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href="https://de.wikipedia.org/wiki/Baumstumpffr%C3%A4se" title="Baumstumpffräse – German" lang="de" hreflang="de" data-title="Baumstumpffräse" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/K%C3%A4nnufrees" title="Kännufrees – Estonian" lang="et" hreflang="et" data-title="Kännufrees" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A0%E0%A5%82%E0%A4%82%E0%A4%A0_%E0%A4%95%E0%A4%A4%E0%A4%B0%E0%A4%95" title="ठूंठ कतरक – Hindi" lang="hi" hreflang="hi" data-title="ठूंठ कतरक" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Stobbenfrees" title="Stobbenfrees – Dutch" lang="nl" hreflang="nl" data-title="Stobbenfrees" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Stubbefreser" title="Stubbefreser – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Stubbefreser" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Frezarka_do_pni" title="Frezarka do pni – Polish" lang="pl" hreflang="pl" data-title="Frezarka do pni" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link 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class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B8%A7%E0%B9%88%E0%B8%B2%E0%B8%99%E0%B8%82%E0%B8%B8%E0%B8%94%E0%B8%95%E0%B8%AD" title="สว่านขุดตอ – Thai" lang="th" hreflang="th" data-title="สว่านขุดตอ" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q2036130#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div 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.mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional 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Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Stump+grinder%22">"Stump grinder"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Stump+grinder%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Stump+grinder%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Stump+grinder%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Stump+grinder%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Stump+grinder%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">February 2017</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Vertical_stump_grinder_at_work..jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Vertical_stump_grinder_at_work..jpg/220px-Vertical_stump_grinder_at_work..jpg" decoding="async" width="220" height="276" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Vertical_stump_grinder_at_work..jpg/330px-Vertical_stump_grinder_at_work..jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Vertical_stump_grinder_at_work..jpg/440px-Vertical_stump_grinder_at_work..jpg 2x" data-file-width="523" data-file-height="657" /></a><figcaption>Vertical stump grinder at work.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Stump_grinder.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Stump_grinder.jpg/220px-Stump_grinder.jpg" decoding="async" width="220" height="139" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Stump_grinder.jpg/330px-Stump_grinder.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Stump_grinder.jpg/440px-Stump_grinder.jpg 2x" data-file-width="3318" data-file-height="2100" /></a><figcaption>Horizontal stump grinder <br />(<a class="external text" href="https://commons.wikimedia.org/wiki/File:Horizontal%20stump%20grinder.webm">Click for video</a>)</figcaption></figure> <p>A stump grinder is a machine designed to remove <a href="/wiki/Tree_stump" title="Tree stump">tree stumps</a> by using a rotating cutting disc that chips away the wood. The machine typically features a cutter wheel with fixed <a href="/wiki/Tungsten_carbide" title="Tungsten carbide">carbide</a> teeth. The cutter wheel's movements are controlled by <a href="/wiki/Hydraulic_cylinders" class="mw-redirect" title="Hydraulic cylinders">hydraulic cylinders</a>, which allow it to move laterally and vertically to grind through the stump. </p><p>Stump grinding is commonly performed by professional <a href="/wiki/Arborist" title="Arborist">arborists</a> or <a href="/wiki/Landscaper" class="mw-redirect" title="Landscaper">landscapers</a>. However, stump grinders can also be rented from equipment hire companies for personal use. Given the machine’s power and potential hazards, proper operation is crucial to ensure both efficiency and safety. </p><p>Professionals hired to perform stump grinding often coordinate with <a href="/wiki/Utility_companies" class="mw-redirect" title="Utility companies">utility companies</a> to identify and mark underground utilities that may be affected during the grinding process. Depending on the size and number of stumps, the task can be completed relatively quickly by experienced operators. </p> <div class="mw-heading mw-heading2"><h2 id="Vertical_stump_grinder">Vertical stump grinder</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stump_grinder&action=edit&section=1" title="Edit section: Vertical stump grinder"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A <b>stump grinder</b> or <b>stump cutter</b> is a <a href="/wiki/Power_tool" title="Power tool">power tool</a> or equipment attachment that removes <a href="/wiki/Tree_stump" title="Tree stump">tree stumps</a> by means of a rotating cutting disc that chips away the <a href="/wiki/Wood" title="Wood">wood</a>. </p><p>Machines are available in various models and versions, to cover a power range from 70 to 300 Hp. </p><p>There are also types of stump grinders that are applied to <a href="/wiki/Tractor" title="Tractor">tractors</a>, <a href="/wiki/Excavator" title="Excavator">excavators</a>, <a href="/wiki/Skid_steer" class="mw-redirect" title="Skid steer">skid steers</a> and other earth moving and construction equipment. These machines can completely remove the roots of the trees or recover the central part of the roots. </p><p>Vertical stump grinders are usually used in forests, for plant biomass, for the forestry sector, and for the maintenance of green areas, etc. They can destroy an entire root of 50 cm (20 in) in diameter to more than one meter deep in 30 seconds. Studies have shown that the normal stump grinder (with disc and teeth) can eliminate most of the first 20–25 centimetres (8–10 in) of stumps. Vertical stump grinder can completely destroy tree stumps of up to 150 cm (59 in) in diameter permanently.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>They are made up of a sturdy gear box from which a transmission shaft emerges to which the cutting edges are connected. Vertical grinders can remove the stump to a depth in the subsoil greater than one meter, while with normal horizontal grinders the stump is mostly shortened in the subsoil by 20 or 25 centimeters. </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stump_grinder&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output 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.plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Stump_grinders" class="extiw" title="commons:Category:Stump grinders">Stump grinders</a></span>.</div></div> </div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.tslanbao.net/">Diamond Grinding Wheel | Resin Grinding Wheel</a></span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist 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tape</a></li> <li><a href="/wiki/Hemispherical_photography" title="Hemispherical photography">Hemispherical photography</a></li> <li><a href="/wiki/Inclinometer" title="Inclinometer">Inclinometer</a></li> <li><a href="/wiki/Increment_borer" title="Increment borer">Increment borer</a></li> <li><a href="/wiki/Rangefinding_telemeter" class="mw-redirect" title="Rangefinding telemeter">Rangefinder</a> <ul><li><a href="/wiki/Laser_rangefinder" title="Laser rangefinder">laser</a></li></ul></li> <li><a href="/wiki/Microtome" title="Microtome">Microtome</a></li> <li><a href="/wiki/Relascope" title="Relascope">Relascope</a></li> <li><a href="/wiki/Tree_caliper" title="Tree caliper">Tree caliper</a></li> <li><a href="/wiki/Wedge_prism" title="Wedge prism">Wedge prism</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Wildfire_suppression_equipment_and_personnel" title="Wildfire suppression equipment and personnel">Fire suppression</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aerial_firefighting" title="Aerial firefighting">Aerial firefighting</a> <ul><li><a href="/wiki/DC-10_Air_Tanker" title="DC-10 Air Tanker">DC-10</a></li> <li><a href="/wiki/Unmanned_aerial_vehicle#Forest_fire_detection" title="Unmanned aerial vehicle">UAVs</a></li></ul></li> <li><a href="/wiki/Driptorch" title="Driptorch">Driptorch</a></li> <li><a href="/wiki/Fire_flapper_(tool)" class="mw-redirect" title="Fire flapper (tool)">Fire flapper</a></li> <li><a href="/wiki/Fire_rake" title="Fire rake">Fire rake</a></li> <li><a href="/wiki/Fire_retardant#Forest-fire_fighting" title="Fire retardant">Fire retardant</a></li> <li><a href="/wiki/Helitack" title="Helitack">Helitack</a></li> <li><a href="/wiki/McLeod_(tool)" title="McLeod (tool)">McLeod</a> (rakehoe)</li> <li><a href="/wiki/Pulaski_(tool)" title="Pulaski (tool)">Pulaski</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Axe" title="Axe">Axes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Billhook" title="Billhook">Billhook</a></li> <li><a href="/wiki/Broadaxe" title="Broadaxe">Broadaxe</a></li> <li><a href="/wiki/Brush_hook" class="mw-redirect" title="Brush hook">Brush hook</a></li> <li><a href="/wiki/Froe" title="Froe">Froe</a> (shake axe)</li> <li><a href="/wiki/Hatchet" title="Hatchet">Hatchet</a></li> <li><a href="/wiki/Labrys" title="Labrys">Labrys</a></li> <li><a href="/wiki/Log_splitter" title="Log splitter">Log splitter</a></li> <li><a href="/wiki/Marking_axe" title="Marking axe">Marking axe</a></li> <li><a href="/wiki/Splitting_maul" title="Splitting maul">Splitting maul</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Saw" title="Saw">Saws</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bow_saw" title="Bow saw">Bow saw</a></li> <li><a href="/wiki/Bucksaw" title="Bucksaw">Bucksaw</a></li> <li><a href="/wiki/Chainsaw" title="Chainsaw">Chainsaw</a> <ul><li><a href="/wiki/Chainsaw_safety_clothing" title="Chainsaw safety clothing">safety clothing</a></li> <li><a href="/wiki/Chainsaw_safety_features" title="Chainsaw safety features">safety features</a></li></ul></li> <li><a href="/wiki/Crosscut_saw" title="Crosscut saw">Crosscut saw</a></li> <li><a href="/wiki/Dragsaw" title="Dragsaw">Dragsaw</a></li> <li><a href="/wiki/Head_saw" title="Head saw">Head saw</a></li> <li><a href="/wiki/Lumber_edger" title="Lumber edger">Lumber edger</a></li> <li><a href="/wiki/Polesaw" title="Polesaw">Polesaw</a></li> <li><a href="/wiki/Portable_sawmill" title="Portable sawmill">Portable sawmill</a></li> <li><a href="/wiki/Resaw" title="Resaw">Resaw</a></li> <li><a href="/wiki/Two-man_saw" title="Two-man saw">Two-man saw</a></li> <li><a href="/wiki/Whipsaw" title="Whipsaw">Whipsaw</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Logging" title="Logging">Logging</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cant_hook" title="Cant hook">Cant hook</a></li> <li><a href="/wiki/Feller_buncher" title="Feller buncher">Feller buncher</a></li> <li><a href="/wiki/Forwarder" title="Forwarder">Forwarder</a></li> <li><a href="/wiki/Go-devil" title="Go-devil">Go-devil</a></li> <li><a href="/wiki/Harvester_(forestry)" title="Harvester (forestry)">Harvester</a></li> <li><a href="/wiki/Heli-logging" title="Heli-logging">Helicopter</a></li> <li><a href="/wiki/Logging_truck" title="Logging truck">Log truck</a></li> <li><a href="/wiki/Lombard_Steam_Log_Hauler" title="Lombard 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tyer</a></li> <li><a href="/wiki/Tsakat" class="mw-redirect" title="Tsakat">Tsakat</a></li> <li><a href="/wiki/Whoopie_sling" title="Whoopie sling">Whoopie sling</a></li> <li><a href="/wiki/Kiln#Wood-drying_kiln" title="Kiln">Wood-drying kiln</a></li> <li><a href="/wiki/Woodchipper" title="Woodchipper">Woodchipper</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b>Categories</b> <ul><li><a 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