Tools · Special tools
GRB - excavator grading beam
GRB Grading & levelling beams
- 2.5–30 tons
- On request
- Carriers: Mini, Midi, Standard
The GRB is a grading beam for excavators. It spreads and levels soil, gravel and sand over a wide strip, and it holds a flatter surface than a grading bucket because the long blade and the roller behind it both ride on the ground.
About this family
Grading Beams are a useful attachment for excavators that can help achieve a flat surface before further ground work. They are available in different widths and come with different tilting and roller options. Excavator grading beams are more precise than a standard grading bucket and are designed to be wide and flat to give you both a large working width and great visibility.
Standard model, rigid with roller: Standard version with a roller on bearings allowing smooth operation. Roller’s height can be adjusted. Hydraulic-tilting model with roller: Everything in standard plus. Tilts up to 45 degrees each side. Double pilot check valve for safety and for holding exact angle. Basic model, rigid without roller: Basic, economic version of the grading bar. Features no roller, so no adjustments are possible. Still very usable in less demanding tasks.
Three versions are built. The Basic beam is rigid and runs without a roller, for straightforward levelling. The Standard beam is rigid and carries a roller on bearings; the roller height is adjustable, so you set how much material stays behind the edge. The hydraulic version tilts up to 45 degrees to each side, which lets you pull a slope or a crossfall without moving the machine.
Two sizes. GRB midi fits machines of 6 to 18 t and comes 2000 or 2500 mm wide; GRB maxi fits 10 to 30 t and comes 2500 or 3000 mm wide. Weights run from 216 kg for the Basic midi 2000 to 680 kg for the hydraulic maxi 3000.
The bottom carries HB500 wear bars and the cutting edge is HB500 as well. The top plate is prepared for a bolt-on bracket, and the beam works behind a tiltrotator.
Options: a bolt-on bracket or adapter, side beams that extend by 250 mm, a mounting spot for a level measuring device, and a guard for the hydraulic cylinder. Hardox wear bars can replace the standard ones.
Feature highlights
- Three versions: Basic without roller, Standard with roller, hydraulic tilting up to 45 degrees each side
- Two sizes: GRB midi 6 to 18 t in 2000 and 2500 mm, GRB maxi 10 to 30 t in 2500 and 3000 mm
Base features:
- HB500 Wear Bars on bottom
- HB500 Cutting Edge
- Top plate ready for Bolt-On Bracket
- Tiltrotator Compatible
- Adjustable Roller
- High-Quality Bearings
- Bearing to Roller Connection secured from mechanical damage
- Bolt-On Bracket / Adapter
- 250 mm Extendable Side Beams
- Mounting spot for level measuring device
- Hydraulic cylinder guard
- Hardox wear bars on bottom of beam - option
Ideal use cases
- Road building and road maintenance
- Preparing and resurfacing parking areas
- Landscape grading on commercial and residential sites
- Levelling a building plot before the foundations go in
- Large earthmoving jobs that have to finish flat
Dimensions
The letters on the drawing match the columns in the table below.
Dimensions in mm
Compatibility
- Carrier classes
- MiniMidiStandard
- Applications
- EarthmovingLandscapingRoad Building
Models and specifications
Figures as printed on this family’s datasheet. A dash means the datasheet does not state that figure.
Datasheet (PDF)| Model | Version | Machine class [t] | Width [mm] | Height [mm] | Length [mm] | Extended length [mm] | Height without adapter [mm] | Roller diameter [mm] | Depth without extension [mm] | Depth with extension [mm] | Quick coupler brackets | Weight [kg] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GRB-MINI | Standard grading beam with roller | 2.5 - 10 | 1000 | – | – | – | 227 | 193,7 | 712 | 966 | – | 140 |
| GRB-MINI | Standard grading beam with roller | 2.5 - 10 | 1500 | – | – | – | 227 | 193,7 | 712 | 966 | – | 182 |
| GRB-MINI | Basic grading beam without roller | 2.5 - 10 | 1000 | – | – | – | 227 | no roller | 540 | 794 | – | 91 |
| GRB-MINI | Basic grading beam without roller | 2.5 - 10 | 1500 | – | – | – | 227 | no roller | 540 | 794 | – | 132 |
| GRBH-MINI | Hydraulic grading beam with roller | 2.5 - 10 | 1000 | – | – | – | 351 | 193,7 | 712 | 966 | – | 216 |
| GRBH-MINI | Hydraulic grading beam with roller | 2.5 - 10 | 1500 | – | – | – | 351 | 193,7 | 712 | 966 | – | 261 |
| GRB midi | Standard model - rigid with roller | 6 - 18 | 2000 | 300 | 884 | 1290 | – | 194 | – | – | S45, S50, S60 | MS08, MS10 | CW10, CW20 | OQ45, OQ60, OQ65 | M18 | S1 | SW33 | 325 |
| GRB midi | Standard model - rigid with roller | 6 - 18 | 2500 | 300 | 884 | 1290 | – | 194 | – | – | S45, S50, S60 | MS08, MS10 | CW10, CW20 | OQ45, OQ60, OQ65 | M18 | S1 | SW33 | 375 |
| GRB maxi | Standard model - rigid with roller | 10 - 30 | 2500 | 340 | 1015 | 1523 | – | 245 | – | – | S70 | MS10, MS21 | CW20, CW30, CW40 | OQ65, OQ70 | M26 | S2 | SW33, SW48 | 482 |
| GRB maxi | Standard model - rigid with roller | 10 - 30 | 3000 | 340 | 1015 | 1523 | – | 245 | – | – | S70 | MS10, MS21 | CW20, CW30, CW40 | OQ65, OQ70 | M26 | S2 | SW33, SW48 | 540 |
| GRB midi | Hydraulic-tilting model with roller | 6 - 18 | 2000 | 445 | 884 | 1290 | – | 194 | – | – | S45, S50, S60, MS08, MS10, CW10, CW20, OQ45, OQ60, OQ65, M18, S1, SW33 | 480 |
| GRB midi | Hydraulic-tilting model with roller | 6 - 18 | 2500 | 445 | 884 | 1290 | – | 194 | – | – | S45, S50, S60, MS08, MS10, CW10, CW20, OQ45, OQ60, OQ65, M18, S1, SW33 | 530 |
| GRB maxi | Hydraulic-tilting model with roller | 10 - 30 | 2500 | 470 | 1015 | 1523 | – | 245 | – | – | S70, MS10, MS21, CW20, CW30, CW40, OQ65, OQ70, M26, S2, SW33, SW48 | 620 |
| GRB maxi | Hydraulic-tilting model with roller | 10 - 30 | 3000 | 470 | 1015 | 1523 | – | 245 | – | – | S70, MS10, MS21, CW20, CW30, CW40, OQ65, OQ70, M26, S2, SW33, SW48 | 680 |
| GRB midi | Basic model - rigid without roller | 6 - 18 | 2000 | 300 | 700 | 1106 | – | – | – | – | S45, S50, S60, MS08, MS10, CW10, CW20, OQ45, OQ60, OQ65, M18, S1, SW33 | 216 |
| GRB midi | Basic model - rigid without roller | 6 - 18 | 2500 | 300 | 700 | 1106 | – | – | – | – | S45, S50, S60, MS08, MS10, CW10, CW20, OQ45, OQ60, OQ65, M18, S1, SW33 | 247 |
| GRB maxi | Basic model - rigid without roller | 10 - 30 | 2500 | 340 | 800 | 1306 | – | – | – | – | S70, MS10, MS21, CW20, CW30, CW40, OQ65, OQ70, M26, S2, SW33, SW48 | 357 |
| GRB maxi | Basic model - rigid without roller | 10 - 30 | 3000 | 340 | 800 | 1306 | – | – | – | – | S70, MS10, MS21, CW20, CW30, CW40, OQ65, OQ70, M26, S2, SW33, SW48 | 372 |
→ Scroll the table sideways to see every model.
Configurable parameters
- Machine type
- 4 options
- Machine weight
- 9 options
- Application
- 2 options
Sieruta-held certifications
- EN ISO 3834-2Certified welding qualityCSW/1293/2025
- EN 1090-1 EXC1 + EXC2Factory production control1433-CPR-0257
- EN ISO 9606-1 · WPQR EN ISO 15614Qualified welders and procedures
- EN ISO 9712: VT + PT level 2Non-destructive testing
- EN 10204 3.1Material traceability
- CE: 2006/42/ECCE markingTransition to Regulation (EU) 2023/1230 underway. Applicable from 20 January 2027.
Option: wear parts made from Hardox on request. We are a member of SSAB's Hardox In My Body programme.
Warranty
Sieruta covers manufacturing defects for original manufactured components.
Carbon transparency data is available for this product family.
View CE declarationTools
Request a quote
Parametric configurator + engineering review. Reply usually within 24–48 hours.
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