Operating-weight guide

Attachments for the CASE CX300E weight range

Bucket line: DB - heavy duty digging bucket800–1600 mm wide

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Catalogue sizes for the CX300E

Each size below has a catalogue row rated for a carrier of 29,600 kg operating weight. Tell us which sizes you want and we reply with an offer.

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Attachment	Sizes	Capacity [dm³]	Width [mm]	Weight [kg]
DB - heavy duty digging bucket	DB-300 · 6 width variants	628–1,569 SAE	800–1,600	655–1,100
SDB - heavy duty skeleton DB bucket	SDB-300 · 2 width variants	1,375–1,492 SAE	1,500–1,600	1,051–1,106
DBF - flat-top digging bucket for quick coupler	DBF-300 · 6 width variants	630–1,550 SAE	800–1,600	580–957
RDBF - flat-top skeleton DBF bucket on rods	RDBF-300 · 3 width variants	1,306–1,550 SAE	1,400–1,600	837–922
DSX - Nordic heavy duty digging bucket	DS-HD-300 · 3 width variants	678–1,178 SAE	800–1,200	755–1,002
GD - rigid grading & ditching bucket, 12–40 t	GD-300 · 3 width variants	1,059–1,447 SAE	1,800–2,400	691–874
GDH - heavy duty hydraulic grading & ditching bucket	GDH-300 · 3 width variants	1,012–1,384 SAE	1,800–2,400	953–1,129
SB - Dutch profile grading & ditching bucket	SB-300 · 5 width variants	1,346–1,957 SAE	1,800–2,500	773–1,009
DCB - grading & ditching bucket with round profile	DCB-300 · 3 width variants	955–1,304 SAE	1,800–2,400	590–748
PS - Scandinavian universal / grading bucket	PS-300 · 4 width variants	1,389–1,830 SAE	1,800–2,200	863–1,043
PSH - hydraulic swivelling grading bucket	PS-300 · 4 width variants		1,800–2,200
TH - hydraulic thumb for excavator	TH-30		800	620
AC - excavator asphalt cutters	AC-30			165
MR - heavy duty excavator multi-ripper	MR-32		1,300	994
DuoRIP - double ripper for root extraction	Duo-Ripper-30		500	565
GRB - excavator grading beam	GRB maxi · 6 variants		2,500–3,000	357–680
QC-S - S-System Scandinavian quick-coupler	QC-S70, QC-U-S70			270
CW - CW-System compatible quick-coupler	CW-40, CW-40 S, CW-45, CW-45 S, CW-U-40, CW-U-40 S, CW-U-45, CW-U-45 S			230–1,146
QC-HS / QC-MS - MS-System compatible quick-coupler	QC-HS-25			310
QC-PG - pin-grabber quick-coupler for factory brackets	QC-PG-90, QC-ML-M-70, QC-U-PG-90			167–440

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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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Cite this table as https://sieruta.com/en/fit/case/case-cx300e, figures as of 2026-09-10.

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<table>
<caption>Families that fit the CASE CX300E, with their own figures</caption>
<thead><tr><th scope="col">Attachment</th><th scope="col">Sizes</th><th scope="col">Capacity [dm³]</th><th scope="col">Width [mm]</th><th scope="col">Weight [kg]</th></tr></thead>
<tbody>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/db-heavy-duty-digging-bucket">DB - heavy duty digging bucket</a></td><td>DB-300 · 6 width variants</td><td>628–1,569 SAE</td><td>800–1,600</td><td>655–1,100</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/sdb-heavy-duty-skeleton-bucket-for-excavator">SDB - heavy duty skeleton DB bucket</a></td><td>SDB-300 · 2 width variants</td><td>1,375–1,492 SAE</td><td>1,500–1,600</td><td>1,051–1,106</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/dbf-flat-top-digging-bucket-for-excavator-with-quick-coupler">DBF - flat-top digging bucket for quick coupler</a></td><td>DBF-300 · 6 width variants</td><td>630–1,550 SAE</td><td>800–1,600</td><td>580–957</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/rdbf-flat-top-skeleton-rod-dbf-bucket">RDBF - flat-top skeleton DBF bucket on rods</a></td><td>RDBF-300 · 3 width variants</td><td>1,306–1,550 SAE</td><td>1,400–1,600</td><td>837–922</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/ds-nordic-heavy-duty-digging-bucket">DSX - Nordic heavy duty digging bucket</a></td><td>DS-HD-300 · 3 width variants</td><td>678–1,178 SAE</td><td>800–1,200</td><td>755–1,002</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/gd-rigid-grading-bucket">GD - rigid grading &amp; ditching bucket, 12–40 t</a></td><td>GD-300 · 3 width variants</td><td>1,059–1,447 SAE</td><td>1,800–2,400</td><td>691–874</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/gdh-heavy-duty-hydraulic-grading-ditching-bucket">GDH - heavy duty hydraulic grading &amp; ditching bucket</a></td><td>GDH-300 · 3 width variants</td><td>1,012–1,384 SAE</td><td>1,800–2,400</td><td>953–1,129</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/sb-dutch-profile-grading-ditching-bucket">SB - Dutch profile grading &amp; ditching bucket</a></td><td>SB-300 · 5 width variants</td><td>1,346–1,957 SAE</td><td>1,800–2,500</td><td>773–1,009</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/dcb-grading-ditching-bucket-round-profile">DCB - grading &amp; ditching bucket with round profile</a></td><td>DCB-300 · 3 width variants</td><td>955–1,304 SAE</td><td>1,800–2,400</td><td>590–748</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/ps-scandinavian-universal-grading-bucket">PS - Scandinavian universal / grading bucket</a></td><td>PS-300 · 4 width variants</td><td>1,389–1,830 SAE</td><td>1,800–2,200</td><td>863–1,043</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/digging/psh-hydraulic-swivelling-grading-bucket">PSH - hydraulic swivelling grading bucket</a></td><td>PS-300 · 4 width variants</td><td></td><td>1,800–2,200</td><td></td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/hydraulic-thumb/hydraulic-thumb-for-excavator">TH - hydraulic thumb for excavator</a></td><td>TH-30</td><td></td><td>800</td><td>620</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/asphalt-cutters/ac-excavator-asphalt-cutters">AC - excavator asphalt cutters</a></td><td>AC-30</td><td></td><td></td><td>165</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/mr-heavy-duty-multi-ripper">MR - heavy duty excavator multi-ripper</a></td><td>MR-32</td><td></td><td>1,300</td><td>994</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/duorip-double-ripper-for-root-extraction">DuoRIP - double ripper for root extraction</a></td><td>Duo-Ripper-30</td><td></td><td>500</td><td>565</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/grading-beams/grb-excavator-grading-beam">GRB - excavator grading beam</a></td><td>GRB maxi · 6 variants</td><td></td><td>2,500–3,000</td><td>357–680</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/s-system/s-system-scandinavian-quick-coupler">QC-S - S-System Scandinavian quick-coupler</a></td><td>QC-S70, QC-U-S70</td><td></td><td></td><td>270</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/cw-system/cw-system-quick-coupler">CW - CW-System compatible quick-coupler</a></td><td>CW-40, CW-40 S, CW-45, CW-45 S, CW-U-40, CW-U-40 S, CW-U-45, CW-U-45 S</td><td></td><td></td><td>230–1,146</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/ms-system/ms-system-quick-coupler">QC-HS / QC-MS - MS-System compatible quick-coupler</a></td><td>QC-HS-25</td><td></td><td></td><td>310</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/pin-grabber/pin-grabber-quick-coupler">QC-PG - pin-grabber quick-coupler for factory brackets</a></td><td>QC-PG-90, QC-ML-M-70, QC-U-PG-90</td><td></td><td></td><td>167–440</td></tr>
</tbody>
</table>
<p>Figures from <a href="https://sieruta.com/en/fit/case/case-cx300e">https://sieruta.com/en/fit/case/case-cx300e</a>, as of 2026-09-10.</p>

CASE CX300Photo: SK9200, CC BY-SA 4.0, via Wikimedia Commons

Sizes are matched to the published operating weight of the CX300E.

Weight Class: Large Excavator (12–30 t)
Operating Weight: 29,600 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 CASE, retrieved 2026-09-10. Source

Start here

The attachments buyers in your market ask for first, sized for the CX300E.

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.

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 CX300E.

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Bucket line

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Machine, line and sizes

CASE CX300E: DBF - flat-top digging bucket for quick coupler (DBF-300)

CX300E at a glance

Figure	Value	Source
Max dig depth	7,580 mm	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Max reach	10,980 mm	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Max dump height	7,390 mm	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Arm length	2,650–3,660 mm	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Main pump flow	512 l/min	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Bucket capacity	0.51–1.72 m³	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Bucket width	600–1,600 mm	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Lift capacity	13,750 kg	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)
Transport width	3,200 mm	maker's document (cnhi-p-001-delivery.sitecorecontenthub.cloud)

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

What the CX300E figures mean for its attachments

The main pump delivers up to 512 l/min at 343 bar. That is the pump output of the whole machine, not the flow an attachment gets.
It digs down to 7,580 mm. That is the deepest trench it can open.
Its maximum reach is 10,980 mm.
It dumps at up to 7,390 mm, so a truck or skip side has to sit below that height.
CASE offers arms from 2,650 to 3,660 mm. A longer arm reaches further, a shorter one handles a heavier bucket.
CASE lists buckets from 600 to 1,600 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); SDB - heavy duty skeleton DB bucket (SDB-300); DBF - flat-top digging bucket for quick coupler (DBF-300); RDBF - flat-top skeleton DBF bucket on rods (RDBF-300); DSX - Nordic heavy duty digging bucket (DS-HD-300)
CASE lists bucket capacities from 0.51 to 1.72 m³.
CASE gives a lifting capacity of 13,750 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
For transport it measures 10,610 x 3,200 x 3,330 mm (length, width, height).
Engine power is 193.4 kW.

Figures as published by CASE in its own documents.

How the CX300E compares with its neighbours

The nearest models by weight, with the difference to the CX300E in parentheses where both makers publish the figure.

Model	Operating weight	Max dig depth	Main pump flow
CX300E	29.6 t	7,580 mm	512 l/min
CASE CX250E LR	29 t (-0.6 t)	14,560 mm (+6,980)	468 l/min (-44)
CASE CX245DSR	26 t (-3.6 t)	6,650 mm (-930)	422 l/min (-90)
Komatsu PC290LC/NLC-8	29.6 t	7,220 mm (-360)	450 l/min (-62)

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

CX300E: build years and variants

Build years: 2022–2026

Variants

CX300E (2022–2026)

Years and variants as listed in the LECTURA Specs database.

CX300E: what the brochure names

Features CASE names in its own brochure for the CX300E. Some of them may be optional, so check the machine's spec before you order.

An engine that meets EU Stage V.
Operator protection certified to ROPS and FOPS.
A long arm.
Work modes you select from the cab.

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

Questions about the CX300E

What bucket width fits the CX300E?: CASE lists buckets from 600 to 1,600 mm wide for it. Pick a width in that range from the sizes above.

Buckets Tools Quick couplers

CASE CX300E: machine data

Operating weight: 29,600 kg
Engine power: 193.4 kW
Maximum digging depth: 7,580 mm
Maximum dump height: 7,390 mm

As published by CASE, retrieved 2026-09-18. Source

Before you order: check the interface

The weight class of the CASE CX300E 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 CASE CX300E at its weight are built with these brackets. Each code opens the models that list it.

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

What these terms mean:

How to choose an attachment for the job:

Other CASE models of a similar weight

Other makes of a similar weight

Operating weight within 2 t of the CASE CX300E.

Other CASE models with the same coupler brackets

Our model tables give these machines the same quick coupler brackets.

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 CASE CX300E.

Get a price Custom Engineering

Do you sell CASE 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.