Buckets · Mini excavator - skeleton
RGB - skeleton rod grading & sorting bucket
- For machines of 1.8–16 t
- Widths 1200–2000 mm
- Couplers: S-System · Lehnhoff MS · MARTIN M · Wacker Neuson HS · Verachtert CW · OilQuick OQ
- We usually reply within 1 working day
- We check the fit before we send the quote
- 12 months warranty on manufacturing defects in the components Sieruta makes itself
- Every offer names the dispatch week
- If a bracket we made is wrong and does not fit your machine, we replace it.
Call +48 503 808 636 Message us on WhatsApp Photos and voice notes are welcome.
- RGB
- For machines of 1.8–16 t
- Widths 1200–2000 mm
Models and specifications
Figures as printed on this family’s datasheet.
Datasheet (PDF)- Which bracket does your machine take? See the coupler fit reference
- Looking for your machine by make and model? See the machine fit tables
| Model | Machine class [t] | Width [mm] | Height [mm] | Length [mm] | Heaped capacity ISO 7451 [dm³] | Spacing [mm] | Tip radius [mm] | Quick coupler brackets | Weight [kg] | |
|---|---|---|---|---|---|---|---|---|---|---|
| RGB-30 | 1.8–2.5 | 1,200 | 313 | 440 | 118 | 45 | 329 | S30 · S40 · MS03 · M03 · HS02 · CW05 · OQ40 | 77 | Price & lead time |
| RGB-40 | 2.5–4.0 | 1,400 | 376 | 525 | 200 | 50 | 397 | S40 · MS03 · M03 · HS03 · CW05 · OQ40 | 108 | Price & lead time |
| RGB-60 | 4.0–6.0 | 1,400 | 396 | 552 | 220 | 50 | 417 | S40 · MS03 · M03 · HS06 · CW10 · OQ40 | 120 | Price & lead time |
| RGB-90 | 6.0–10 | 1,800 | 427 | 593 | 340 | 50 | 451 | S45 · S50 · MS08 · M10 · HS06 · HS08 · CW10 · OQ45 | 183 | Price & lead time |
| RGB-120 | 10–12 | 1,800 | 478 | 662 | 415 | 50 | 505 | S45 · S50 · MS10 · M18 · HS08 · CW20 · OQ45 | 234 | Price & lead time |
| RGB-160 | 12–16 | 2,000 | 478 | 662 | 593 | 50 | 505 | S60 · MS10 · M18 · CW20 · OQ60 | 315 | Price & lead time |
→ Scroll the table sideways to see every model.
Features
Base features:
- C45 steel round rods
- Side rod reinforcement
Optional features:
- Special shape HD Hardox® rods
- HB400 Hardox® Reversible Cutting Edge
- Hydraulic tilting version available
From the catalogue
Compliance, certification & documentation
- EN ISO 3834-2 Certified welding quality CSW/1293/2025
- EN 1090-1 EXC1 + EXC2 Factory production control 1433-CPR-0257
- EN ISO 9606-1 · WPQR EN ISO 15614 Qualified welders and procedures
- EN ISO 9712: VT + PT level 2 Non-destructive testing where the drawing or inspection plan requires it
- EN 10204 3.1 Material traceability
Warranty
12 months warranty on manufacturing defects in the components Sieruta makes itself.
Normal wear, misuse or overloading and unauthorised modifications are not covered. Warranty terms and claims
Why buy from the factory
- Cutting, machining, welding and painting on one site, our own factory in Poland, EU
- More than 50,000 attachments delivered since 2008
- A record for every serial number, so the spare parts match your attachment
Request a quote
Tell us your machine and the job. An engineer checks the fit, and we usually reply within 1 working day.
More from this family group
RGP Skeleton rod GP bucket
Parallel Hardox® rods in the universal GP profile let fine material fall through and keep the oversize in the bucket. Screening, loading and sorting happen in one movement.
SGP Heavy duty skeleton GP bucket
Built on the GP bucket, with a bottom of S355 steel ribs instead of a closed plate. Fine soil and water fall through, and stones, roots and rubble stay in the bucket.
GPO GP bucket with perforated bottom
Holes cut in the bottom let soil fall through while stones stay in the bucket. A mini or midi excavator sorts stone from soil as it digs.
RGPL Skeleton rod GPL bucket
Built on the GPL bucket, with a bent top section for digging and a recessed bracket as an option. A mini-excavator separates material and cleans up with it.
GPLO GPL bucket with perforated bottom
The bottom plate has holes cut in it, so fine soil, sand and water fall through while stones and roots stay in. You dig and screen in the same pass.
SGPL Heavy duty skeleton GPL bucket for mini-excavator
Built on the GPL bucket, with S355 steel ribs in the bottom instead of a closed plate. A mini or midi excavator separates fine soil and water from stones, roots and rubble in the same pass.
