Attachments for the JCB 520X weight range
Price & lead timeGet price & lead time- 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.
Catalogue sizes for the 520X
Each size below has a catalogue row rated for a carrier of 52,000 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 520X.
On a narrow screen the table scrolls sideways.
Tools
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
Non-bucket attachments | ||||
| RIP - heavy duty ripper | Ripper-H | 684 | ||
Quick couplers
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
| QC-S - S-System Scandinavian quick-couplerStart herePrice & lead timeGet price & lead timeS-System (Scandinavian) | QC-S90 | 750 | ||
| CW - CW-System compatible quick-couplerCW-System | CW-55 | 660 |
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.
Message us on WhatsAppPhotos and voice notes are welcome.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.
Before you order: check the interface
The weight class of the JCB 520X 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 JCB 520X 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:
Sizes are matched to the published operating weight of the 520X.
- Weight Class
- Heavy Excavator (30–65 t)
- Operating Weight
- 52,000 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 JCB, retrieved 2026-09-10. Source
JCB 520X: machine data
- Operating weight
- 52,000 kg
- Engine power
- 298 kW
- Maximum digging depth
- 7,800 mm
- Maximum dump height
- 7,687 mm
- Bucket breakout force
- 318.3 kN
- Arm crowd force
- 278.8 kN
- Quick coupler
- Quick coupler
- Max reach
- 12,121 mmmaker's document via unitrack.gr
- Arm length
- 2,550–3,900 mmmaker's document via unitrack.gr
- Main pump flow
- 808 l/minmaker's document via unitrack.gr
- Transport width
- 3,340 mmmaker's document via unitrack.gr
As published by JCB, retrieved 2026-09-18. Source
What the 520X figures mean for its attachments
- The main pump delivers up to 808 l/min at 343 bar. That is the pump output of the whole machine, not the flow an attachment gets.
- JCB lists this quick coupler for it: Quick Coupler. The bracket on every attachment has to match the coupler.
- It digs down to 7,800 mm. That is the deepest trench it can open.
- Its maximum reach is 12,121 mm.
- It dumps at up to 7,687 mm, so a truck or skip side has to sit below that height.
- JCB offers arms from 2,550 to 3,900 mm. A longer arm reaches further, a shorter one handles a heavier bucket.
- Bucket breakout force is 318.3 kN and arm crowd force 278.8 kN. That is the force a bucket or ripper works with at the tooth.
- Its transport width is 3,340 mm.
- Engine power is 298 kW.
Figures as published by JCB in its own documents.
How the 520X compares with its neighbours
The nearest models by weight, with the difference to the 520X in parentheses where both makers publish the figure.
| Model | Operating weight | Max dig depth | Main pump flow |
|---|---|---|---|
| 520X | 52 t | 7,800 mm | 808 l/min |
| JCB 420X | 42.39 t (-9.61 t) | 7,600 mm (-200) | 622 l/min (-186) |
| JCB 370X | 39.888 t (-12.112 t) | 8,360 mm (+560) | 604 l/min (-204) |
| Hidromek HMK 500 LC HD | 52 t | 6,480 mm (-1,320) | 732 l/min (-76) |
Figures as each maker publishes them. A difference is shown only where both machines have a published value.
Other JCB models of a similar weight
Other makes of a similar weight
Operating weight within 2 t of the JCB 520X.
Other JCB 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 JCB 520X.
Questions about the 520X
- Which quick coupler is installed on your 520X?
- JCB lists this coupler for it: Quick Coupler. Order attachments with the matching bracket.
For publishers: cite or embed this table
Cite this table as https://sieruta.com/en/fit/jcb/jcb-520x, figures as of 2026-09-10.
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Do you sell JCB 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.