Operating-weight guide

Attachments for the Hyundai R18-9AK weight range

Bucket line: GP - general purpose digging bucket300–600 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.

Catalogue sizes for the R18-9AK

Each size below has a catalogue row rated for a carrier of 1,855 – 1,995 kg operating weight. Tell us which sizes you want and we reply with an offer.

On a narrow screen the table scrolls sideways.

Attachment	Sizes	Capacity [dm³]	Width [mm]	Weight [kg]
GP - general purpose digging bucket	GP-30 · 4 width variants	36–88 SAE	300–600	33–55
GB - rigid grading & ditching bucket, German profile	GB-30 · 2 width variants	93–114 SAE	1,000–1,200	70–82
GBH - hydraulic tilt ditching bucket for mini-excavator	GBH-30 · 2 width variants	93–114 SAE	1,000–1,200	101–113
RGP - skeleton rod GP bucket	RGP-30 · 2 width variants	87–123 SAE	600–800	58–73
SGP - heavy duty skeleton GP bucket	SGP-30 · 2 width variants	64–81 SAE	600–800	64–80
GPO - GP bucket with perforated bottom	GPO-30 · 2 width variants	64–81 SAE	600–800	52–64
GPL - general purpose digging bucket	GPL-30 · 4 width variants	33–79 SAE	300–600	26–43
GBP - rigid grading & ditching bucket, Italian profile	GBP-30 · 2 width variants	129–158 SAE	1,000–1,200	72–85
GBPH - hydraulic tilting grading & ditching bucket	GBPH-30 · 3 width variants	88–121 SAE	900–1,200	88–103
RGPL - skeleton rod GPL bucket	RGPL-30 · 2 width variants	79–110 SAE	600–800	44–55
GPLO - GPL bucket with perforated bottom	GPLO-30 · 2 width variants	79–110 SAE	600–800	43–55
SGPL - heavy duty skeleton GPL bucket for mini-excavator	SGPL-30 · 2 width variants	79–110 SAE	600–800	48–62
BDP mini - clay digging bucket for mini-excavator	BDP-30	16 SAE	250	30
SB mini - Dutch profile grading & ditching bucket for mini-excavator	SB-30 · 4 width variants	97–131 SAE	900–1,200	65–85
PDP mini - skeleton BDP stone bucket	PDP-30 · 3 width variants	93–130 SAE	600–800	53–66
DS mini - Scandinavian deep digging bucket for mini-excavator	DS-30 · 3 width variants	66–114 SAE	400–600	44–60
PS mini - Scandinavian universal grading bucket for mini-excavator	PS-25 · 3 width variants	112–140 SAE	1,000–1,200	64–77
PSH mini - hydraulic swivelling grading bucket for mini-excavators	PS-25 · 3 width variants		1,000–1,200
KS mini - cable bucket for mini-excavator	KS-20 · 3 width variants	19–50 SAE	200–400	20–34
KSV mini - Scandinavian profile cable V bucket for mini-excavator	KSV-20 · 3 width variants	17–57 SAE	100–300	23–40
CB mini - hydraulic clamp bucket for mini-excavator	CBR-30	83 SAE	600	80
GKB mini - deep cable digging bucket for mini-excavator	GKB-30		150	37
RGPR - skeleton rod bucket	RGPR-30	109 SAE	800	63
RGB - skeleton rod grading & sorting bucket	RGB-30	118 SAE	1,200	77
LR mini - straight land rakes for mini-excavator	LR-3 · 2 width variants		1,000–1,200	85–100
LRS - short land rakes for mini-excavators	LRS-3		925	70
RIP mini - ripper shank for mini-excavator	Ripper-2.5			21
MR mini - multi-ripper for mini-excavator	MRF 25		400	36
GRB light - mini-excavator grading beam with lowered mass	GRB-MIKRO · 3 width variants, GRBH-MIKRO · 3 width variants		1,500–2,000	86–141
RC - root cutter	Root cutter-2		170	13
RRB - root rake bucket profile	RRB-20		900	80
QC-S - S-System Scandinavian quick-coupler	QC-S30-H/150, QC-S30-H/180, QC-S30-SA/150, QC-S30-SA/180, QC-U-S30-H/150, QC-U-S30-H/180			15–42
CW - CW-System compatible quick-coupler	CW-05, CW-U-05			25–67
QC-HS / QC-MS - MS-System compatible quick-coupler	QC-HS-01, QC-MS-01, QC-U-HS-01			20–46
QC-PG - pin-grabber quick-coupler for factory brackets	QC-ML-M-30			14

Get a price

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.

Message us on WhatsAppPhotos and voice notes are welcome.

For publishers: cite or embed this table

Cite this table as https://sieruta.com/en/fit/hyundai/hyundai-r18-9ak, figures as of 2026-09-10.

Embed this table on your site

Copy the HTML below into your page. It keeps the link back to this page and the date of the figures.

<table>
<caption>Families that fit the Hyundai R18-9AK, with their own figures</caption>
<thead><tr><th scope="col">Attachment</th><th scope="col">Sizes</th><th scope="col">Capacity [dm³]</th><th scope="col">Width [mm]</th><th scope="col">Weight [kg]</th></tr></thead>
<tbody>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/gp-general-purpose-digging-bucket">GP - general purpose digging bucket</a></td><td>GP-30 · 4 width variants</td><td>36–88 SAE</td><td>300–600</td><td>33–55</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/gb-rigid-grading-ditching-bucket">GB - rigid grading &amp; ditching bucket, German profile</a></td><td>GB-30 · 2 width variants</td><td>93–114 SAE</td><td>1,000–1,200</td><td>70–82</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/gbh-universal-hydraulic-tilting-ditching-bucket-for-mini-excavator">GBH - hydraulic tilt ditching bucket for mini-excavator</a></td><td>GBH-30 · 2 width variants</td><td>93–114 SAE</td><td>1,000–1,200</td><td>101–113</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/rgp-skeleton-rod-gp-bucket">RGP - skeleton rod GP bucket</a></td><td>RGP-30 · 2 width variants</td><td>87–123 SAE</td><td>600–800</td><td>58–73</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/sgp-heavy-duty-mini-excavator-skeleton-gp-bucket">SGP - heavy duty skeleton GP bucket</a></td><td>SGP-30 · 2 width variants</td><td>64–81 SAE</td><td>600–800</td><td>64–80</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/gpo-gp-bucket-with-perforated-bottom">GPO - GP bucket with perforated bottom</a></td><td>GPO-30 · 2 width variants</td><td>64–81 SAE</td><td>600–800</td><td>52–64</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/gpl-general-purpose-digging-bucket">GPL - general purpose digging bucket</a></td><td>GPL-30 · 4 width variants</td><td>33–79 SAE</td><td>300–600</td><td>26–43</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/gbp-rigid-grading-ditching-bucket">GBP - rigid grading &amp; ditching bucket, Italian profile</a></td><td>GBP-30 · 2 width variants</td><td>129–158 SAE</td><td>1,000–1,200</td><td>72–85</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/gbph-hydraulic-tilting-grading-ditching-bucket">GBPH - hydraulic tilting grading &amp; ditching bucket</a></td><td>GBPH-30 · 3 width variants</td><td>88–121 SAE</td><td>900–1,200</td><td>88–103</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/rgpl-skeleton-rod-gpl-bucket">RGPL - skeleton rod GPL bucket</a></td><td>RGPL-30 · 2 width variants</td><td>79–110 SAE</td><td>600–800</td><td>44–55</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/gplo-gpl-bucket-with-perforated-bottom">GPLO - GPL bucket with perforated bottom</a></td><td>GPLO-30 · 2 width variants</td><td>79–110 SAE</td><td>600–800</td><td>43–55</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/sgpl-heavy-duty-skeleton-gpl-bucket">SGPL - heavy duty skeleton GPL bucket for mini-excavator</a></td><td>SGPL-30 · 2 width variants</td><td>79–110 SAE</td><td>600–800</td><td>48–62</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/bdp-clay-bucket-for-mini-excavator">BDP mini - clay digging bucket for mini-excavator</a></td><td>BDP-30</td><td>16 SAE</td><td>250</td><td>30</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/sb-dutch-profile-ditch-cleaning-bucket">SB mini - Dutch profile grading &amp; ditching bucket for mini-excavator</a></td><td>SB-30 · 4 width variants</td><td>97–131 SAE</td><td>900–1,200</td><td>65–85</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/pdp-dutch-profile-skeleton-stone-bucket">PDP mini - skeleton BDP stone bucket</a></td><td>PDP-30 · 3 width variants</td><td>93–130 SAE</td><td>600–800</td><td>53–66</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/ds-scandinavian-deep-excavation-bucket-djupskopa">DS mini - Scandinavian deep digging bucket for mini-excavator</a></td><td>DS-30 · 3 width variants</td><td>66–114 SAE</td><td>400–600</td><td>44–60</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/ps-mini-scandinavian-universal-grading-bucket-for-mini-excavator">PS mini - Scandinavian universal grading bucket for mini-excavator</a></td><td>PS-25 · 3 width variants</td><td>112–140 SAE</td><td>1,000–1,200</td><td>64–77</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-grading/psh-mini-hydraulic-swivelling-grading-bucket-for-mini-excavator">PSH mini - hydraulic swivelling grading bucket for mini-excavators</a></td><td>PS-25 · 3 width variants</td><td></td><td>1,000–1,200</td><td></td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/ks-mini-cable-bucket-for-mini-excavator">KS mini - cable bucket for mini-excavator</a></td><td>KS-20 · 3 width variants</td><td>19–50 SAE</td><td>200–400</td><td>20–34</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/ksv-mini-scandinavian-profile-cable-v-bucket-for-mini-excavator">KSV mini - Scandinavian profile cable V bucket for mini-excavator</a></td><td>KSV-20 · 3 width variants</td><td>17–57 SAE</td><td>100–300</td><td>23–40</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/cb-hydraulic-clamp-bucket-for-mini-excavator">CB mini - hydraulic clamp bucket for mini-excavator</a></td><td>CBR-30</td><td>83 SAE</td><td>600</td><td>80</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-digging/gkb-mini-deep-cable-digging-bucket-for-mini-excavator">GKB mini - deep cable digging bucket for mini-excavator</a></td><td>GKB-30</td><td></td><td>150</td><td>37</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/rgpr-skeleton-rod-bucket">RGPR - skeleton rod bucket</a></td><td>RGPR-30</td><td>109 SAE</td><td>800</td><td>63</td></tr>
<tr><td><a href="https://sieruta.com/en/products/buckets/mini-excavator-skeleton/rgb-skeleton-rod-grading-sorting-bucket">RGB - skeleton rod grading &amp; sorting bucket</a></td><td>RGB-30</td><td>118 SAE</td><td>1,200</td><td>77</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/lr-mini-straight-land-rakes-for-mini-excavator">LR mini - straight land rakes for mini-excavator</a></td><td>LR-3 · 2 width variants</td><td></td><td>1,000–1,200</td><td>85–100</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/lrs-short-land-rakes-for-mini-excavators">LRS - short land rakes for mini-excavators</a></td><td>LRS-3</td><td></td><td>925</td><td>70</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/rip-mini-ripper-for-mini-excavator">RIP mini - ripper shank for mini-excavator</a></td><td>Ripper-2.5</td><td></td><td></td><td>21</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/mr-mini-multi-ripper-for-mini-excavator">MR mini - multi-ripper for mini-excavator</a></td><td>MRF 25</td><td></td><td>400</td><td>36</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/grading-beams/grb-light-mini-excavator-grading-beam-with-lowered-mass">GRB light - mini-excavator grading beam with lowered mass</a></td><td>GRB-MIKRO · 3 width variants, GRBH-MIKRO · 3 width variants</td><td></td><td>1,500–2,000</td><td>86–141</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/rc-root-cutter">RC - root cutter</a></td><td>Root cutter-2</td><td></td><td>170</td><td>13</td></tr>
<tr><td><a href="https://sieruta.com/en/products/tools/rippers-rakes/rr-root-rake-bucket-profile">RRB - root rake bucket profile</a></td><td>RRB-20</td><td></td><td>900</td><td>80</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/s-system/s-system-scandinavian-quick-coupler">QC-S - S-System Scandinavian quick-coupler</a></td><td>QC-S30-H/150, QC-S30-H/180, QC-S30-SA/150, QC-S30-SA/180, QC-U-S30-H/150, QC-U-S30-H/180</td><td></td><td></td><td>15–42</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/cw-system/cw-system-quick-coupler">CW - CW-System compatible quick-coupler</a></td><td>CW-05, CW-U-05</td><td></td><td></td><td>25–67</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/ms-system/ms-system-quick-coupler">QC-HS / QC-MS - MS-System compatible quick-coupler</a></td><td>QC-HS-01, QC-MS-01, QC-U-HS-01</td><td></td><td></td><td>20–46</td></tr>
<tr><td><a href="https://sieruta.com/en/products/quick-couplers/pin-grabber/pin-grabber-quick-coupler">QC-PG - pin-grabber quick-coupler for factory brackets</a></td><td>QC-ML-M-30</td><td></td><td></td><td>14</td></tr>
</tbody>
</table>
<p>Figures from <a href="https://sieruta.com/en/fit/hyundai/hyundai-r18-9ak">https://sieruta.com/en/fit/hyundai/hyundai-r18-9ak</a>, as of 2026-09-10.</p>

Sizes are matched to the published operating weight of the R18-9AK.

Weight Class: Mini Excavator (1–6 t)
Operating Weight: 1,855 – 1,995 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 Hyundai, retrieved 2026-09-10. Source

No open-licence photo of this machine exists. The drawing shows the type (excavator, Mini 1–6 t), not this machine.

Start here

The attachments buyers in your market ask for first, sized for the R18-9AK.

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.

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 R18-9AK.

Send this answer to a colleague or dealer

Bucket line

Link

Machine, line and sizes

Hyundai R18-9AK: GP - general purpose digging bucket (GP-30)

R18-9AK at a glance

Figure	Value	Source
Max dig depth	2,405 mm	maker's document (hyundai-ce.eu)
Max reach	4,020 mm	maker's document (hyundai-ce.eu)
Max dump height	2,680 mm	maker's document (hyundai-ce.eu)
Arm length	960–1,120 mm	maker's document (hyundai-ce.eu)
Main pump flow	36 l/min	maker's document (hyundai-ce.eu)
Bucket capacity	0.04 m³	maker's document (hyundai-ce.eu)
Lift capacity	910 kg	maker's document (hyundai-ce.eu)
Transport width	980 mm	maker's document (hyundai-ce.eu)

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

What the R18-9AK figures mean for its attachments

The main pump delivers up to 36 l/min at 206 bar. That is the pump output of the whole machine, not the flow an attachment gets.
It digs down to 2,405 mm. That is the deepest trench it can open.
Its maximum reach is 4,020 mm.
It dumps at up to 2,680 mm, so a truck or skip side has to sit below that height.
Hyundai offers arms from 960 to 1,120 mm. A longer arm reaches further, a shorter one handles a heavier bucket.
Hyundai lists a bucket capacity of 0.04 m³.
Hyundai gives a lifting capacity of 910 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
For transport it measures 3,840 x 980 x 2,300 mm (length, width, height).
Engine power is 12.1 kW.

Figures as published by Hyundai in its own documents.

How the R18-9AK compares with its neighbours

The nearest models by weight, with the difference to the R18-9AK in parentheses where both makers publish the figure.

Model	Operating weight	Max dig depth	Main pump flow
R18-9AK	1.855 t	2,405 mm	36 l/min
Hyundai HX17A Z	1.85 t (-0.005 t)	2,440 mm (+35)	34.6 l/min (-1.4)
Hyundai HX19A	1.885 t (+0.03 t)	2,540 mm (+135)	34.6 l/min (-1.4)
Develon DX17Z-7	1.85 t (-0.005 t)	2,440 mm (+35)	34.6 l/min (-1.4)

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

R18-9AK: build years and variants

Build years: 2020–2026

Variants

R18-9AK (2020–2026)

Years and variants as listed in the LECTURA Specs database.

Questions about the R18-9AK

What bucket size fits the R18-9AK?: Hyundai lists a bucket capacity of 0.04 m³ for it.

Buckets Tools Quick couplers

Bucket sets for this machine

Sets of one bucket profile that include buckets listed for the Hyundai R18-9AK. Each set lists the buckets that match the machine's operating weight.

German-profile set
Buckets in the set for this weight: GP, GB, GBH
Italian-profile set
Buckets in the set for this weight: GPL, GBP, GBPH
Nordic-profile set
Buckets in the set for this weight: DS, PS, PSH, KS, KSV
Dutch-profile set
Buckets in the set for this weight: BDP, SB, PDP

Hyundai R18-9AK: machine data

Operating weight: 1,855 – 1,995 kg
Engine power: 12.1 kW
Maximum digging depth: 2,405 mm
Maximum dump height: 2,680 mm

As published by Hyundai, retrieved 2026-09-19. Source

Before you order: check the interface

The weight class of the Hyundai R18-9AK 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.

On a mini excavator the weight of the attachment counts for more than on a larger machine, because every kilogram of bucket is taken from lift capacity and stability. A narrow trenching bucket and a wide grading bucket are the usual pair, and many machines run a small quick coupler to change between them.

Quick coupler brackets at this weight

In our model tables, the attachments listed for the Hyundai R18-9AK 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:

Other Hyundai models of a similar weight

Other makes of a similar weight

Operating weight within 2 t of the Hyundai R18-9AK.

Other Hyundai 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 Hyundai R18-9AK.

Get a price Custom Engineering

Do you sell Hyundai 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.

Attachments for the Hyundai R18-9AK weight range

Catalogue sizes for the R18-9AK

Start here

Which coupler is on your machine?

Send me the spec sheet for my machine

Send this answer to a colleague or dealer

R18-9AK at a glance

What the R18-9AK figures mean for its attachments

How the R18-9AK compares with its neighbours

R18-9AK: build years and variants

Variants

Questions about the R18-9AK

Filters

Buckets

Standard mini-ex buckets set No. 1

Standard mini-ex buckets set No. 2

Dutch mini-ex buckets set No. 3

Nordic mini-ex buckets set No. 4

Special use mini-ex buckets

Tools

Other mini-ex attachments

Also available

Quick couplers