Attachments for the Hitachi ZX390TC-7 weight range
Weight Class: Heavy Excavator (30–65 t) Operating Weight: 38,500 – 39,200 kg
- Bucket line
- DB - heavy duty digging bucket 1,000–1,800 mm wide
- We usually reply within 1 working day
- We check the fit before we send the quote
- 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.
Ask for a price with this answer
The short version for the ZX390TC-7
Families to look at first
- DBF - flat-top digging bucket for quick coupler 1,000–1,800 mm
- GD - rigid grading & ditching bucket, 12–40 t 2,000–2,600 mm
- GDH - heavy duty hydraulic grading & ditching bucket 2,000–2,600 mm
Quick coupler brackets at this weight
- S80
- MS25
- CW45
- OQ80
- SW48
- SW66
Brackets we build attachments with in this weight range. Not a confirmed fit.
Still to check
Pin diameter, pin spacing, inside width between the stick ears, and any quick coupler on the machine.
Catalogue sizes for the ZX390TC-7
Each size below has a catalogue row rated for a carrier of 38,500 – 39,200 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 ZX390TC-7.
On a narrow screen the table scrolls sideways.
Buckets
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
Digging & sorting buckets | ||||
| DB - heavy duty digging bucket | DB-400 · 6 width variants | 1,082–2,288 | 1,000–1,800 | 957–1,480 |
| SDB - heavy duty skeleton DB bucket | SDB-400 · 2 width variants | 1,917–2,224 | 1,600–1,800 | 1,411–1,550 |
| DBF - flat-top digging bucket for quick coupler Start here Price & lead time Get price & lead time | DBF-400 · 6 width variants | 1,024–2,179 | 1,000–1,800 | 854–1,312 |
| RDBF - flat-top skeleton DBF bucket on rods | RDBF-400 · 3 width variants | 1,727–2,179 | 1,500–1,800 | 1,067–1,213 |
| DSX - Nordic heavy duty digging bucket | DS-HD-400 · 3 width variants | 921–1,462 | 1,000–1,400 | 952–1,214 |
Ditching, grading, sloping buckets | ||||
| GD - rigid grading & ditching bucket, 12–40 t Start here Price & lead time Get price & lead time | GD-400 · 3 width variants | 1,395–1,851 | 2,000–2,600 | 856–1,055 |
| GDH - heavy duty hydraulic grading & ditching bucket Start here Price & lead time Get price & lead time | GDH-400 · 3 width variants | 1,336–1,780 | 2,000–2,600 | 1,218–1,415 |
| SB - Dutch profile grading & ditching bucket | SB-400 · 4 width variants | 1,739–2,242 | 2,000–2,500 | 889–1,065 |
| DCB - grading & ditching bucket with round profile | DCB-400 · 3 width variants | 1,307–1,735 | 2,000–2,600 | 721–893 |
Tools
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
Non-bucket attachments | ||||
| RIP - heavy duty ripper | Ripper-E | 490 | ||
Quick couplers
Coupler sizes within this machine's published weight range. Not a confirmed fit.
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
| CW - CW-System compatible quick-coupler Start here Price & lead time Get price & lead time CW-System | CW-45, CW-45 S, CW-55, CW-U-45, CW-U-45 S | 435–1,146 | ||
| QC-HS / QC-MS - MS-System compatible quick-coupler MS system | QC-HS-25 | 310 | ||
| QC-PG - pin-grabber quick-coupler for factory brackets Pin-grabber | QC-PG-100, QC-U-PG-100 | 740–1,435 |
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 quick coupler and hydraulic attachment. See the certificates.
Message us on WhatsApp Photos and voice notes are welcome.Special machine configuration (Demolition). Engineering review is required before you select an attachment. Any families shown here are matched by operating weight only.
Price & lead time Get price & lead timeBefore you order: check the interface
The weight class of the Hitachi ZX390TC-7 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 Hitachi ZX390TC-7 at its weight are built with these brackets. Each code opens the models that list it.
Brackets we build attachments with in this weight range. Not a confirmed fit.
- 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:
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 ZX390TC-7.
Send this answer to a colleague or dealer
Hitachi ZX390TC-7: DBF - flat-top digging bucket for quick coupler (DBF-400). Shortlisted by operating weight
Sizes are matched to the published operating weight of the ZX390TC-7.
- Weight Class
- Heavy Excavator (30–65 t)
- Operating Weight
- 38,500 – 39,200 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 Hitachi, retrieved 2026-09-10. Source
Hitachi ZX390TC-7: machine data
- Operating weight
- 38,500 – 39,200 kg
- Engine power
- 210 kW
- Maximum digging depth
- 7,380 mm
- Quick coupler
- quick coupler OQ80
- Arm length
- 3,200 mm maker's document (hitachicm.com)
- Main pump flow
- 576 l/min maker's document (hitachicm.com)
- Bucket capacity
- 2.5 m³ maker's document (hitachicm.com)
- Lift capacity
- 15,300 kg maker's document (hitachicm.com)
As published by Hitachi, retrieved 2026-09-19. Source
What the ZX390TC-7 figures mean for its attachments
- The main pump delivers up to 576 l/min at 343 bar. That is the pump output of the whole machine, not the flow an attachment gets.
- Hitachi lists this quick coupler for it: quick coupler OQ80. The bracket on every attachment has to match the coupler.
Coupler sizes within this machine's published weight range. Not a confirmed fit.
The attachments we build with OQ80 brackets - It digs down to 7,380 mm. That is the deepest trench it can open.
- Its arm is 3,200 mm long.
- Hitachi lists a bucket capacity of 2.5 m³.
- Hitachi gives a lifting capacity of 15,300 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
- Engine power is 210 kW.
Figures as published by Hitachi in its own documents.
How the ZX390TC-7 compares with its neighbours
The nearest models by weight, with the difference to the ZX390TC-7 in parentheses where both makers publish the figure.
| Model | Operating weight | Max dig depth | Main pump flow |
|---|---|---|---|
| ZX390TC-7 | 38.5 t | 7,380 mm | 576 l/min |
| Hitachi ZX375US-7 | 35.6 t (-2.9 t) | 6,920 mm (-460) | 472 l/min (-104) |
| Hitachi ZX350LC-7 / ZX350LCN-7 | 35.2 t (-3.3 t) | 7,380 mm | 576 l/min |
| Hidromek HMK 360 LC | 38.7 t (+0.2 t) | 7,630 mm (+250) | 580 l/min (+4) |
Figures as each maker publishes them. A difference is shown only where both machines have a published value.
ZX390TC-7: what the brochure names
Features Hitachi names in its own brochure for the ZX390TC-7. Some of them may be optional, so check the machine's spec before you order.
- An engine that meets EU Stage V.
- A two-piece boom.
- Telematics for tracking the machine remotely (ConSite).
From Hitachi's published brochure. We keep the source document on file.
Other makes of a similar weight
Operating weight within 2 t of the Hitachi ZX390TC-7.
Other Hitachi 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 Hitachi ZX390TC-7.
Questions about the ZX390TC-7
- What bucket size fits the ZX390TC-7?
- Hitachi lists a bucket capacity of 2.5 m³ for it.
- Which quick coupler is installed on your ZX390TC-7?
- Hitachi lists this coupler for it: quick coupler OQ80. Order attachments with the matching bracket.
For publishers: cite or embed this table
Cite this table as https://sieruta.com/en/fit/hitachi/hitachi-zx390tc-7, 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.