{"product_id":"baumalight-s40-skid-steer-stump-grinder","title":"Baumalight S40 Skid Steer Stump Grinder, S740 or S770 Piston Motor","description":"\u003cp\u003eThe Baumalight S40 uses a bent-axis piston motor and dual hydraulic swing cylinders to move its cutting head across stumps and surface roots. The 85-degree swing supports cutting in both directions while the skid steer stays in place. Both motor configurations include the skid steer mounting adapter.\u003c\/p\u003e\u003cp\u003eA 1¼-inch steel rotor carries 12 H3000 teeth with concave carbide tips. Each tooth has three usable cutting-edge positions; indexing the tooth exposes a fresh edge before replacement. The hinged shield opens for access to the cutting wheel, while two rows of chain curtains help direct chips during grinding.\u003c\/p\u003e\u003cp\u003eSelect the motor to match the carrier’s available flow and pressure. The S740 has a 20–35 GPM selection guide; the S770 extends the charted selection to 25–50 GPM. Both require a case drain. A flow divider balances oil between the rotor and swing cylinders so swing feed can be adjusted to the cutting load.\u003c\/p\u003e\u003ch2\u003eS40 specifications and motor choices\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eS740 motor selection guide\u003c\/th\u003e\n\u003ctd\u003e20–35 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eS770 motor selection guide\u003c\/th\u003e\n\u003ctd\u003e25–50 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMotor design\u003c\/th\u003e\n\u003ctd\u003eBent-axis piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCutting wheel\u003c\/th\u003e\n\u003ctd\u003e24-inch diameter, 1¼-inch steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTeeth\u003c\/th\u003e\n\u003ctd\u003e12 H3000 concave carbide teeth; 3 cutting-edge positions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSwing\u003c\/th\u003e\n\u003ctd\u003eDual hydraulic cylinders; 85-degree arc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum horizontal cut\u003c\/th\u003e\n\u003ctd\u003e22 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMounting adapter\u003c\/th\u003e\n\u003ctd\u003eIncluded; skid steer Quick Attach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eElectrical supply\u003c\/th\u003e\n\u003ctd\u003e12V DC, 10A minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCase drain\u003c\/th\u003e\n\u003ctd\u003eRequired with either motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHydraulic couplers\u003c\/th\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eSend us your skid steer model, hydraulic flow and pressure, electrical connector and case-drain details. We’ll match the motor using Baumalight’s \u003ca href=\"https:\/\/baumalight.com\/product\/stump-grinder\/s40\"\u003eS40 selection chart\u003c\/a\u003e. The \u003ca href=\"https:\/\/baumalight.com\/admin\/open-pdf\/support_pdf\/Owners%20manual%20English\/S40%20OM.pdf\"\u003eS40 operator’s manual\u003c\/a\u003e covers the connections and tooth-indexing system.\u003c\/p\u003e","brand":"Baumalight","offers":[{"title":"S740","offer_id":50925173702875,"sku":null,"price":10331.0,"currency_code":"USD","in_stock":true},{"title":"S770","offer_id":50925173735643,"sku":null,"price":11863.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/4122\/6971\/files\/baumalight-s40-stump-grinder-1.jpg?v=1792888799","url":"https:\/\/shop.keastenterprises.com\/products\/baumalight-s40-skid-steer-stump-grinder","provider":"Keast Enterprises Equipment","version":"1.0","type":"link"}