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Operating-weight guide

Attachments for the Develon DX380LC-7K weight range

Bucket line
DB - heavy duty digging bucket1,400–1,500 mm wide
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  • If a bracket we made is wrong and does not fit your machine, we replace it.

How is the attachment mounted on this machine?

Tell us what is on the machine now. It narrows the sizes we show and goes with your enquiry. It does not confirm fit: we check the bracket before we send the quote.

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Catalogue sizes for the DX380LC-7K

Each size below has a catalogue row rated for a carrier of 40,200 kg operating weight. Tell us which sizes you want and we reply with an offer.

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

The attachments buyers in your market ask for first, sized for the DX380LC-7K.

On a narrow screen the table scrolls sideways.

Buckets

AttachmentSizesHeaped capacity ISO 7451 [dm³]Width [mm]Weight [kg]

Digging & sorting buckets

DB - heavy duty digging bucketDB-500 · 2 width variants1,988–2,1761,400–1,5001,515–1,593
SDB - heavy duty skeleton DB bucketSDB-500 · 2 width variants2,622–3,0001,800–2,0001,995–2,172
DBF - flat-top digging bucket for quick couplerStart herePrice & lead timeGet price & lead timeDBF-500 · 3 width variants1,897–2,2411,400–1,6001,470–1,617
RDBF - flat-top skeleton DBF bucket on rodsRDBF-500 · 3 width variants2,241–2,9991,600–2,0001,511–1,755

Tools

AttachmentSizesHeaped capacity ISO 7451 [dm³]Width [mm]Weight [kg]

Non-bucket attachments

RIP - heavy duty ripperRipper-H684

Quick couplers

AttachmentSizesHeaped capacity ISO 7451 [dm³]Width [mm]Weight [kg]
QC-S - S-System Scandinavian quick-couplerStart herePrice & lead timeGet price & lead timeS-System (Scandinavian)QC-S90750
CW - CW-System compatible quick-couplerCW-SystemCW-45, CW-45 S, CW-55, CW-U-45, CW-U-45 S435–1,146
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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 attachment. See the certificates.

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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
Drawing of a bracket with the pin diameter (1), the pin centre distance (2) and the ear width (3) marked

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.

Before you order: check the interface

The weight class of the Develon DX380LC-7K 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.

Heavy excavators dig rock, load trucks and work in quarries, so wear decides the bucket as much as capacity does. Rock and reinforced buckets carry thicker wear steel, teeth and side cutters, and the bucket is sized to the trucks it loads and to the density of the material.DBS - engineered rock bucket for excavator

Quick coupler brackets at this weight

In our model tables, the attachments listed for the Develon DX380LC-7K 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:

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 DX380LC-7K.

Machine

Develon DX380LC-7K

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Machine, line and sizes

Develon DX380LC-7K: DBF - flat-top digging bucket for quick coupler (DBF-500)

Sizes are matched to the published operating weight of the DX380LC-7K.

Weight Class
Heavy Excavator (30–65 t)
Operating Weight
40,200 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 Develon, retrieved 2026-09-10. Source

We have no openly licensed photo of this machine. The drawing shows the type (excavator, Heavy 30–65 t), not this machine.

Develon DX380LC-7K: machine data

Operating weight
40,200 kg
Engine power
240 kW
Maximum digging depth
8,165 mm
Maximum dump height
7,755 mm
Tail swing radius
3,530 mm
Quick coupler
Universal Pin-on Quick Coupler
Max reach
11,715 mmmaker's document (eu.develon-ce.com)
Arm length
2,600–3,950 mmmaker's document (eu.develon-ce.com)
Main pump flow
700 l/minmaker's document (eu.develon-ce.com)
Bucket capacity
0.65–2.32 m³maker's document (eu.develon-ce.com)
Bucket width
600–1,892 mmmaker's document (eu.develon-ce.com)
Lift capacity
22,530 kgmaker's document (eu.develon-ce.com)
Transport width
3,350 mmmaker's document (eu.develon-ce.com)

As published by Develon, retrieved 2026-09-17. Source

What the DX380LC-7K figures mean for its attachments

  • The main pump delivers up to 700 l/min at 380 bar. That is the pump output of the whole machine, not the flow an attachment gets.
  • Develon lists this quick coupler for it: Universal Pin-on Quick Coupler. The bracket on every attachment has to match the coupler.
  • It digs down to 8,165 mm. That is the deepest trench it can open.
  • Its maximum reach is 11,715 mm.
  • It dumps at up to 7,755 mm, so a truck or skip side has to sit below that height.
  • Develon offers arms from 2,600 to 3,950 mm. A longer arm reaches further, a shorter one handles a heavier bucket.
  • Develon lists buckets from 600 to 1,892 mm wide for this machine.Our sizes in that range: DB - heavy duty digging bucket (DB-500); SDB - heavy duty skeleton DB bucket (SDB-500); DBF - flat-top digging bucket for quick coupler (DBF-500); RDBF - flat-top skeleton DBF bucket on rods (RDBF-500)
  • Develon lists bucket capacities from 0.65 to 2.32 m³.
  • Develon gives a lifting capacity of 22,530 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
  • Its tail swing radius is 3,530 mm, which matters beside a wall or in a live traffic lane.
  • For transport it measures 11,285 x 3,350 x 3,415 mm (length, width, height).
  • Engine power is 240 kW.

Figures as published by Develon in its own documents.

How the DX380LC-7K compares with its neighbours

The nearest models by weight, with the difference to the DX380LC-7K in parentheses where both makers publish the figure.

ModelOperating weightMax dig depthMain pump flow
DX380LC-7K40.2 t8,165 mm700 l/min
Develon DX400HD-941.7 t (+1.5 t)8,160 mm (-5)720 l/min (+20)
Develon DX360LC-937.2 t (-3 t)8,270 mm (+105)720 l/min (+20)
Sany SY390H40.15 t (-0.05 t)7,473 mm (-692)704 l/min (+4)

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

DX380LC-7K: what the brochure names

Features Develon names in its own brochure for the DX380LC-7K. Some of them may be optional, so check the machine's spec before you order.

  • An engine that meets EU Stage V.
  • Work modes you select from the cab.
  • Operator protection certified to ROPS and FOPS.
  • Automatic engine idle when the controls are left alone.

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

Other Develon 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 Develon DX380LC-7K.

Questions about the DX380LC-7K

What bucket width fits the DX380LC-7K?
Develon lists buckets from 600 to 1,892 mm wide for it. Pick a width in that range.
Which quick coupler is installed on your DX380LC-7K?
Develon lists this coupler for it: Universal Pin-on Quick Coupler. Order attachments with the matching bracket.
For publishers: cite or embed this table

Cite this table as https://sieruta.com/en/fit/develon/develon-dx380lc-7k, figures as of 2026-09-10.

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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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