{"id":556,"date":"2026-07-21T05:45:21","date_gmt":"2026-07-21T05:45:21","guid":{"rendered":"https:\/\/soil-stabiliser.com\/?p=556"},"modified":"2026-07-21T05:45:21","modified_gmt":"2026-07-21T05:45:21","slug":"stone-crusher-vs-rock-picker-which-machine-do-you-need-first","status":"publish","type":"post","link":"https:\/\/soil-stabiliser.com\/fr\/stone-crusher-vs-rock-picker-which-machine-do-you-need-first\/","title":{"rendered":"Concasseur de pierres ou ramasse-pierres\u00a0: quelle machine vous faut-il en premier\u00a0?"},"content":{"rendered":"


\n\"Tractor<\/p>\n

<\/p>\n

\n

When stones are causing problems on your land, two machines are commonly recommended: a stone crusher and a rock picker. Both deal with stones. Both attach to a tractor. But they work in completely different ways and solve completely different problems \u2014 and buying the wrong one first can cost you significant time and money before you realise the mistake.<\/p>\n

This guide explains exactly what each machine does, compares them side by side, and helps you decide which one to buy first \u2014 or whether you eventually need both.<\/p>\n<\/div>\n

<\/p>\n

\n
In This Guide<\/div>\n
The core difference<\/span>
\nWhat a stone crusher does<\/span>
\nWhat a rock picker does<\/span>
\nSide-by-side comparison<\/span>
\nWhen to choose each<\/span>
\nCan you use both?<\/span>
\nFAQ<\/span><\/div>\n<\/div>\n

<\/p>\n

The Core Difference \u2014 One Word<\/h2>\n
<\/div>\n

The entire difference between these two machines comes down to one word: destination<\/strong>.<\/p>\n

\n
\n
\ud83e\udea8<\/div>\n
Concasseur de pierres<\/div>\n

Stones stay in the field. They are pulverised in place and returned to the soil. Nothing is removed.<\/strong><\/p>\n<\/div>\n

\n
\ud83e\uddfa<\/div>\n
Ramasseur de pierres<\/div>\n

Stones are collected from the surface and transported away from the field. Material is physically removed.<\/strong><\/p>\n<\/div>\n<\/div>\n

This single distinction drives every other difference between them \u2014 what they can handle, how they work, which tractor power they need, and what they cost to operate. Understanding it is the key to making the right choice for your land.<\/p>\n

<\/p>\n

What Does a Stone Crusher Do?<\/h2>\n
<\/div>\n

A tractor stone crusher is a PTO-driven implement that uses a high-speed rotor fitted with hardened teeth to pulverise stones embedded in the soil. As the machine moves forward, the rotor penetrates the soil surface, strikes stones with high-force impact, and fractures them into small fragments that are redistributed evenly across the treated area \u2014 all in a single pass.<\/p>\n

The key operational characteristic is that the crushed material stays in the field. Stones are not collected, loaded, or transported \u2014 they are broken down until they are no longer a problem and incorporated back into the soil profile. This approach is permanent: once a stone has been crushed to sub-surface particle size, it will not resurface or cause further equipment damage in the treated area.<\/p>\n

Stone crushers are available in light-duty (70\u2013150hp, max 150mm stone), mid-range (80\u2013280hp, max 300mm stone), and heavy-duty (280\u2013400hp, max 500mm stone) configurations. For a detailed overview of stone crusher types and how they are categorised, see this stone crusher reference guide<\/a>.<\/p>\n

<\/p>\n

\n
\n
500mm<\/div>\n
Max stone size<\/div>\n<\/div>\n
\n
250mm<\/div>\n
Max working depth<\/div>\n<\/div>\n
\n
1 Pass<\/div>\n
Permanent in-situ result<\/div>\n<\/div>\n
\n
70\u2013400hp<\/div>\n
Tractor power range<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

What Does a Rock Picker Do?<\/h2>\n
<\/div>\n

A rock picker \u2014 also called a stone picker or rock collector \u2014 is a hydraulically driven implement that moves across the field surface, scooping up stones and depositing them into an onboard collection bunker. Once the bunker is full, the operator drives to the field edge, empties it, and continues.<\/p>\n

Unlike a stone crusher, a rock picker operates on the soil surface only \u2014 it does not penetrate to any significant depth. It is designed to collect stones that are already visible on or just below the surface, typically after cultivation has brought them up. It physically removes those stones from the field, which is useful where stones need to be cleared completely \u2014 for example, ahead of potato planting or mechanical harvesting operations where any surface stone can jam or damage equipment.<\/p>\n

The CT-2100 rock picker from Watanabe Netherlands has a working width of 1,950mm, a bunker capacity of 2.5m\u00b3, and requires a minimum of 110hp with a 60 L\/min hydraulic oil flow. Working speed is 3\u20135 km\/h.<\/p>\n

<\/p>\n

\n
\n
Surface<\/div>\n
Operates on soil surface only<\/div>\n<\/div>\n
\n
2.5m\u00b3<\/div>\n
Bunker capacity (CT-2100)<\/div>\n<\/div>\n
\n
110hp+<\/div>\n
Min tractor power<\/div>\n<\/div>\n
\n
Removes<\/div>\n
Stones physically taken from field<\/div>\n<\/div>\n<\/div>\n


\n\"Tractor<\/p>\n

<\/p>\n

Side-by-Side Comparison<\/h2>\n
<\/div>\n

Here is how the two machines compare across the factors that matter most to a European farmer or contractor:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
FACTOR<\/th>\nConcasseur de pierres<\/th>\nRamasseur de pierres<\/th>\n<\/tr>\n<\/thead>\n
How It Works<\/td>\n<\/tr>\n
Stone destination<\/td>\nPulverised in place, stays in field<\/td>\nCollected and physically removed<\/td>\n<\/tr>\n
Working depth<\/td>\n150\u2013250mm (sub-surface)<\/td>\nSurface only<\/td>\n<\/tr>\n
Stone size handled<\/td>\nUp to 500mm diameter<\/td>\nSurface stones \u2014 varies by model<\/td>\n<\/tr>\n
Result<\/td>\nPermanent \u2014 stones cannot resurface<\/td>\nTemporary \u2014 new stones emerge after cultivation<\/td>\n<\/tr>\n
Exigences relatives aux tracteurs<\/td>\n<\/tr>\n
Minimum tractor power<\/td>\nFrom 70hp<\/td>\nFrom 110hp (CT-2100)<\/td>\n<\/tr>\n
PTO required<\/td>\nYes \u2014 540 or 1000rpm<\/td>\nHydraulic \u2014 60 L\/min oil flow<\/td>\n<\/tr>\n
Linkage<\/td>\nRear 3-point, Category 2<\/td>\nRear 3-point, Category 2<\/td>\n<\/tr>\n
Operation<\/td>\n<\/tr>\n
Passes required<\/td>\nSingle pass \u2014 complete in one go<\/td>\nMultiple passes + bunker emptying cycles<\/td>\n<\/tr>\n
Stone disposal required<\/td>\nNo<\/td>\nYes \u2014 stones must be removed from field<\/td>\n<\/tr>\n
Works on uncultivated ground<\/td>\nYes<\/td>\nLess effective \u2014 stones must be at surface<\/td>\n<\/tr>\n
Best Application<\/td>\n<\/tr>\n
Arable land preparation<\/td>\n\u2713 Excellent \u2014 permanent result<\/td>\n\u2713 Good for post-cultivation surface clearance<\/td>\n<\/tr>\n
Vineyard \/ orchard<\/td>\n\u2713 Excellent \u2014 compact models available<\/td>\nLimited \u2014 row spacing constraints<\/td>\n<\/tr>\n
Potato field preparation<\/td>\n\u2713 Good pre-season treatment<\/td>\n\u2713 Excellent post-cultivation clearance<\/td>\n<\/tr>\n
Road \/ civil works<\/td>\n\u2713 Excellent<\/td>\nNot suitable<\/td>\n<\/tr>\n
Where stones must be removed<\/td>\nNot applicable<\/td>\n\u2713 Only option<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

When to Choose a Stone Crusher<\/h2>\n
<\/div>\n

A stone crusher is the right choice in these situations:<\/p>\n

\n
\n
\u2713<\/div>\n
\n
You Want a Permanent Solution<\/div>\n

Once a stone crusher has treated a field, the stones in that area are permanently eliminated. They cannot resurface after cultivation because they no longer exist as solid objects. A rock picker removes surface stones but leaves sub-surface stones intact \u2014 they reappear after every ploughing cycle.<\/p>\n<\/div>\n<\/div>\n

\n
\u2713<\/div>\n
\n
Stones Are Present Below the Surface<\/div>\n

A rock picker only works on stones at or just below the soil surface. Sub-surface stones \u2014 which are the cause of most seed drill and tillage equipment damage \u2014 can only be addressed by a stone crusher, which works to depths of 150\u2013250mm depending on the series.<\/p>\n<\/div>\n<\/div>\n

\n
\u2713<\/div>\n
\n
You Are Working on Road or Construction Ground<\/div>\n

Road sub-base preparation, site clearance, and rural infrastructure works require the crushing capacity and working depth that only a mid-range or heavy-duty stone crusher can deliver. A rock picker has no application in civil groundworks.<\/p>\n<\/div>\n<\/div>\n

\n
\u2713<\/div>\n
\n
You Are Clearing a Vineyard or Orchard<\/div>\n

Compact stone crusher models starting at 1,110mm working width fit within standard European vine row spacings. A rock picker’s geometry and working width make it unsuitable for most vineyard and orchard applications where row spacing constrains machine dimensions.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

When to Choose a Rock Picker<\/h2>\n
<\/div>\n

A rock picker is the right choice in these specific situations:<\/p>\n

\n
\n
\u2713<\/div>\n
\n
Stones Must Be Completely Removed from the Field<\/div>\n

Potato growers in particular require fields that are as stone-free as possible before planting and harvesting. Even small stones that remain in the soil after crushing can damage potato diggers and contaminate harvested crop. In this case, stone removal \u2014 not pulverisation \u2014 is the objective.<\/p>\n<\/div>\n<\/div>\n

\n
\u2713<\/div>\n
\n
After Ploughing Has Brought Stones to the Surface<\/div>\n

Deep autumn ploughing regularly brings previously buried stones to the surface. A rock picker run across the field after ploughing and before spring cultivation clears these surface stones quickly and efficiently ahead of drilling.<\/p>\n<\/div>\n<\/div>\n

\n
\u2713<\/div>\n
\n
Very Large Surface Stones That Cannot Be Crushed<\/div>\n

Boulders and surface rocks significantly above 500mm in diameter \u2014 beyond the rated capacity of even the heaviest stone crushers \u2014 need to be physically picked up and removed. In this situation a rock picker (or excavator and trailer) is the only option.<\/p>\n<\/div>\n<\/div>\n<\/div>\n


\n\"THOR<\/p>\n

<\/p>\n

Can You Use Both Together?<\/h2>\n
<\/div>\n

Yes \u2014 and for operations with particularly heavy stone burdens, using both machines in sequence is the most effective approach. The typical combined workflow for arable land with a significant stone problem looks like this:<\/p>\n

\n
\n
1<\/div>\n
Stone crusher first pass<\/strong> \u2014 pulverises sub-surface stones and large embedded rocks. Permanently eliminates the bulk of the stone problem to working depth.<\/div>\n<\/div>\n
\n
2<\/div>\n
Cultivation pass<\/strong> \u2014 ploughing or power harrowing brings any remaining fragments to the surface.<\/div>\n<\/div>\n
\n
3<\/div>\n
Rock picker pass<\/strong> \u2014 collects and removes any surface material that remains, producing a completely stone-free seedbed ready for potato planting or precision drilling.<\/div>\n<\/div>\n<\/div>\n
\n
\ud83d\udca1 Practical Note<\/div>\n

For most arable operations in the Netherlands, UK, Belgium, and France, a stone crusher alone is sufficient for long-term field management. The combined approach is most commonly used by potato specialists and market vegetable growers where zero stone tolerance is required at harvest. If you are unsure which applies to your operation, contact our team for advice.<\/p>\n<\/div>\n

<\/p>\n

\n
View Our Stone Crusher & Stone Clearing Range<\/div>\n
All Stone Crushers \u2192<\/a>
\nTHOR 2.4 \u2192<\/a>
\nTHOR 3.0 \u2192<\/a><\/div>\n<\/div>\n

<\/p>\n

Frequently Asked Questions<\/h2>\n
<\/div>\n
\n
\n
\n
Which is better for a mixed arable farm \u2014 a stone crusher or a rock picker?<\/div>\n
Q<\/div>\n<\/div>\n
\n

For most mixed arable operations, a stone crusher delivers better long-term value. It permanently eliminates sub-surface stones \u2014 the primary source of seed drill, plough, and harvest header damage \u2014 in a single pass, with no disposal requirement. A rock picker removes surface stones only and requires repeated passes as cultivation brings new stones up each season. Unless stones must be physically removed from the field (potato growing, market vegetables), a stone crusher should be the first purchase.<\/p>\n<\/div>\n<\/div>\n

\n
\n
Does a stone crusher work on stones that are already at the surface?<\/div>\n
Q<\/div>\n<\/div>\n
\n

Yes. A stone crusher processes both surface and sub-surface stones simultaneously in a single pass. It does not need stones to be at any particular depth to operate effectively \u2014 surface stones are picked up by the rotor teeth on the first contact and processed along with embedded material.<\/p>\n<\/div>\n<\/div>\n

\n
\n
Will a rock picker work after a stone crusher pass?<\/div>\n
Q<\/div>\n<\/div>\n
\n

Yes, and this is the recommended sequence for the highest stone clearance standard. After the stone crusher has processed the bulk of the stone burden to depth, a cultivation pass brings any remaining small fragments to the surface. A rock picker then collects these surface fragments for complete removal. This combined approach is standard practice for potato growing in high-stone-burden areas of Europe.<\/p>\n<\/div>\n<\/div>\n

\n
\n
Can Watanabe Netherlands supply both a stone crusher and a rock picker?<\/div>\n
Q<\/div>\n<\/div>\n
\n

Yes. Watanabe Netherlands supplies both tractor stone crushers across the full 70\u2013400hp range and the CT-2100 rock picker. Contact our team at sales@soil-stabiliser.com to discuss your specific requirements \u2014 we can advise on the right combination and provide a combined delivery quotation to your location across Europe.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
Watanabe Pays-Bas<\/div>\n

Not Sure Which Machine You Need?<\/h3>\n

Tell us your tractor specification, field conditions, and what crops you grow \u2014 our team will advise whether a stone crusher, rock picker, or both is the right solution, and provide a delivery quotation across Europe.<\/p>\n

VIEW STONE CRUSHERS<\/a>
\nCONTACT US<\/a><\/div>\n

\ud83d\udce7 sales@soil-stabiliser.com<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

When stones are causing problems on your land, two machines are commonly recommended: a stone crusher and a rock picker. Both deal with stones. Both attach to a tractor. But they work in completely different ways and solve completely different problems \u2014 and buying the wrong one first can cost you significant time and money […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[44],"tags":[47],"class_list":["post-556","post","type-post","status-publish","format-standard","hentry","category-blog","tag-stone-crusher-machine"],"_links":{"self":[{"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/posts\/556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/comments?post=556"}],"version-history":[{"count":3,"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/posts\/556\/revisions"}],"predecessor-version":[{"id":559,"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/posts\/556\/revisions\/559"}],"wp:attachment":[{"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/media?parent=556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/categories?post=556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/soil-stabiliser.com\/fr\/wp-json\/wp\/v2\/tags?post=556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}