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Buckets · Riddle buckets

SDB - heavy duty skeleton DB bucket

  • For machines of 10–50 t
  • Widths 1000–2000 mm
  • Couplers: Verachtert CW · Liebherr SW
Price & lead timeGet price & lead timeDownload product sheet (PDF)
  • 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.

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SDB - heavy duty skeleton DB bucket in the workshop, photo 1

Models and specifications

Figures as printed on this family’s datasheet. A dash means the datasheet does not state that figure.

Datasheet (PDF)

Column heads: model and Machine class [t] · each cell: Heaped capacity ISO 7451 [dm³] / Weight [kg]

Models of this family with the figures printed on its datasheet
Width [mm]SDB-12010–12SDB-16012–16SDB-23016–24SDB-30024–30SDB-40030–40SDB-50040–50
1,000435 / 286543 / 392Price & lead time
1,200548 / 333687 / 448Price & lead time
1,4001,183 / 833Price & lead time
1,5001,290 / 8801,375 / 1,051Price & lead time
1,6001,492 / 1,1061,917 / 1,411Price & lead time
1,8002,224 / 1,5502,622 / 1,995Price & lead time
2,0003,000 / 2,172Price & lead time
Price & lead timePrice & lead timePrice & lead timePrice & lead timePrice & lead timePrice & lead time
Height [mm]8669781,1301,2341,4271,578
Length [mm]9251,0461,2961,3181,5111,678
Tip radius [mm]7858861,0711,1211,2831,431
Tooth systemsJ250, V19, U20J300, V29, U30J300, V29, U30J350, V33, U35J350, V33, U35J400, V39, U40
Quick coupler bracketsCW20 · SW33CW20 · SW33CW30 · SW33 · SW48CW30 · CW40 · SW48CW45 · SW48 · SW66CW55 · SW66
SDB - heavy duty skeleton DB bucketPrice & lead time: SDB - heavy duty skeleton DB bucket

Standard

The whole range: Excavator buckets

Compatible interfaces: CW · SW

Sieruta
  • 10–50 tons
  • Carriers: Large, Heavy

The SDB is a skeleton version of the DB digging bucket. Rods take the place of the solid bottom, so soil falls through while stone, rubble and roots stay in the bucket.

Features

  • Interlocking Ribs for Sifting and Separating Material
  • Soil falls through as you dig, so there is less sorting afterwards
  • HB500 cutting edge for digging and sorting material
  • Available in Various Rib Spacings for Diverse Materials
  • Hardox® rods option; C45 rods standard
  • Available teeth systems: CAT J series, BYG Futura, ESCO UltraLok

About this family

SDB riddle bucket: a digging bucket with steel ribs that let fine material fall through as you dig.

The SDB riddle bucket digs and sifts in one pass. Interlocking steel ribs sift and separate the material while you dig. It is used for trenching, drainage work and pipe bedding.

The sorting happens as you dig, which is why it is used for trenching, drainage and pipe bedding: the fines go back in the trench and the stone goes on the heap. Six sizes cover machines from 10 to 50 t, SDB-120 through SDB-500, in widths from 1000 to 2000 mm and weights from 286 to 2172 kg.

Rods are C45 as standard and Hardox® on request, and the spacing is built to the material you sort. Teeth come in the CAT J series, BYG Futura and ESCO UltraLok systems.

Dimensions

  • Dimensions in mm

Typical jobs

The SDB full-size riddle bucket for excavators is used for:

  • Construction waste sorting and processing
  • Topsoil and compost screening
  • Aggregate separation and grading
  • Demolition material handling and sorting
  • On-site material processing
  • Trenching projects (utilities, drainage, foundations)
  • Pipe bedding and backfilling in trenches
  • Sorting out and removing debris during excavation
  • Landscaping work where stones and roots are sifted out of the soil
  • Jobs where the same bucket digs, sifts and sorts the material

On the SDB riddle bucket the rib spacing decides what falls through and what stays in the bucket. Tell us the material and we confirm the rib spacing.

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.
Materials
Standard: Rods: C45
Options: Rods: Hardox®

See the certificate details

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

Request the CE declaration for your serial number

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
  • A bucket shell with its internal ribs, before painting.
  • Fitting a pin into a machined coupler body.
  • A cylinder and its hoses being fitted inside a weldment.

Request a quote

Tell us your machine and the job. An engineer checks the fit, and we usually reply within 1 working day.

Price & lead timeGet price & lead time

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