Buckets · Digging buckets
CB - heavy duty hydraulic clamp bucket
- For machines of 10–26 t
- Widths 1,000–1,200 mm
- Couplers: S · MS · CW · OQ · M · SW
- We usually reply within 1 working day
- We check the fit before we send the quote
- 12 months warranty on manufacturing defects
- 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 636Message us on WhatsAppPhotos and voice notes are welcome.
Standard
CB Hydraulic clamp / grab bucket
The whole range: Excavator buckets
Compatible interfaces: S · MS · CW · OQ · M · SW
- 10–26 tons
- Carriers: Midi, Large
The CB is a digging bucket with a hydraulic clamp arm on top. The bucket digs, the arm closes onto the load, and between them they pick up what a plain bucket drops: demolition rubble, stumps, pipes, awkward stone.
About this family
The CB hydraulic clamp bucket grabs, sorts and moves material. The double pilot check valve holds the load.
The CB hydraulic clamp bucket digs and can also grab, sort and carry material. It is used for laying pipes, moving tree trunks and handling large stones and debris.
A double pilot check valve holds the clamp shut if a hose fails, and the bucket carries the CE mark. Three sizes: CBR-120 for 10 to 12 t machines at 1000 mm wide, 430 dm3 and 355 kg;
CBR-190 for 12 to 19 t at 1200 mm, 803 dm3 and 631 kg; CBR-260 for 19 to 26 t at 1200 mm, 1071 dm3 and 1100 kg.
Arms are built in several shapes, and the brackets run from S60, MS10, CW20, OQ60, M18 and SW33 on the smallest to S70, MS21, CW40, OQ70, M26, S2 and SW48 on the largest.
Features
- Hydraulic Clamp: Holds the material while it is grabbed and moved.
- Grabbing, Sorting, Transporting: The clamp closes on the load, so the bucket can pick it up and move it.
- Arms in several shapes
- Double Pilot Check Valve (Standard): Holds the clamp shut if a hose fails.
- Steel build
- Carries the CE marking
- Available teeth systems: CAT J series, BYG Futura, ESCO UltraLok
Dimensions
The letters on the drawing match the columns in the table below.
Dimensions in mm
Typical jobs
The CB Hydraulic Clamp Bucket is used for:
- Loading, unloading and sorting rocks, pipes, debris and tree trunks
- Landscaping work where material is carried and set down in place
- Construction work where one attachment grabs, sorts and carries
- Work in confined spaces or on complex jobsites
- Material handling where the load must be held in the clamp
- Demolition projects requiring material sorting and handling
- Recycling operations for separating material
The CB Hydraulic Clamp Bucket lets your excavator dig, then pick up rubble, stumps, pipes and awkward stone. Contact us and we will show you what it can do for your work.
Which coupler is on your machine?
Pick the system on your machine and we put it in your enquiry. We check the bracket before we send the quote.
How to measure your coupler
Not sure which system it is? Three measurements tell us which bracket you need.
- Measure the diameter of both pins.
- Measure the distance between the pin centres.
- Measure the width between the inside faces of the ears.
If the coupler has a make or type printed on it, send that too.
- Loading machines…
Models and specifications
Figures as printed on this family’s datasheet. A dash means the datasheet does not state that figure.
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] | Capacity [dm³] | Number of teeth | Tip radius [mm] | Quick coupler brackets | D [mm] | E [mm] | Weight [kg] | Get a price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CBR-120 | 10–12 | 1000 | 843 | 1142 | 430 | 5 | 820 | S60 · MS10 · CW20 · OQ60 · M18 · SW33 | 750 | 1100 | 355 | Get a price |
| CBR-190 | 12–19 | 1200 | 1010 | 1479 | 803 | 5 | 1127 | S70 · MS10 · CW30 · OQ65 · M18 · S1 · SW33 | 900 | 1400 | 631 | Get a price |
| CBR-260 | 19–26 | 1200 | 1240 | 1597 | 1071 | 5 | 1143 | S70 · MS21 · CW40 · OQ70 · M26 · S2 · SW48 | 1100 | 1700 | 1100 | Get a price |
→ Scroll the table sideways to see every model.
Compliance, certification & documentation
- 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 testingwhere the drawing or inspection plan requires it
- EN 10204 3.1Material traceability
- CE: 2006/42/ECCE markingTransition to Regulation (EU) 2023/1230 underway. Applicable from 20 January 2027.
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
Standard
DBF - Flat-top digging bucket for quick coupler
The flat top suits excavators that change attachments on a quick coupler. It comes in Economy, Standard, Heavy Duty and Rock versions.
Fits your machine
Standard
GD - Rigid grading & ditching bucket, 12–40 t
The rigid body has no tilt joint, so there are no hoses or cylinders to connect. It is used to grade surfaces and clean ditches.
Fits your machine
Standard
GDH - Heavy duty hydraulic grading & ditching bucket
The hydraulic tilt grading bucket shapes slopes and levels uneven ground.
Fits your machine
StandardEarthmoving / heavy duty
DB - Heavy duty digging bucket
A digging bucket for most materials, with a rock version for harder ground.
Fits your machine
Standard
SDB - Heavy duty skeleton DB bucket
The SDB separates material as you dig: soil falls through the ribs while stone, rubble and roots stay in the bucket.
Fits your machine
Standard
RDBF - Flat-top skeleton DBF bucket on rods
Interlocking steel rods replace the solid bottom, C45 as standard and Hardox® as an option. Soil sifts out from the rocks while you dig trenches, drains and pipe bedding.
Fits your machine
