Grinder Screens

Built to Perform

Custom-fit, high-strength screens and wear parts for tub and horizontal grinders.

Get the right hole shape and size for  output.

Premium, wear-resistant steel

Custom sizes to fit your grinder

25+ years industry experience

One-stop source for screens, tips, hammers & more

A man working on a machine in a factory

Hole Shapes That Work

as Hard as You Do

- Round Holes: Reliable, stress-crack resistant; consistent end product.

- Square Holes: Great for high-volume horizontal grinding; uniform chips, max production.

- Diamond Holes: Best for wet/fibrous material (brush, grass, compost); improved flow, reduced clogging.

- Hex Holes: More open area than round; strong throughput with quality sizing.

- Rectangular Holes: Move bulk fast; ideal for primary grinding and high-output systems.

A man working on a machine in a factory
A man working on a machine in a factory
A man working on a machine in a factory

Why It Matters

The shape and size of your screen holes directly affect your production rate, wear life, and final material sizing. Choosing the right pattern means fewer breakdowns, better output, and more profit.

  • Built to Fit Your Grinder

  • Cut from Premium Steel

  • Custom Sizes Available

Choosing the Right Grinder Screen Hole Size

The size and shape of your grinder screen holes have a major impact on your end product. Whether you're grinding for mulch, compost, biomass, or general volume reduction, getting the right screen setup is the key to better output, less wear, and smoother operation.

silver and gold screw driver
silver and gold screw driver

Picking the Right Hole Size

(Rule of Thumb)

In most grinding setups, your finished material will be roughly half the size of the screen holes. It’s not an exact science—material type, moisture, and tip condition all play a role—but it’s a reliable place to start.

Real-World Examples

  • 2" holes = around 1" finished material

  • 3" holes = about 1.5" average output

  • 1.5" holes = approximately ¾" product

If your product is coming out too long, inconsistent, or stringy, the hole size—or tip sharpness—might need a second look.

What to Consider When Picking Hole Size

✔️ Type of Material

Clean wood, mixed debris, green waste, or construction material all grind differently. Some materials shear easily, while others need a tighter cut to break down properly. If you’re working with stringy or tough material, a smaller hole or specialized shape may help.

✔️ Moisture Content

Wet or damp material (like brush, compost, or fresh-cut limbs) doesn’t behave the same as dry wood. If holes are too large, wet feedstock can mat up or bridge, slowing down production. Smaller or open-flow patterns like diamond or hex can help keep things moving.

✔️ Final Product Goals

For mulch or compost that needs a fine, uniform size, screen holes between 1¼″ and 1¾″ usually work best. If you're just knocking down volume—like with brush piles or land clearing—larger openings from 2" to 4" will get you faster results.

✔️ Grinder Setup

Different machines respond better to certain hole styles. Tub grinders often run best with round or hex holes, while horizontal grinders benefit from square or rectangular holes that allow more material through, faster.

Bonus Tip: Keep Tips Sharp

If your output looks rough—even with the right screen—check your cutting tips. Dull or unevenly worn tips can let material pass through without being fully processed, making your screen work harder than it should.

Beyond Screens — Wear Parts & Components

Screens, hammers, cutterbars/anvils, wear plates, tips, hardware—plus floor chain, drag chain, and conveyor belting. One supplier for grinding and material-handling components.