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Operating-weight guide

Attachments for the Komatsu PC190LC/NLC-8 weight range

Bucket line
DB - heavy duty digging bucket600–1500 mm wide
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Catalogue sizes for the PC190LC/NLC-8

Each size below has a catalogue row rated for a carrier of 18,500 – 20,000 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-190 · 5 width variants, DB-230 · 6 width variants374–1,335 SAE600–1,500350–787
SDB - heavy duty skeleton DB bucketSDB-230 · 2 width variants1,183–1,290 SAE1,400–1,500833–880
DBF - flat-top digging bucket for quick couplerDBF-190 · 5 width variants, DBF-230 · 6 width variants376–1,308 SAE600–1,500346–789
RDBF - flat-top skeleton DBF bucket on rodsRDBF-190 · 3 width variants, RDBF-230 · 3 width variants911–1,308 SAE1,200–1,500563–730
DSX - Nordic heavy duty digging bucketDS-HD-190 · 3 width variants, DS-HD-250 · 3 width variants570–1,070 SAE800–1,200505–847
GD - rigid grading & ditching bucket, 12–40 tGD-190 · 3 width variants, GD-230 · 3 width variants544–819 SAE1,600–2,000325–441
GDH - heavy duty hydraulic grading & ditching bucketGDH-190 · 3 width variants, GDH-230 · 3 width variants530–867 SAE1,600–2,000572–700
SB - Dutch profile grading & ditching bucketSB-190 · 4 width variants, SB-230 · 4 width variants731–1,176 SAE1,600–2,200394–622
DCB - grading & ditching bucket with round profileDCB-190 · 3 width variants, DCB-230 · 3 width variants535–779 SAE1,600–2,000298–384
PS - Scandinavian universal / grading bucketPS-190 · 4 width variants, PS-230 · 4 width variants937–1,570 SAE1,800–2,200560–834
PSH - hydraulic swivelling grading bucketPS-190 · 4 width variants, PS-230 · 4 width variants1,800–2,200
CB - heavy duty hydraulic clamp bucketCBR-190, CBR-260803–1,0711,200631–1,100
TH - hydraulic thumb for excavatorTH-19, TH-26700–780340–520
AC - excavator asphalt cuttersAC-30165
MR - heavy duty excavator multi-ripperMR-221,300546
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-S60, QC-S70, QC-U-S60, QC-U-S70115–270
CW - CW-System compatible quick-couplerCW-30, CW-30 S, CW-40, CW-40 S, CW-U-30, CW-U-30 S, CW-U-40, CW-U-40 S220–240
QC-HS / QC-MS - MS-System compatible quick-couplerQC-HS-10, QC-HS-21, QC-MS-10, QC-MS-21, QC-U-HS-10, QC-U-HS-21200–310
QC-PG - pin-grabber quick-coupler for factory bracketsQC-PG-80, QC-ML-M-60, QC-ML-M-65, QC-ML-M-70, QC-U-PG-80105–400
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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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Sizes are matched to the published operating weight of the PC190LC/NLC-8.

Weight Class
Large Excavator (12–30 t)
Operating Weight
18,500 – 20,000 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 Komatsu, retrieved 2026-09-10. Source

No open-licence photo of this machine exists. The drawing shows the type (excavator, Large 12–30 t), not this machine.

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 PC190LC/NLC-8.

Machine

Komatsu PC190LC/NLC-8

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Machine, line and sizes

Komatsu PC190LC/NLC-8: DBF - flat-top digging bucket for quick coupler (DBF-190, DBF-230)

PC190LC/NLC-8 at a glance

FigureValueSource
Max dig depth6,280 mmmaker's website (komatsu.eu)
Max reach9,295 mmmaker's document (komatsu.eu)
Max dump height7,100 mmmaker's document (komatsu.eu)
Arm length2,250–2,900 mmmaker's document (komatsu.eu)
Main pump flow312 l/minmaker's document (komatsu.eu)
Bucket capacity1.14 m³maker's document (komatsu.eu)
Lift capacity3,400 kgmaker's document (komatsu.eu)
Transport width2,800 mmmaker's document (komatsu.eu)

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

What the PC190LC/NLC-8 figures mean for its attachments

  • The main pump delivers up to 312 l/min at 380 bar. That is the pump output of the whole machine, not the flow an attachment gets.
  • It digs down to 6,280 mm. That is the deepest trench it can open.
  • Its maximum reach is 9,295 mm.
  • It dumps at up to 7,100 mm, so a truck or skip side has to sit below that height.
  • Komatsu offers arms from 2,250 to 2,900 mm. A longer arm reaches further, a shorter one handles a heavier bucket.
  • Komatsu lists a bucket capacity of 1.14 m³.
  • Komatsu gives a lifting capacity of 3,400 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
  • For transport it measures 8,770 x 2,800 x 3,090 mm (length, width, height).
  • Engine power is 97 kW.

Figures as published by Komatsu in its own documents.

How the PC190LC/NLC-8 compares with its neighbours

The nearest models by weight, with the difference to the PC190LC/NLC-8 in parentheses where both makers publish the figure.

ModelOperating weightMax dig depthMain pump flow
PC190LC/NLC-818.5 t6,280 mm312 l/min
Komatsu PC180LC/NLC-718.4 t (-0.1 t)6,250 mm (-30)312 l/min
Komatsu PC170LC-1118.3 t (-0.2 t)6,250 mm (-30)298 l/min (-14)
Atlas 1404ZW18.5 t5,900 mm (-380)245 l/min (-67)

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

PC190LC/NLC-8: what the brochure names

Features Komatsu names in its own brochure for the PC190LC/NLC-8. Some of them may be optional, so check the machine's spec before you order.

  • Work modes you select from the cab.
  • A load-sensing hydraulic system.
  • Proportional control of the auxiliary hydraulics, for tilt buckets, augers and breakers.
  • A rear or side view camera.

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

Questions about the PC190LC/NLC-8

What bucket size fits the PC190LC/NLC-8?
Komatsu lists a bucket capacity of 1.14 m³ for it.

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

Digging & sorting buckets

Ditching, grading, sloping buckets

Komatsu PC190LC/NLC-8: machine data

Operating weight
18,500 – 20,000 kg
Engine power
97 kW
Maximum digging depth
6,280 mm
Maximum dump height
7,100 mm

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

Before you order: check the interface

The weight class of the Komatsu PC190LC/NLC-8 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 Komatsu PC190LC/NLC-8 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:

Other makes of a similar weight

Operating weight within 2 t of the Komatsu PC190LC/NLC-8.

Other Komatsu 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 Komatsu PC190LC/NLC-8.

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 Komatsu 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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