What GPM does a skid steer screening bucket need?

Most skid steer screening buckets require 15 to 30 GPM of auxiliary hydraulic flow. Standard-flow skid steers typically produce 15 to 22 GPM, which is adequate for many screening buckets. High-flow buckets that require 25+ GPM need a high-flow skid steer or a hydraulic upgrade. Always check the bucket manufacturer's specifications against your machine's auxiliary flow rating before purchasing.

Can I use a screening bucket on a Bobcat?

Yes. Most screening buckets use a universal skid steer quick-attach plate that fits Bobcat and other major skid steer brands. The key factor is not the brand of skid steer but the machine's auxiliary hydraulic flow and lift capacity. Check your specific Bobcat model's specs to make sure the screening bucket you are considering is compatible.

How many yards per hour can a skid steer screening bucket process?

Typical throughput ranges from 10 to 25 cubic yards per hour, depending on material type, moisture content, screen opening size, and operator technique. Dry, free-flowing topsoil screens at the higher end of that range. Wet or clay-heavy material drops production significantly.

Is a screening bucket worth it for a small landscaping business?

For many small landscaping operations, a skid steer screening bucket is one of the best equipment investments available. If you already own a skid steer, you add screening capability for $6,000 to $20,000 instead of $50,000+ for a standalone screener. The screened product sells for $15 to $25 more per cubic yard than raw material, so the bucket can pay for itself within a few months of regular use.

What is the difference between a vibrating screening bucket and a rotary screening bucket?

A vibrating screening bucket uses a hydraulic motor to shake a flat mesh screen. Material falls through the mesh openings as it vibrates. This design is simpler, less expensive, and works well with dry, free-flowing material. A rotary screening bucket uses rotating drums, blades, or star discs to tumble and separate material. Rotary designs handle wet, sticky, and clay-heavy material much better because the rotation is self-cleaning. Rotary buckets cost more but offer greater versatility.

When should I upgrade from a screening bucket to a standalone screener?

When your screening volume consistently exceeds 20 to 25 cubic yards per hour, or when you find yourself screening for more than half of your working day, a standalone screener will improve your productivity and product quality. Screening buckets top out at roughly 150 to 200 cubic yards per full working day. A small shaker screen or trommel can double or triple that output with one operator.

WHO

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Description

WHO Grinder Screens

GrinderCrusherScreen builds replacement grinder screens for WHO machines. We confirm your dimensions before we build. Call 770-433-2670 or submit a quote request to get started.

Models We Build Screens For

GrinderCrusherScreen builds replacement grinder screens for the following WHO models: P12, P13, P1256

Don't see your model listed? That doesn't mean we can't build it. Call 770-433-2670. If we have the drawing or you can provide measurements, we can quote it.

How to Order

Call 770-433-2670 or submit a quote request online. Have your WHO model number ready. We verify the fit before we cut steel. If you do not have documentation for your machine, provide the panel dimensions and we work from your measurements.

Screen Specifications

Hole Sizes: 1", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4", 4-1/2", 5", 6", custom

Hole Patterns: Round, Square, Diamond, Hex

Steel Grades: A572 (mild steel), AR400/FM400 (harder, longer life), AR450 (hardest option for most abrasive materials)

Need help selecting a hole size or steel grade? Call 770-433-2670 and describe your material and target output. We will spec it for you.

Lead Time

Lead times vary by machine and current shop volume. Your sales rep will give you a current timeline when you call or submit your quote request. Order before your screen fails, not after.

Frequently Asked Questions

Can you build screens for WHO models other than the P12, P13, and P1256?

Yes. The P12, P13, and P1256 are the WHO models we have confirmed drawings for. That is not a complete list of what we can build.

Call 770-433-2670. If we have the drawing on file or you can provide measurements, we can quote it.

What hole size should I run on my WHO grinder?

The right hole size depends on what you are producing. Bulk mulch typically calls for 2" to 2-1/2". Fine or bagged material often calls for 1" to 1-1/2". Coarser applications like biomass or playground chips run 3" to 4" and up. See the full breakdown: Grinder Screen Size Guide

When should I replace my WHO grinder screen?

Watch for output running consistently larger than your target size, holes that have stretched or warped, visible cracks, or increased fuel draw without a change in feed rate. Catching it early prevents a rejected load or unplanned downtime. See the full guide: When to Replace Your Grinder Screens

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Specifications

Stock Number	WHO-02445
Bolt Holes	1", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4", 4-1/2", 5", 6", custom

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