Buckets · Mini excavator - grading
GB - rigid grading & ditching bucket, German profile
- For machines of 0.6–10 t
- Widths 600–1800 mm
- Couplers: S-System · Lehnhoff MS · MARTIN M · Verachtert CW · Wacker Neuson HS · Klac · 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.
- GB
- For machines of 0.6–10 t
- Widths 600–1800 mm
Models and specifications
Figures as printed on this family’s datasheet. A dash means we do not make this width for this size.
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
Column heads: model and Machine class [t] · each cell: Heaped capacity ISO 7451 [dm³] / Weight [kg]
| Width [mm] | GB-10 0.6–1.2 | GB-20 1.2–1.8 | GB-30 1.8–2.5 | GB-40 2.5–4.0 | GB-60 4.0–6.0 | GB-90 6.0–10 | |
|---|---|---|---|---|---|---|---|
| 600 | 28 / 22 | Price & lead time | |||||
| 800 | 39 / 28 | 57 / 39 | Price & lead time | ||||
| 1,000 | 50 / 34 | 72 / 47 | 93 / 70 | 124 / 81 | Price & lead time | ||
| 1,200 | 85 / 55 | 114 / 82 | 150 / 94 | 187 / 111 | Price & lead time | ||
| 1,400 | 176 / 107 | 220 / 127 | Price & lead time | ||||
| 1,500 | 236 / 135 | 275 / 170 | Price & lead time | ||||
| 1,600 | 253 / 143 | 295 / 180 | Price & lead time | ||||
| 1,800 | 334 / 200 | Price & lead time | |||||
| Price & lead time | Price & lead time | Price & lead time | Price & lead time | Price & lead time | Price & lead time | ||
| Height [mm] | 237 | 294 | 346 | 390 | 442 | 475 | |
| Length [mm] | 289 | 357 | 407 | 446 | 507 | 559 | |
| Tip radius [mm] | 238 | 309 | 348 | 400 | 445 | 479 | |
| Quick coupler brackets | S30 · MS01 · M02 · CW00 | S30 · MS01 · M02 · HS02 · CW05 · Klac C | S40 · MS03 · M03 · HS02 · CW05 · OQ40 · Klac C | S40 · MS03 · M03 · HS03 · CW05 · OQ40 · Klac D | S40 · MS03 · M03 · HS06 · CW10 · OQ40 · Klac E | S45 · S50 · MS08 · M10 · HS08 · CW10 · OQ45 · Klac F |
Features
- Six sizes: GB-10 to GB-90 for machines from 0.6 to 10 t
- Widths: 600 to 1800 mm
- Capacity and weight: 28 to 334 l, 22 to 200 kg
- Tip radius: 238 mm on GB-10 up to 479 mm on GB-90
- Steel: S355JR2 and Hardox® body, HB500 cutting edge
- Frontside cutting edges
- Cutting edge HB500
- Inner reinforcement rib
- Flat bottom & roof
- Bent section
Optional features:
- Reversible cutting edge HB400
- Rear cutting edge HB500
- Wear bars on bottom
About this family
The Rigid Grading and Ditching Bucket is made for mini-excavators. It is used for ditch maintenance, grading and slope work. It’s available in sizes from 600 mm to 1800 mm, with capacities from 28 dm3 to 334 dm3. It is built from S355JR2 and Hardox® steel, with an HB500 cutting edge. The flat top fits most European mini-excavator quick-coupler systems, and optional wear bars reduce wear on the bucket bottom. A bolt-on cutting edge is available, and the options include suction relief holes for sticky soil and drainage holes.
Six sizes cover machines from 0.6 to 10 t, GB-10 through GB-90, in widths from 600 to 1800 mm. Capacity runs from 28 to 334 litres and weight from 22 to 200 kg. The tip radius grows from 238 mm on GB-10 to 479 mm on GB-90.
The body is S355JR2 and Hardox® steel with an HB500 cutting edge, cutting edges on the front sides, an inner reinforcement rib, a flat bottom and roof and a bent section. Options are a reversible HB400 cutting edge, a rear HB500 cutting edge, wear bars on the bottom and HB500 cutting edges on the front sides. On request it gets suction relief holes, so sticky soil drops out instead of holding to the bottom, or drainage holes that let water run out of the load.
The quick coupler bracket follows the size, from S30, MS01, M02 and CW00 on GB-10 up to S45, S50, MS08, M10, HS08, CW10, OQ45 and Klac F on GB-90.
Dimensions
Dimensions in mm
Typical jobs
- Cleaning out and reshaping ditches
- Grading and levelling
- Cutting and trimming slopes
- Preparing ground for foundations, paths and driveways
- Backfilling trenches and spreading material
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
- Materials
- Standard: Body: S355JR2 and Hardox®; Cutting edge: HB500
- Options: Reversible cutting edge: HB400; Rear cutting edge: HB500
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
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A cylinder swivels the PS mini bucket, so you set the angle of the cutting edge from the cab. It finishes slopes and verges in tight places while the machine stays where it is.
