Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.
Tungsten carbide (WC-Co) milling balls (3–20 mm, 1 kg) with high density and wear resistance for planetary ball milling and hard material grinding.

Polished Tungsten Carbide (WC-Co) Grinding & Milling Media Balls 1 kg

Cell Lab Polished Tungsten Carbide (WC-Co) Grinding & Milling Media Balls — 1 kg Packs Wear-resistant, high-density polishing balls for precision metal powder refining & hard material milling Cell Lab’s polished tungsten carbide (WC-Co) media balls are engineered for high...
Vendor: Cell Lab
SKU: CL0476
Product type: Milling Jars
£339.00
£339.00
Diameter (mm): 3 mm
Subtotal: £339.00
Description
Description
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Cell Lab Polished Tungsten Carbide (WC-Co) Grinding & Milling Media Balls — 1 kg Packs

Wear-resistant, high-density polishing balls for precision metal powder refining & hard material milling

Cell Lab’s polished tungsten carbide (WC-Co) media balls are engineered for high hardness, excellent wear resistance, and chemical stability against acid and alkali environments. These wear-resistant milling balls are ideal for planet­ary ball milling, metal powder refining, ceramic grinding, electronics, paints, inks, battery materials R&D, mining, and chemical engineering where particle size uniformity and minimal contamination are essential.

Key Features (with SEO Keywords)

  • High hardness (＞ 90 HRA) & polished WC-Co balls — reduces wear and delivers consistent performance.

  • High density (14.95 g/cm³) milling media balls for strong impact and faster size reduction.

  • Excellent abrasion & wear resistance, acid/alkali and oxidation stable—longer lifespan in harsh milling of hard materials.

  • Broad size options within 3–20 mm range in 1 kg packs—supports mixing for both coarse and fine grinding phases.

  • Ideal for planetary ball milling, metal powder refining, ceramics, pigments, geology, and battery material formulations.

General Specifications (all variants, 1 kg packs)

  • Material: WC-Co (tungsten carbide–cobalt)

  • Density: 14.95 g/cm³

  • Shape: Spherical, polished finish

  • Hardness: > 90 HRA

  • Compatible samples: hard, abrasive materials

  • Suitable grinding jars: tungsten carbide jars

  • Available sizes (diameters): 3, 4, 5, 8, 10, 12, 15, 20 mm

Variant Specifications (1 kg Packs Only)

Diameter (mm) Product SKU (1 kg) Approx. Count / Balls per kg Notes
3 mm CL0476 ~ 4,735 balls Very fine grinding, high count for uniformity
4 mm CL0477 ~ 2,000 balls Balanced size; common for medium-fine milling
5 mm CL0478 ~ 1,023 balls Mix/coarse tasks; good for faster throughput
8 mm CL0479 ~ 250 balls Larger impacts; good for coarse reduction or pre-grind
10 mm CL0480 ~ 128 balls Coarser media; fewer balls per kg; higher impact per ball
12 mm CL0481 ~ 74 balls Coarse; heavy impact; use carefully to avoid overheating
15 mm CL0482 ~ 38 balls Very coarse reduction; effective for chunky feed or pre-crushed material
20 mm CL0483 ~ 16 balls Maximum impact size; lowest count; high energy per collision


FAQ

Q1: Can I mix different diameters in one 1 kg pack?
A: Yes. Mixing sizes (e.g., 3 mm + 5 mm + 10 mm) helps you achieve both coarse and fine grinding, improving overall efficiency and particle size uniformity.

Q2: What jar material is best for these WC-Co balls?
A: Use tungsten carbide jars to prevent wear and cross-contamination. Softer jars (such as stainless steel or alumina) may degrade quickly under heavy milling.

Q3: Are these balls heat sensitive?
A: WC-Co balls are thermally stable, but larger diameters (12–20 mm) can generate significant heat per impact. Ensure proper cooling and avoid excessively long milling durations.

Q4: How can I tell when the media needs replacing?
A: Watch for visible chipping, reduced diameter, increased surface roughness, or contamination in your milled product. When performance drops, it’s time to replace the media.

Q5: Does a polished finish make a difference?
A: Yes. Polished spherical balls minimise friction and surface irregularities, enhancing motion efficiency and extending both jar and media life.

Q6: Will cobalt leach out from WC-Co?
A: Cobalt serves as a binder in WC-Co. For ultra-low contamination applications, test your final product, control acidic environments, and avoid excessively long milling times.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.