Buckets · Riddle buckets
RDBF - flat-top skeleton DBF bucket on rods
- For machines of 10–50 t
- Widths 1000–2000 mm
- Couplers: S-System · Lehnhoff MS · OilQuick OQ · MARTIN M · Liebherr SW
- 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.
- RDBF
- For machines of 10–50 t
- Widths 1000–2000 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] | RDBF-120 10–12 | RDBF-160 12–16 | RDBF-190 16–19 | RDBF-230 19–23 | RDBF-300 23–30 | RDBF-400 30–40 | RDBF-500 40–50 | |
|---|---|---|---|---|---|---|---|---|
| 1,000 | 536 / 271 | 615 / 402 | Price & lead time | |||||
| 1,200 | 673 / 308 | 773 / 456 | 911 / 563 | Price & lead time | ||||
| 1,300 | 1,003 / 597 | 1,092 / 657 | Price & lead time | |||||
| 1,400 | 1,100 / 630 | 1,199 / 693 | 1,306 / 837 | Price & lead time | ||||
| 1,500 | 1,308 / 730 | 1,427 / 880 | 1,727 / 1,067 | Price & lead time | ||||
| 1,600 | 1,550 / 922 | 1,875 / 1,115 | 2,241 / 1,511 | Price & lead time | ||||
| 1,800 | 2,179 / 1,213 | 2,611 / 1,633 | Price & lead time | |||||
| 2,000 | 2,999 / 1,755 | Price & lead time | ||||||
| Price & lead time | Price & lead time | Price & lead time | Price & lead time | Price & lead time | Price & lead time | Price & lead time | ||
| Height [mm] | 816 | 877 | 962 | 1,022 | 1,100 | 1,220 | 1,375 | |
| Length [mm] | 1,078 | 1,159 | 1,274 | 1,350 | 1,447 | 1,600 | 1,803 | |
| Tip radius [mm] | 818 | 877 | 960 | 1,020 | 1,099 | 1,225 | 1,377 | |
| Tooth systems | J250, V19, U20 | J300, V29, U30 | J300, V29, U30 | J300, V29, U30 | J350, V33, U35 | J350, V33, U35 | J460, V51, U55 | |
| Quick coupler brackets | S45 · S50 · MS10 · OQ45 · OQ60 · M18 | S60 · MS10 · OQ60 · OQ65 · M18 · S1 · SW33 | S60 · MS10 · OQ65 · M26 · S1 · SW33 | S70 · MS21 · OQ65 · OQ70 · M26 · S2 · SW33 | S70 · MS21 · OQ70 · OQ70-55 · S2 · SW48 | S80 · MS25 · OQ80 · S3 · SW48 | S90 · OQ90 · SW66 |
Features
- Interlocking Rods for Separating Material
- HB500 cutting edge for trenching tasks
- Hardox® rods option; C45 rods standard
- Special Hardox® rods available
- Available in Various Rod Spacings
- Available teeth systems: CAT J series, BYG Futura, ESCO UltraLok
- Available brackets: S-System, MS, SW, OQ, EasyLock, Martin, Volvo S and others
About this family
RDBF riddle bucket: interlocking rods separate the material as you dig, for trenching, drainage and pipe bedding.
The RDBF riddle bucket is for trenching with a large excavator. Interlocking steel rods sift soil and stones apart while you dig. It is used for utility trenches, drainage systems and pipe bedding.
Seven sizes, RDBF-120 to RDBF-500, come in widths from 1000 to 2000 mm with 5 or 6 teeth. Capacity runs from 536 to 2999 l and weight from 271 to 1755 kg. Tip radius is 818 mm on the RDBF-120 and 1377 mm on the RDBF-500.
Rods are C45 steel as standard. Hardox® rods, special Hardox® rods and several rod spacings are options. Teeth are CAT J, BYG Futura or ESCO UltraLok, from J250 to J460. Brackets per size run from S45 to S90, MS10 to MS25, OQ45 to OQ90, M18 and M26, S1 to S3 and SW33 to SW66.
Dimensions
Dimensions in mm
Typical jobs
The RDBF rod riddle bucket for excavators is used for:
- Aggregate sorting in quarrying operations
- Construction waste separation on demolition sites
- Topsoil screening for landscaping
- Recycling operations requiring material segregation
- General excavation with integrated sorting capabilities
- Trenching projects of all kinds (utilities, drainage, foundations)
- Pipe bedding and backfilling in trenches
- Sorting out and removing debris during trenching
- Landscaping work where stones and roots are sifted out of the soil
- Trenching where the spoil is sorted in the bucket
The RDBF riddle bucket is made for trenching work. Tell us the material and we confirm the rod spacing.
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: Rods: C45
- Options: Rods: Hardox®
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
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.
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.
GDH Heavy duty hydraulic grading & ditching bucket
The hydraulic tilt grading bucket shapes slopes and levels uneven ground.
Standard Earthmoving / heavy duty
DB Heavy duty digging bucket
A digging bucket for most materials, with a rock version for harder ground.
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.
DSX Nordic heavy duty digging bucket
Nordic profile heavy duty digging bucket for excavators from 14 to 40 t, made of Hardox® 450 for rocky ground.
