermal cycling better without cracking |
| Plastic or glass jar | Plastic deforms under heat and stress; glass breaks under impact; carbide is robust under industrial conditions |
Tungsten Carbide Grinding Jar 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 you produce the products according to my own drawing?
Yes. OEM and ODM to customer drawings is standard for this product.
Can I get a sample before placing a bulk order?
Yes. Samples are available for pre-testing. Send the drawing and service conditions and a sample can be quoted.
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?
For this product, YG8 is standard. It offers a balance of hardness and toughness for most grinding applications. If the load is higher, a higher cobalt grade may be considered.
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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.