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Operating-weight guide

Attachments for the Hidromek HMK 390 LC LR weight range

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  • Every offer names the dispatch week
  • 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 HMK 390 LC LR

Each size below has a catalogue row rated for a carrier of 42,100 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 HMK 390 LC LR.

On a narrow screen the table scrolls sideways.

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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Special machine configuration (Long reach). Engineering review is required before you select an attachment. Buckets are shown only up to the maker's maximum bucket width and capacity for this front. The other families are matched by operating weight only.

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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 Hidromek HMK 390 LC LR 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 Hidromek HMK 390 LC LR 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:

Sizes are matched to the published operating weight of the HMK 390 LC LR.

Weight Class
Heavy Excavator (30–65 t)
Operating Weight
42,100 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 Hidromek, retrieved 2026-09-12. Source

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

Hidromek HMK 390 LC LR: machine data

Operating weight
42,100 kg
Engine power
210 kW
Maximum digging depth
11,870 mm
Maximum dump height
12,680 mm
Max reach
16,870 mmmaker's document (hidromek.com)
Arm length
6,000 mmmaker's document (hidromek.com)
Main pump flow
600 l/minmaker's document (hidromek.com)
Bucket capacity
1 m³maker's document (hidromek.com)
Lift capacity
7,150 kgmaker's document (hidromek.com)
Transport width
3,500 mmmaker's document (hidromek.com)

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

What the HMK 390 LC LR figures mean for its attachments

  • The main pump delivers up to 600 l/min at 343 bar. That is the pump output of the whole machine, not the flow an attachment gets.
  • It digs down to 11,870 mm. That is the deepest trench it can open.
  • Its maximum reach is 16,870 mm.
  • It dumps at up to 12,680 mm, so a truck or skip side has to sit below that height.
  • Its arm is 6,000 mm long.
  • Hidromek lists a bucket capacity of 1 m³.
  • Hidromek gives a lifting capacity of 7,150 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
  • For transport it measures 14,840 x 3,500 x 3,370 mm (length, width, height).
  • Engine power is 210 kW.

Figures as published by Hidromek in its own documents.

How the HMK 390 LC LR compares with its neighbours

The nearest models by weight, with the difference to the HMK 390 LC LR in parentheses where both makers publish the figure.

ModelOperating weightMax dig depthMain pump flow
HMK 390 LC LR42.1 t11,870 mm600 l/min
Hidromek HMK 410 LC UHD42.2 t (+0.1 t)6,530 mm (-5,340)600 l/min
Hidromek HMK 390 LC HD40.4 t (-1.7 t)6,560 mm (-5,310)600 l/min
Hitachi ZX330LC-5G CTA 25m42.05 t (-0.05 t)not published558 l/min (-42)

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

HMK 390 LC LR: build years and variants

Build years: 2021–2026

Variants

  • HMK 390 LC LR (2021–2026)

Years and variants as listed in the LECTURA Specs database.

HMK 390 LC LR: what the brochure names

Features Hidromek names in its own brochure for the HMK 390 LC LR. 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 rear or side view camera.
  • Proportional control of the auxiliary hydraulics, for tilt buckets, augers and breakers.

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

Other makes of a similar weight

Operating weight within 2 t of the Hidromek HMK 390 LC LR.

Other Hidromek 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 Hidromek HMK 390 LC LR.

Questions about the HMK 390 LC LR

What bucket size fits the HMK 390 LC LR?
Hidromek lists a bucket capacity of 1 m³ for it.
For publishers: cite or embed this table

Cite this table as https://sieruta.com/en/fit/hidromek/hidromek-hmk-390-lc-lr, figures as of 2026-09-12.

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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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