{"product_id":"koala-rock-screen","title":"Bear Iron Works Koala Grizzly Rock Screen for Yard Tractors \u0026 Ride-On Skid Steers","description":"\u003ch1 data-section-id=\"1dgomkq\" dir=\"auto\" data-start=\"254\" data-end=\"337\" class=\"PDq2pG_selectionAnchorContainer\"\u003eBear Iron Works Koala Grizzly Rock Screen for Yard Tractors \u0026amp; Ride-On Skid Steers\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp dir=\"auto\" data-start=\"339\" data-end=\"571\"\u003eThe Bear Iron Works Koala Grizzly Rock Screen is a compact material-screening solution designed for smaller yard tractors, ride-on skid steers, landscapers, property-maintenance crews, farms, and lighter-duty screening applications.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"573\" data-end=\"1025\"\u003eWith a 60-inch internal width and approximately 425 lb operating weight, the Koala gives operators of smaller equipment a practical way to separate rocks, debris, and oversized material from usable soil without stepping up to a larger contractor-size Grizzly. Bear identifies machines such as the Bobcat MT100 and compact tractors in approximately the 16.6–24.8 HP range as representative equipment for this model. \u003cspan class=\"contents\" data-content-reference-start=\"988\" data-content-reference-end=\"1010\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1027\" data-end=\"1362\"\u003eLike Bear Iron Works' larger Grizzly screens, the Koala uses solid steel screening rails and a fixed-angle design intended to allow material to move down the screen while smaller material falls through. It is suitable for garden soil, landscape rock cleaning, property maintenance, agricultural material, and general debris separation.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1364\" data-end=\"1574\"\u003eThe base Koala is available with 3-inch, 4-inch, 5-inch, or 6-inch rail spacing. Contractors needing finer finished material can pair it with Bear Iron Works' removable screen system for more precise screening.\u003c\/p\u003e\n\u003ch2 data-section-id=\"15gbdzz\" dir=\"auto\" data-start=\"1576\" data-end=\"1609\"\u003eWhich model should you choose?\u003c\/h2\u003e\n\u003cp dir=\"auto\" data-start=\"1611\" data-end=\"1761\"\u003e\u003cstrong data-start=\"1611\" data-end=\"1621\"\u003eKoala:\u003c\/strong\u003e Choose the Koala for small yard tractors, ride-on skid steers, tight jobsites, landscaping, farms, and lower-volume screening applications.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1763\" data-end=\"1874\"\u003e\u003cstrong data-start=\"1763\" data-end=\"1775\"\u003eGrowler:\u003c\/strong\u003e Step up to the Growler for compact skid steers and utility tractors in roughly the 25–50 HP range.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1876\" data-end=\"1958\"\u003e\u003cstrong data-start=\"1876\" data-end=\"1884\"\u003eCub:\u003c\/strong\u003e Best for standard-size skid steers and professional contractor screening.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1960\" data-end=\"2048\"\u003e\u003cstrong data-start=\"1960\" data-end=\"1969\"\u003eMama:\u003c\/strong\u003e Designed for backhoes, larger tractors, and heavier construction applications.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"2050\" data-end=\"2154\"\u003e\u003cstrong data-start=\"2050\" data-end=\"2059\"\u003ePapa:\u003c\/strong\u003e Built for full-size loaders, heavy civil, quarry, mining, and high-volume aggregate screening.\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" dir=\"auto\" data-start=\"2156\" data-end=\"2168\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"2170\" data-end=\"3637\"\u003e\n\u003cli data-section-id=\"glet1m\" data-start=\"2170\" data-end=\"2267\"\u003e\n\u003cstrong data-start=\"2172\" data-end=\"2207\"\u003eDesigned for Compact Equipment:\u003c\/strong\u003e Built around smaller yard tractors and ride-on skid steers.\u003c\/li\u003e\n\u003cli data-section-id=\"9sdb04\" data-start=\"2268\" data-end=\"2384\"\u003e\n\u003cstrong data-start=\"2270\" data-end=\"2297\"\u003e60-Inch Internal Width:\u003c\/strong\u003e Provides a practical screening area while remaining manageable with compact equipment.\u003c\/li\u003e\n\u003cli data-section-id=\"vc3rsq\" data-start=\"2385\" data-end=\"2512\"\u003e\n\u003cstrong data-start=\"2387\" data-end=\"2418\"\u003eLightweight Grizzly Design:\u003c\/strong\u003e Approximately 425 lbs, making it the lightest standard Grizzly in the Bear Iron Works lineup.\u003c\/li\u003e\n\u003cli data-section-id=\"4rb2qb\" data-start=\"2513\" data-end=\"2645\"\u003e\n\u003cstrong data-start=\"2515\" data-end=\"2547\"\u003eSolid Steel Screening Rails:\u003c\/strong\u003e Designed for greater durability and resistance to deformation during repeated material screening.\u003c\/li\u003e\n\u003cli data-section-id=\"cza9n4\" data-start=\"2646\" data-end=\"2749\"\u003e\n\u003cstrong data-start=\"2648\" data-end=\"2677\"\u003eMultiple Screen Spacings:\u003c\/strong\u003e Available with 3-inch, 4-inch, 5-inch, or 6-inch standard rail spacing.\u003c\/li\u003e\n\u003cli data-section-id=\"1vs6gb9\" data-start=\"2750\" data-end=\"2864\"\u003e\n\u003cstrong data-start=\"2752\" data-end=\"2780\"\u003eOptional Fine Screening:\u003c\/strong\u003e Compatible with Bear Iron Works removable screens for more precise particle sizing.\u003c\/li\u003e\n\u003cli data-section-id=\"168daqo\" data-start=\"2865\" data-end=\"2978\"\u003e\n\u003cstrong data-start=\"2867\" data-end=\"2896\"\u003eOptional Vibrator System:\u003c\/strong\u003e A vibrator can be added for applications involving wet, sticky, or fine material.\u003c\/li\u003e\n\u003cli data-section-id=\"1f6xajd\" data-start=\"2979\" data-end=\"3127\"\u003e\n\u003cstrong data-start=\"2981\" data-end=\"3011\"\u003eCompact Jobsite Footprint:\u003c\/strong\u003e Well suited to landscaping, residential work, farms, and locations where larger screening equipment is impractical.\u003c\/li\u003e\n\u003cli data-section-id=\"dccuq3\" data-start=\"3128\" data-end=\"3267\"\u003e\n\u003cstrong data-start=\"3130\" data-end=\"3163\"\u003eVersatile Material Screening:\u003c\/strong\u003e Suitable for soil, landscaping rock, gravel, debris, manure, garden material, and other bulk materials.\u003c\/li\u003e\n\u003cli data-section-id=\"1q90rm2\" data-start=\"3268\" data-end=\"3384\"\u003e\n\u003cstrong data-start=\"3270\" data-end=\"3308\"\u003eNo Separate Power Source Required:\u003c\/strong\u003e Screening is performed using gravity and the operator's existing equipment.\u003c\/li\u003e\n\u003cli data-section-id=\"10up09i\" data-start=\"3385\" data-end=\"3488\"\u003e\n\u003cstrong data-start=\"3387\" data-end=\"3419\"\u003eEquipment-Assisted Mobility:\u003c\/strong\u003e Can be repositioned around the work area using compatible equipment.\u003c\/li\u003e\n\u003cli data-section-id=\"fl0bdw\" data-start=\"3489\" data-end=\"3637\"\u003e\n\u003cstrong data-start=\"3491\" data-end=\"3520\"\u003eExpandable Configuration:\u003c\/strong\u003e Available with factory options including removable screens, wings, bang bars, upgraded rails, and other accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"5t7ttf\" dir=\"auto\" data-start=\"3639\" data-end=\"3659\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cul data-start=\"3661\" data-end=\"3789\"\u003e\n\u003cli data-section-id=\"1wuhs96\" data-start=\"3661\" data-end=\"3708\"\u003e1 × Bear Iron Works Koala Grizzly Rock Screen\u003c\/li\u003e\n\u003cli data-section-id=\"1dr2f4c\" data-start=\"3709\" data-end=\"3734\"\u003eSelected screen spacing\u003c\/li\u003e\n\u003cli data-section-id=\"qs98ss\" data-start=\"3735\" data-end=\"3759\"\u003eHeavy-duty steel frame\u003c\/li\u003e\n\u003cli data-section-id=\"1wrgkon\" data-start=\"3760\" data-end=\"3789\"\u003eSolid steel screening rails\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" data-start=\"3791\" data-end=\"3925\"\u003e\u003cstrong data-start=\"3791\" data-end=\"3925\"\u003eRemovable screen, vibrator, wings, bang bars, D-rings, and other factory upgrades are sold separately unless specifically ordered.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1yl5694\" dir=\"auto\" data-start=\"3927\" data-end=\"3945\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv dir=\"auto\" class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3947\" data-end=\"4661\" dir=\"auto\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3947\" data-end=\"3972\"\u003e\n\u003ctr data-start=\"3947\" data-end=\"3972\"\u003e\n\u003cth data-start=\"3947\" data-end=\"3963\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"3963\" data-end=\"3972\" data-col-size=\"md\" class=\"last:pe-10\"\u003eKoala\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3983\" data-end=\"4661\"\u003e\n\u003ctr data-start=\"3983\" data-end=\"4021\"\u003e\n\u003ctd data-start=\"3983\" data-end=\"3998\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-start=\"3998\" data-end=\"4021\" data-col-size=\"md\"\u003eGrizzly Rock Screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4022\" data-end=\"4039\"\u003e\n\u003ctd data-start=\"4022\" data-end=\"4030\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e\n\u003ctd data-start=\"4030\" data-end=\"4039\" data-col-size=\"md\"\u003eKoala\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4040\" data-end=\"4069\"\u003e\n\u003ctd data-start=\"4040\" data-end=\"4058\" data-col-size=\"sm\"\u003eActual Capacity\u003c\/td\u003e\n\u003ctd data-start=\"4058\" data-end=\"4069\" data-col-size=\"md\"\u003e0.86 CY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4070\" data-end=\"4108\"\u003e\n\u003ctd data-start=\"4070\" data-end=\"4096\" data-col-size=\"sm\"\u003eStandard Screen Spacing\u003c\/td\u003e\n\u003ctd data-start=\"4096\" data-end=\"4108\" data-col-size=\"md\"\u003e3 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4109\" data-end=\"4154\"\u003e\n\u003ctd data-start=\"4109\" data-end=\"4136\" data-col-size=\"sm\"\u003eAvailable Screen Spacing\u003c\/td\u003e\n\u003ctd data-start=\"4136\" data-end=\"4154\" data-col-size=\"md\"\u003e3\", 4\", 5\", 6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4155\" data-end=\"4179\"\u003e\n\u003ctd data-start=\"4155\" data-end=\"4172\" data-col-size=\"sm\"\u003eInternal Width\u003c\/td\u003e\n\u003ctd data-start=\"4172\" data-end=\"4179\" data-col-size=\"md\"\u003e60\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4180\" data-end=\"4207\"\u003e\n\u003ctd data-start=\"4180\" data-end=\"4198\" data-col-size=\"sm\"\u003eInternal Length\u003c\/td\u003e\n\u003ctd data-start=\"4198\" data-end=\"4207\" data-col-size=\"md\"\u003e26.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4208\" data-end=\"4232\"\u003e\n\u003ctd data-start=\"4208\" data-end=\"4225\" data-col-size=\"sm\"\u003eExternal Width\u003c\/td\u003e\n\u003ctd data-start=\"4225\" data-end=\"4232\" data-col-size=\"md\"\u003e64\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4233\" data-end=\"4260\"\u003e\n\u003ctd data-start=\"4233\" data-end=\"4251\" data-col-size=\"sm\"\u003eExternal Length\u003c\/td\u003e\n\u003ctd data-start=\"4251\" data-end=\"4260\" data-col-size=\"md\"\u003e28.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4261\" data-end=\"4286\"\u003e\n\u003ctd data-start=\"4261\" data-end=\"4279\" data-col-size=\"sm\"\u003eExternal Height\u003c\/td\u003e\n\u003ctd data-start=\"4279\" data-end=\"4286\" data-col-size=\"md\"\u003e52\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4287\" data-end=\"4315\"\u003e\n\u003ctd data-start=\"4287\" data-end=\"4304\" data-col-size=\"sm\"\u003eApprox. Weight\u003c\/td\u003e\n\u003ctd data-start=\"4304\" data-end=\"4315\" data-col-size=\"md\"\u003e425 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4316\" data-end=\"4358\"\u003e\n\u003ctd data-start=\"4316\" data-end=\"4336\" data-col-size=\"sm\"\u003ePrimary Equipment\u003c\/td\u003e\n\u003ctd data-start=\"4336\" data-end=\"4358\" data-col-size=\"md\"\u003eRide-On Skid Steer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4359\" data-end=\"4403\"\u003e\n\u003ctd data-start=\"4359\" data-end=\"4381\" data-col-size=\"sm\"\u003eReference Equipment\u003c\/td\u003e\n\u003ctd data-start=\"4381\" data-end=\"4403\" data-col-size=\"md\"\u003eBobcat MT100 Class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4404\" data-end=\"4442\"\u003e\n\u003ctd data-start=\"4404\" data-end=\"4426\" data-col-size=\"sm\"\u003eSecondary Equipment\u003c\/td\u003e\n\u003ctd data-start=\"4426\" data-end=\"4442\" data-col-size=\"md\"\u003eYard Tractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4443\" data-end=\"4487\"\u003e\n\u003ctd data-start=\"4443\" data-end=\"4471\" data-col-size=\"sm\"\u003eRecommended Tractor Power\u003c\/td\u003e\n\u003ctd data-start=\"4471\" data-end=\"4487\" data-col-size=\"md\"\u003e16.6–24.8 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4488\" data-end=\"4553\"\u003e\n\u003ctd data-start=\"4488\" data-end=\"4507\" data-col-size=\"sm\"\u003eTractor Examples\u003c\/td\u003e\n\u003ctd data-start=\"4507\" data-end=\"4553\" data-col-size=\"md\"\u003eKubota BX Series \/ John Deere 1 \u0026amp; 2 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4554\" data-end=\"4589\"\u003e\n\u003ctd data-start=\"4554\" data-end=\"4569\" data-col-size=\"sm\"\u003eConstruction\u003c\/td\u003e\n\u003ctd data-start=\"4569\" data-end=\"4589\" data-col-size=\"md\"\u003eHeavy-Duty Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4590\" data-end=\"4633\"\u003e\n\u003ctd data-start=\"4590\" data-end=\"4602\" data-col-size=\"sm\"\u003eOperation\u003c\/td\u003e\n\u003ctd data-start=\"4602\" data-end=\"4633\" data-col-size=\"md\"\u003eManual \/ Equipment-Assisted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4634\" data-end=\"4661\"\u003e\n\u003ctd data-start=\"4634\" data-end=\"4651\" data-col-size=\"sm\"\u003eShipping Class\u003c\/td\u003e\n\u003ctd data-start=\"4651\" data-end=\"4661\" data-col-size=\"md\"\u003eTier 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n#capacity_info {\n  display: grid;\n  grid-template-columns: 1fr 1fr;\n  border-collapse: collapse;\n  color: white;\n  margin-bottom: 20px;\n  width: 480px;\n  max-width: 100%;\n}\n#capacity_info \u003e div {\n  display: contents;\n}\n#capacity_info \u003e div \u003e div {\n  border: 1px solid white;\n  padding: 8px;\n  font-size: 13px;\n}\n\u003c\/style\u003e","brand":"Bear Iron Works","offers":[{"title":"3 Inches \/ Blue","offer_id":50522059178203,"sku":"GK-4523BLU-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"3 Inches \/ Red","offer_id":50522059210971,"sku":"GK-4523RED-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"4 Inches \/ Blue","offer_id":50522059243739,"sku":"GK-4524BLU-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"4 Inches \/ Red","offer_id":50522059276507,"sku":"GK-4524RED-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"5 Inches \/ Blue","offer_id":50522059309275,"sku":"GK-4525BLU-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"5 Inches \/ Red","offer_id":50522059342043,"sku":"GK-4525RED-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"6 Inches \/ Blue","offer_id":50522059374811,"sku":"GK-4526BLU-S","price":3400.0,"currency_code":"USD","in_stock":true},{"title":"6 Inches \/ Red","offer_id":50522059407579,"sku":"GK-4526RED-S","price":3400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2339\/2475\/files\/grizzly-koala-hero-image-bear-iron.png?v=1790464882","url":"https:\/\/www.thecontractortools.com\/products\/koala-rock-screen","provider":"The Contractor Tools","version":"1.0","type":"link"}