Tools · Grading beams
GRB light - mini-excavator grading beam with lowered mass
GRB Grading & levelling beam
- 0.6–7 tons
- On request
- Carriers: Mini, Midi
The GRB light is a grading beam for mini excavators from 0.6 to 7.0 t. You use it to level the ground to a flat surface before further ground work.
About this family
Grading Beams are a useful attachment for mini 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.
There are two versions: GRB-MIKRO, the standard grading beam, and GRBH-MIKRO, the hydraulic grading beam. Both come in 1500, 1800 and 2000 mm widths and are 346 mm long and 267 mm high. GRB-MIKRO weighs 86, 100 or 113 kg and GRBH-MIKRO 113, 128 or 141 kg, depending on width.
A grading beam is wide and flat, so you get a large working width and a clear view of the edge. It levels more precisely than a standard grading bucket.
Feature highlights
- Machine class: 0.6 to 7.0 t
- Two versions: GRB-MIKRO standard and GRBH-MIKRO hydraulic
- Widths: 1500, 1800 and 2000 mm
- Weight: 86 to 113 kg standard, 113 to 141 kg hydraulic
Key features:
- Rugged steel roller
- HB500 Cutting Edge
- Tiltrotator Compatible
- Adjustable Roller, both up & down
- High-Quality Bearings
- Bearing to Roller Connection secured from mechanical damage
- Basic version: no roller
- Premium version: hydraulic tilting
- Bolt-On Bracket / Adapter
- 250 mm Extendable Side Beams
- Mounting spot for level measuring device
- Hydraulic cylinder guard
- HB500 Wear Bars on bottom
Ideal use cases
- Levelling ground before further ground work
- Finish grading in landscaping
- Preparing driveways, paths and building pads
Dimensions
The letters on the drawing match the columns in the table below.
Dimensions in mm Dimensions in mm
Compatibility
- Carrier classes
- MiniMidi
- 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] | Weight [kg] |
|---|---|---|---|---|---|---|
| GRB-MIKRO | Standard grading beam | 0.6 - 7.0 | 1500 | 267 | 346 | 86 |
| GRB-MIKRO | Standard grading beam | 0.6 - 7.0 | 1800 | 267 | 346 | 100 |
| GRB-MIKRO | Standard grading beam | 0.6 - 7.0 | 2000 | 267 | 346 | 113 |
| GRBH-MIKRO | Hydraulic grading beam | 0.6 - 7.0 | 1500 | 267 | 346 | 113 |
| GRBH-MIKRO | Hydraulic grading beam | 0.6 - 7.0 | 1800 | 267 | 346 | 128 |
| GRBH-MIKRO | Hydraulic grading beam | 0.6 - 7.0 | 2000 | 267 | 346 | 141 |
→ Scroll the table sideways to see every model.
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.