{"product_id":"smerigliatrice-doppia-ds-250-s","title":"Bernardo Double Grinder DS 250 S","description":"\u003cp\u003e\u003cstrong\u003eBernardo Double Grinder DS 250 S – K36\/K80 grinding wheels, 400 V\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBernardo Double Grinder DS 250 S\u003c\/strong\u003e is a high-performance professional bench grinder, ideal for roughing, sharpening, and finishing tools and metal parts. It features two Ø250 mm grinding wheels: a \u003cstrong\u003eK36 for roughing\u003c\/strong\u003e and a \u003cstrong\u003eK80 for finishing\u003c\/strong\u003e, allowing for both fast material removal and precision work. With a rotational speed of \u003cstrong\u003e2850 rpm\u003c\/strong\u003e and a \u003cstrong\u003e1.5 kW (S1) \/ 2.0 kW (S6)\u003c\/strong\u003e three-phase motor at 400 V, it ensures constant power even for intensive use. Equipped with \u003cstrong\u003espark guards on both sides and adjustable workpiece supports\u003c\/strong\u003e, it guarantees safety and stability during operation. Thanks to its robust dimensions (510 × 320 × 360 mm) and weight of 30 kg, the DS 250 S proves to be stable and reliable, perfect for professional workshops and laboratories.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eMain features:\u003c\/strong\u003e\u003cbr\u003eGrinding wheel Ø250 × 32 mm – grits K36 (roughing) and K80 (finishing)\u003cbr\u003eGrinding wheel bore: 32 mm\u003cbr\u003eSpeed: 2850 rpm\u003cbr\u003eMotor 1.5 kW (S1) \/ 2.0 kW (S6) – 400 V\u003cbr\u003eSpark guards on both sides\u003cbr\u003eAdjustable workpiece supports\u003cbr\u003eRobust benchtop design\u003cbr\u003eDimensions: 510 × 320 × 360 mm\u003cbr\u003eWeight: 30 kg\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\n\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBernardo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDS 250 S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding wheel\u003c\/td\u003e\n\u003ctd\u003eØ250 × 32 mm – K36\/K80 grits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding wheel bore\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed\u003c\/td\u003e\n\u003ctd\u003e2850 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power S1 (100%)\u003c\/td\u003e\n\u003ctd\u003e1.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power S6 (40%)\u003c\/td\u003e\n\u003ctd\u003e2.0 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e400 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine dimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e510 × 320 × 360 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e30 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\n\u003chr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eStandard equipment\u003c\/h3\u003e\u003cbr\u003eGrinding wheel Ø250 mm K36 (roughing)\u003cbr\u003eGrinding wheel Ø250 mm K80 (finishing)\u003cbr\u003eSpark guards (both sides)\u003cbr\u003eAdjustable workpiece support\n\n\u003ch3\u003eLogistics\u003c\/h3\u003e\n\u003cp\u003eBernardo shipping: 5–9 business days (7 days to the South). Original spare parts available with 3–5 business day shipping. Customer support in Italian available.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do you choose the grit of the grinding wheels for the Bernardo Double Grinder DS 2?\u003c\/summary\u003e\n\u003cp\u003eFor roughing and removing a lot of material: coarse grit grinding wheel (36–60). For sharpening tools and precision work: medium grit grinding wheel (80–120). For finishing and polishing: fine grit grinding wheel (150–220) or felt disc. The Bernardo Double Grinder DS 2 uses Ø 250 mm grinding wheels — check the correct format before purchasing spare parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow often should grinding wheels be balanced?\u003c\/summary\u003e\n\u003cp\u003eNew grinding wheels should always be checked before installation (ring test — clear sound = intact wheel). Periodic dressing with a grinding wheel dresser maintains the correct shape and reduces vibrations. A misaligned or out-of-shape grinding wheel can cause excessive vibrations and risks to the operator.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan the Bernardo Double Grinder DS 2 mount a leather or felt disc for polishing?\u003c\/summary\u003e\n\u003cp\u003eYes. Most Bernardo double grinders can mount Ø 250 mm leather or felt discs on the same shaft as the abrasive grinding wheels — suitable for polishing metals, plastics, and wood. Check shaft compatibility with Krollit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between DS and DSA in the grinder range?\u003c\/summary\u003e\n\u003cp\u003eThe DS series is the standard double grinder with an abrasive grinding wheel on both sides. The DSA series adds integrated dust extraction — essential when working on materials that produce fine dust (aluminum, non-ferrous metals, wood) in enclosed environments. The DSA is quieter and keeps the work environment cleaner.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre spare parts (grinding wheels, supports) available?\u003c\/summary\u003e\n\u003cp\u003eOriginal spare parts available with 3–5 business day shipping. Customer support in Italian available.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50696018526536,"sku":"05-1127","price":357.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Bernardo_DS_250_S_Smerigliatrice_doppia_da_banco_con_mole_K36_K80.jpg?v=1758183480","url":"https:\/\/www.krollit.com\/products\/grinder-doppia-ds-250-s","provider":"Krollit","version":"1.0","type":"link"}