Skid Steer Screening Bucket vs Excavator Screening Bucket
A skid steer screening bucket uses a vibrating screen on a quick attach; an excavator screening bucket uses rotating stars on a hammer circuit.
A skid steer screening bucket mounts on a skid steer quick attach and sifts material with a hydraulic vibrating screen, while an excavator screening bucket like the Raytree RESB55 uses rotating stars and runs on an excavator's hammer circuit. Both separate fines like topsoil and sand from rock and debris right at the pile. Chupp Industrial in Chouteau, Oklahoma compares two of them here: the Wolverine SB-12-72W for skid steers and the Raytree RESB55 for excavators.
What does a skid steer screening bucket do?
A skid steer screening bucket separates fines from dirt, gravel, sand, demolition debris and large rocks, then digs and loads material. The Wolverine 72" vibrating screening bucket (model SB-12-72W) mounts on a skid steer quick attach and uses a hydraulic vibrating screen to do the sorting.
What does an excavator screening bucket do?
An excavator screening bucket separates rocks, debris and oversized material from soil, compost, sand and other loose material. The Raytree RESB55 excavator screening bucket uses rotating self-cleaning stars instead of a vibrating screen. The Raytree RESB55 is listed for wet and dry materials and runs on a standard one-way hammer circuit.
How do the specs compare?
The Wolverine SB-12-72W is 72 inches wide and mounts on a skid steer quick attach; the Raytree RESB55 is 55 inches wide, fits 4 to 9 ton excavators and needs 10 to 20 GPM of hydraulic flow.
| Spec | Wolverine SB-12-72W | Raytree RESB55 |
|---|---|---|
| Machine | Skid steer | Excavator, 4-9 ton class |
| Working width | 72" | 55" |
| Screening system | Hydraulic vibrating screen | Rotating self-cleaning stars |
| Mount | Skid steer quick attach | Excavator |
| Overall dimensions | 49" x 77" x 32" | 61" L x 39" W x 38.2" H |
The Wolverine SB-12-72W lists a 7/8 cubic yard bucket capacity and a 4/5" x 4/5" screen mesh. The Raytree RESB55 lists a 1,204 lb operating weight.
Which screening bucket fits your job?
- You run a skid steer - the Wolverine SB-12-72W is the one that mounts. The Wolverine is also the wider bucket, at 72 inches.
- You run a 4 to 9 ton excavator with a hammer circuit - the Raytree RESB55 is built for that class.
Full specs for each are on the skid steer attachments and excavator attachments pages.
Questions on the right machine for the job?
Straight answers on stock, freight, and what actually fits — no pressure.
