{"id":553,"date":"2026-07-21T05:40:35","date_gmt":"2026-07-21T05:40:35","guid":{"rendered":"https:\/\/soil-stabiliser.com\/?p=553"},"modified":"2026-07-21T05:40:35","modified_gmt":"2026-07-21T05:40:35","slug":"how-to-choose-the-right-stone-crusher-for-your-tractor","status":"publish","type":"post","link":"https:\/\/soil-stabiliser.com\/de\/how-to-choose-the-right-stone-crusher-for-your-tractor\/","title":{"rendered":"How to Choose the Right Stone Crusher for Your Tractor"},"content":{"rendered":"


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

<\/p>\n

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Buying the wrong stone crusher for your tractor is an expensive mistake. Underpower the machine and it will stall or work inefficiently on harder ground. Overspecify it and you pay for capacity your tractor cannot deliver. Choose the wrong working width and you either leave stones untreated or damage the machine through overloading.<\/p>\n

This guide walks you through the four key decisions every buyer needs to make before choosing a tractor stone crusher \u2014 horsepower and PTO speed, working width, stone size and depth, and linkage capacity \u2014 and explains which series and configuration fits each combination.<\/p>\n<\/div>\n

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In diesem Leitfaden<\/div>\n
Step 1 \u2014 Tractor HP & PTO speed<\/span>
\nStep 2 \u2014 Working width<\/span>
\nStep 3 \u2014 Stone size & depth<\/span>
\nStep 4 \u2014 Linkage capacity<\/span>
\nSeries comparison<\/span>
\nST vs DT explained<\/span>
\nH\u00e4ufig gestellte Fragen<\/span><\/div>\n<\/div>\n

<\/p>\n

Why the Wrong Stone Crusher Costs You Money<\/h2>\n
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A stone crusher that is too light for your ground conditions will struggle through dense stone concentrations, overheat the rotor drive, and leave partially crushed stones that still cause problems for following operations. A machine that is too wide for your tractor’s power output will run the engine at excessive load, accelerating wear on both tractor and crusher.<\/p>\n

Getting the specification right means understanding four variables and matching them to the available range. For an overview of the different types of stone crushers and how they are classified, this stone crusher reference guide<\/a> provides useful background before you start the selection process.<\/p>\n

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\u26a0\ufe0f Too Light<\/div>\n

Rotor stalls on large stones. Incomplete crushing leaves stones that damage following operations. Excessive rotor tooth wear from repeated impact on oversized material.<\/p>\n<\/div>\n

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\u26a0\ufe0f Too Wide<\/div>\n

Tractor runs at maximum engine load across the full pass. Increased fuel consumption, accelerated tractor wear, and reduced working speed reduce daily output.<\/p>\n<\/div>\n

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\u26a0\ufe0f Wrong PTO Speed<\/div>\n

Running a 1000rpm-only machine at 540rpm reduces rotor speed below the design threshold, cutting kinetic energy and crushing capacity significantly.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Step 1 \u2014 Know Your Tractor Horsepower and PTO Speed<\/h2>\n
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Tractor horsepower determines which series you can run. PTO speed \u2014 either 540rpm or 1000rpm \u2014 determines which specific configuration within that series is compatible with your machine. Both must be confirmed before selecting a model.<\/p>\n

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70 \u2013 150hp<\/div>\n

Light-duty series (STCL). Six configurations from 1,110mm to 2,070mm working width. ST variants accept 540\u20131000rpm; DT variants require 1000rpm. Starting point for small farms, vineyards, and orchards.<\/p>\n<\/div>\n

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80 \u2013 280hp<\/div>\n

Mid-range series (STCM). Seven configurations from 1,340mm to 2,304mm. ST\/125 accepts 540 or 1000rpm; all others require 1000rpm. Covers most professional arable and contracting operations.<\/p>\n<\/div>\n

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280 \u2013 400hp<\/div>\n

Heavy-duty series (STCH). Three configurations from 2,080mm to 2,560mm. All require 1000rpm PTO. For large-scale civil contracting, road preparation, and land reclamation.<\/p>\n<\/div>\n<\/div>\n

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\ud83d\udca1 PTO Speed Note<\/div>\n

If you are unsure of your tractor’s PTO speed, check the tractor’s specification sheet or look for the rpm marking stamped on the PTO stub shaft. Older European tractors (pre-1990) commonly have 540rpm only. Most tractors from 100hp upward offer both 540 and 1000rpm outputs \u2014 but always confirm before ordering.<\/p>\n<\/div>\n

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Step 2 \u2014 Determine Your Required Working Width<\/h2>\n
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Working width determines your daily output per tractor hour and \u2014 in restricted spaces like vineyards \u2014 whether the machine will physically fit in the row. Here is how to match working width to your operation:<\/p>\n

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Vineyard \/ Orchard<\/div>\n
Row spacing typically 1.2\u20131.5m. Select working widths of 1,110mm or 1,350mm<\/strong> (STCL\/ST 100 or ST 125) to fit cleanly within the row without damaging vine infrastructure or root zones.<\/div>\n<\/div>\n
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Small Arable Farm<\/div>\n
Headland constraints and field access tracks determine practical width. Working widths of 1,590\u20131,830mm<\/strong> (STCL\/ST 150 or ST 175) suit most smaller plots without excessive overlap or turning circle issues.<\/div>\n<\/div>\n
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Medium\u2013Large Arable<\/div>\n
Where daily output is the priority, working widths of 2,064\u20132,304mm<\/strong> (STCM 200 to STCM 225) maximise hectares per hour. These widths require 170\u2013220hp tractors to sustain working speed.<\/div>\n<\/div>\n
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Civil \/ Road Contracting<\/div>\n
Road and infrastructure projects demand maximum throughput. Heavy-duty models at 2,080\u20132,560mm<\/strong> (STCH series) are specified for these applications, requiring 280\u2013400hp tractors.<\/div>\n<\/div>\n<\/div>\n
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\ud83d\udca1 Output Tip<\/div>\n

As a rough guide: at 1.5 km\/h working speed, a 2,000mm working width covers approximately 0.3 hectares per hour. At 3 km\/h with the same width, that doubles to 0.6 ha\/hr. Wider working width and higher sustainable speed are both limited by tractor power \u2014 do not exceed the recommended HP range for your chosen model.<\/p>\n<\/div>\n


\n\"Stone<\/p>\n

<\/p>\n

Step 3 \u2014 Assess Your Stone Size and Required Working Depth<\/h2>\n
<\/div>\n

The maximum shredding diameter and working depth of the machine must match or exceed the stone sizes and depths present in your soil. Using a machine rated for 150mm stones on ground containing 300mm rocks will cause rotor damage and incomplete crushing.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
SERIES<\/th>\nLight-duty (STCL)<\/th>\nMid-range (STCM)<\/th>\nHeavy-duty (STCH)<\/th>\n<\/tr>\n<\/thead>\n
Crushing Capability<\/td>\n<\/tr>\n
Max shredding diameter<\/td>\n150 mm<\/td>\n300mm<\/td>\n500mm<\/td>\n<\/tr>\n
Max working depth<\/td>\n150 mm<\/td>\n200mm<\/td>\n250mm<\/td>\n<\/tr>\n
Rotor diameter<\/td>\n450mm<\/td>\n550mm<\/td>\n700mm<\/td>\n<\/tr>\n
Soil Type Guidance<\/td>\n<\/tr>\n
Typical soil \/ application<\/td>\nPost-agricultural soil, vineyards, light arable \u2014 stones generally surface-level and under 150mm<\/td>\nMixed arable, road sub-base, heavier contracting \u2014 stones up to 300mm, depth to 200mm<\/td>\nRocky terrain, civil groundworks, former quarry land \u2014 large embedded rocks, depth to 250mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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\u26a0\ufe0f Important<\/div>\n

If you are unsure of the maximum stone size present in your soil, always specify up. Occasional stones larger than the rated shredding diameter will cause rotor tooth breakage and in some cases rotor housing damage \u2014 both costly to repair. When in doubt, contact our team and describe your soil conditions \u2014 we will advise the safe minimum specification for your ground.<\/p>\n<\/div>\n

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Step 4 \u2014 Check Your Rear Linkage Lift Capacity<\/h2>\n
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Stone crushers are significantly heavier than most other rear-mounted implements. Before ordering, confirm that your tractor’s rear linkage lift capacity meets or exceeds the machine weight \u2014 particularly for mid-range and heavy-duty models, which start at 1,850kg and reach 5,250kg.<\/p>\n

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Light-duty (STCL)<\/div>\n
1,230\u20131,750kg<\/div>\n
Machine weight range<\/div>\n<\/div>\n
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Mid-range (STCM)<\/div>\n
1,850\u20133,840kg<\/div>\n
Machine weight range<\/div>\n<\/div>\n
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Heavy-duty (STCH)<\/div>\n
4,850\u20135,250kg<\/div>\n
Machine weight range<\/div>\n<\/div>\n<\/div>\n
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\ud83d\udca1 Linkage Check<\/div>\n

Your tractor’s rear linkage lift capacity is listed in the operator manual under “three-point hitch specifications.” For mid-range and heavy-duty crushers, also check rear axle load ratings \u2014 the machine weight applied at the rear linkage pivot point adds to the rear axle load figure. If you share your tractor make and model with our team, we can confirm compatibility before you order.<\/p>\n<\/div>\n

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Light \/ Mid \/ Heavy-duty \u2014 Which Range Fits You?<\/h2>\n
<\/div>\n

Use this summary to identify the right starting range, then confirm the specific model with the working width that matches your tractor power and field requirements:<\/p>\n

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Light-duty \u2014 STCL Series<\/div>\n
70\u2013150hp \u00b7 540 or 1000rpm \u00b7 1,110\u20132,070mm<\/div>\n

Best for: vineyard and orchard stone clearing, small-to-medium arable farms, farm track maintenance. Stone sizes up to 150mm, working depth to 150mm. Lightest machine weights in the range \u2014 accessible for smaller tractors.<\/p>\n

6 configurations available \u2192<\/div>\n<\/div>\n
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Mid-range \u2014 STCM Series<\/div>\n
80\u2013280hp \u00b7 540 or 1000rpm \u00b7 1,340\u20132,304mm<\/div>\n

Best for: large arable farms, professional contracting, light road sub-base preparation. Stone sizes up to 300mm, working depth to 200mm. The most versatile series \u2014 seven configurations cover the widest range of tractors and applications in the lineup.<\/p>\n

7 configurations available \u2192<\/div>\n<\/div>\n
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Heavy-duty \u2014 STCH Series<\/div>\n
280\u2013400hp \u00b7 1000rpm \u00b7 2,080\u20132,560mm<\/div>\n

Best for: civil infrastructure, road construction, land reclamation, high-output professional contracting. Stone sizes up to 500mm, working depth to 250mm. Largest rotor in the range at 700mm \u2014 built for the most demanding European groundwork applications.<\/p>\n

3 configurations available \u2192<\/div>\n<\/div>\n<\/div>\n


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

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ST vs DT \u2014 What Is the Difference?<\/h2>\n
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Within the light-duty STCL series, models are designated either ST (single-speed input) or DT (dual-speed input). This distinction affects PTO compatibility and typical application:<\/p>\n

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ST Models (ST 100\u2013175)<\/div>\n