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Operating-weight guide

Attachments for the Caterpillar 325 weight range

Bucket line
DB - heavy duty digging bucket800–1600 mm wide
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Catalogue sizes for the 325

Each size below has a catalogue row rated for a carrier of 28,400 kg operating weight. Tell us which sizes you want and we reply with an offer.

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AttachmentSizesCapacity [dm³]Width [mm]Weight [kg]
DB - heavy duty digging bucketDB-300 · 6 width variants628–1,569 SAE800–1,600655–1,100
SDB - heavy duty skeleton DB bucketSDB-300 · 2 width variants1,375–1,492 SAE1,500–1,6001,051–1,106
DBF - flat-top digging bucket for quick couplerDBF-300 · 6 width variants630–1,550 SAE800–1,600580–957
RDBF - flat-top skeleton DBF bucket on rodsRDBF-300 · 3 width variants1,306–1,550 SAE1,400–1,600837–922
DSX - Nordic heavy duty digging bucketDS-HD-300 · 3 width variants678–1,178 SAE800–1,200755–1,002
GD - rigid grading & ditching bucket, 12–40 tGD-300 · 3 width variants1,059–1,447 SAE1,800–2,400691–874
GDH - heavy duty hydraulic grading & ditching bucketGDH-300 · 3 width variants1,012–1,384 SAE1,800–2,400953–1,129
SB - Dutch profile grading & ditching bucketSB-300 · 5 width variants1,346–1,957 SAE1,800–2,500773–1,009
DCB - grading & ditching bucket with round profileDCB-300 · 3 width variants955–1,304 SAE1,800–2,400590–748
PS - Scandinavian universal / grading bucketPS-300 · 4 width variants1,389–1,830 SAE1,800–2,200863–1,043
PSH - hydraulic swivelling grading bucketPS-300 · 4 width variants1,800–2,200
TH - hydraulic thumb for excavatorTH-30800620
AC - excavator asphalt cuttersAC-30165
MR - heavy duty excavator multi-ripperMR-321,300994
RIP - heavy duty ripperRipper-D403
DuoRIP - double ripper for root extractionDuo-Ripper-30500565
GRB - excavator grading beamGRB maxi · 6 variants2,500–3,000357–680
QC-S - S-System Scandinavian quick-couplerQC-S70, QC-U-S70270
CW - CW-System compatible quick-couplerCW-40, CW-40 S, CW-45, CW-45 S, CW-U-40, CW-U-40 S, CW-U-45, CW-U-45 S230–1,146
QC-HS / QC-MS - MS-System compatible quick-couplerQC-HS-25310
QC-PG - pin-grabber quick-coupler for factory bracketsQC-PG-90, QC-ML-M-65, QC-ML-M-70, QC-U-PG-90132–440
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Welded to EN ISO 3834-2. Agree it as a standing term of supply and the EN 10204 3.1 certificate ships with every attachment. You also get the CE declaration of conformity for every product that carries the CE mark.

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Caterpillar 325
Caterpillar 325Photo: Bene Riobó, CC BY-SA 4.0, via Wikimedia Commons

Sizes are matched to the published operating weight of the 325.

Weight Class
Large Excavator (12–30 t)
Operating Weight
28,400 kg
  • Family-owned group, founded in 1996
  • More than 50,000 attachments delivered
  • Built in our own factory in Poland

Operating weight as published by Caterpillar, retrieved 2026-09-13. Source

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
213

Not sure which system it is? Three measurements tell us which bracket you need.

  1. Measure the diameter of both pins.
  2. Measure the distance between the pin centres.
  3. Measure the width between the inside faces of the ears.

If the coupler has a make or type printed on it, send that too.

Send me the spec sheet for my machine

Pick a bucket line and we email you its spec sheet, with the sizes we build for the 325.

Machine

Caterpillar 325

We usually reply within 1 working day.

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Machine, line and sizes

Caterpillar 325: DBF - flat-top digging bucket for quick coupler (DBF-300)

325 at a glance

FigureValueSource
Max dig depth6,700 mmmaker's document (s7d2.scene7.com)
Max reach10,130 mmmaker's document (s7d2.scene7.com)
Max dump height8,540 mmmaker's document (s7d2.scene7.com)
Arm length2,900 mmmaker's document (s7d2.scene7.com)
Main pump flow429 l/minmaker's document (s7d2.scene7.com)
Auxiliary flow51 l/minmaker's document (s7d2.scene7.com)
Auxiliary pressure140 barmaker's document (s7d2.scene7.com)
Bucket capacity0.46–1.59 m³maker's document (s7d2.scene7.com)
Bucket width600–1,350 mmmaker's document (s7d2.scene7.com)
Lift capacity7,450 kgmaker's document (s7d2.scene7.com)
Quick couplerPin Grabber QC Bmaker's document (s7d2.scene7.com)
Transport width3,170 mmmaker's document (s7d2.scene7.com)

Only figures the maker publishes for this model. Where a figure is missing, no value is shown.

What the 325 figures mean for its attachments

  • Its auxiliary circuit is rated at 51 l/min and 140 bar. A breaker, auger, tilt rotator or other hydraulic tool states the oil flow it needs, so choose one whose range includes this figure.
  • The main pump delivers up to 429 l/min at 350 bar. That is the pump output of the whole machine, not the flow an attachment gets.
  • Caterpillar lists this quick coupler for it: Pin Grabber QC B. The bracket on every attachment has to match the coupler.
  • It digs down to 6,700 mm. That is the deepest trench it can open.
  • Its maximum reach is 10,130 mm.
  • It dumps at up to 8,540 mm, so a truck or skip side has to sit below that height.
  • Its arm is 2,900 mm long.
  • Caterpillar lists buckets from 600 to 1,350 mm wide for this machine. Compare that with the bucket widths in the table above.Our sizes in that range: DB - heavy duty digging bucket (DB-300); DBF - flat-top digging bucket for quick coupler (DBF-300); DSX - Nordic heavy duty digging bucket (DS-HD-300)
  • Caterpillar lists bucket capacities from 0.46 to 1.59 m³.
  • Caterpillar gives a lifting capacity of 7,450 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
  • For transport it measures 8,890 x 3,170 x 3,210 mm (length, width, height).

Figures as published by Caterpillar in its own documents.

How the 325 compares with its neighbours

The nearest models by weight, with the difference to the 325 in parentheses where both makers publish the figure.

ModelOperating weightMax dig depthMain pump flowAuxiliary flow
32528.4 t6,700 mm429 l/min51 l/min
Caterpillar 32625.6 t (-2.8 t)6,820 mm (+120)481 l/min (+52)54 l/min (+3)
Caterpillar 32325 t (-3.4 t)11,690 mm (+4,990)429 l/minnot published
Volvo EC26028.46 t (+0.06 t)6,590 mm (-110)480 l/min (+51)not published

Figures as each maker publishes them. A difference is shown only where both machines have a published value.

325: what the brochure names

Features Caterpillar names in its own brochure for the 325. Some of them may be optional, so check the machine's spec before you order.

  • An engine that meets EU Stage V.
  • Use with a tiltrotator.
  • Telematics for tracking the machine remotely (VisionLink).
  • Work modes you select from the cab.

From Caterpillar's published brochure. We keep the source document on file.

Questions about the 325

What bucket width fits the 325?
Caterpillar lists buckets from 600 to 1,350 mm wide for it. Pick a width in that range from the sizes above.
Which quick coupler is installed on your 325?
Caterpillar lists this coupler for it: Pin Grabber QC B. Order attachments with the matching bracket.
Can the 325 run a hydraulic attachment?
Yes, if the tool's rated range covers the auxiliary circuit: 51 l/min at 140 bar.

Each family shows its candidate models by operating-weight range.

Before you order: check the interface

The weight class of the Caterpillar 325 sizes the attachment. It does not tell you the pin diameter, the pin spacing or the stick width, and those decide whether an attachment fits. Measure them on the machine, or send us the measurements of the bucket it runs today.

At this weight the choice is mostly about the material. A general purpose bucket suits soil and gravel, a reinforced bucket with thicker wear parts suits mixed ground and broken rock, and the quick coupler on the machine sets the bracket every attachment needs.

Quick coupler brackets at this weight

In our model tables, the attachments listed for the Caterpillar 325 at its weight are built with these brackets. Each code opens the models that list it.

  1. Measure the diameter of both bucket pins.
  2. Measure the distance between the pin centres.
  3. Measure the inside width between the stick ears.
  4. If the machine runs a quick coupler, note its make and type.

What these terms mean:

How to choose an attachment for the job:

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

Need Custom Specifications?

We can manufacture attachments to your exact pin spacing and requirements for Caterpillar 325.

Get a price Custom Engineering

Welded to EN ISO 3834-2. Agree it as a standing term of supply and the EN 10204 3.1 certificate ships with every attachment. You also get the CE declaration of conformity for every product that carries the CE mark.

Do you sell Caterpillar machines? Machine dealer supply

Machine makes and model names belong to their owners. Sieruta is not affiliated with them. We use the names only to show which machines we offer attachments for, by operating weight.

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