{"product_id":"bernardo-carotatrici-md-9875-vd","title":"Bernardo MD 9875 VD Magnetic Core Drilling Machine – Ø 98 mm × 75 mm, variable speed (Variable Drive), 2180 W motor, weight 17.5 kg","description":"\u003cp\u003eThe Bernardo MD 9875 VD variable drive magnetic drilling machine offers core drilling capacities up to Ø 98 mm with a maximum depth of 75 mm, twist drill capacity up to Ø 28 mm, drill head travel of 180 mm, continuous speed adjustment from 100 – 340 rpm to adapt to core drilling, reaming, boring, MT 3 spindle taper with 19 mm Weldon adapter for professional tools, automatic internal lubrication with integrated tank, electromagnet with 17,000 N adhesive force, 2180 W 230V single-phase motor. Weight 17.5 kg, machine dimensions 250 × 320 × 500 mm. Suitable for metalworking, machine construction, automotive sector, construction site, and workshop work. Manufactured in Austria, distributed in Italy by Krollit as an official Bernardo distributor since 2007.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore drilling capacity:\u003c\/strong\u003e Ø 98 mm × 75 mm depth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax twist drill:\u003c\/strong\u003e Ø 28 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead travel:\u003c\/strong\u003e 180 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle speed:\u003c\/strong\u003e 100 – 340 rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnet adhesive force:\u003c\/strong\u003e 17,000 N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e 2180 W – 230V single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 17.5 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho uses the MD 9875 VD and for what\u003c\/h3\u003e\n\u003cp\u003eThe Bernardo MD 9875 VD is a portable magnetic drilling machine sized for mechanical workshops, metal fabrication shops, and construction sites. Continuously variable speed 100 – 340 rpm: the 'VD' in the name stands for 'Variable Drive', the electronic system that allows selecting the optimal speed for each tool-material combination. For hard steels, low speeds (100-200 rpm), for standard steels 300-500 rpm, for soft materials, higher speeds. A useful feature in workshops with a variety of processes and materials. The electromagnet with 17,000 N adhesive force ensures secure fastening on steel structures even in vertical or overhead positions, with a safety belt\/chain included as standard. The automatic internal lubrication system delivers coolant directly to the tool through the spindle, significantly extending the life of core drills (expensive consumables) and improving hole quality. The 17.5 kg weight and compact dimensions (250 × 320 × 500 mm) make it portable to the construction site in a case or plastic container, without the need for a pallet jack or crane. In Krollit customer workshops, the MD 9875 VD is chosen by metal fabricators, automotive workshops, steel structure manufacturers, industrial maintainers, and site installers.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Bernardo range\u003c\/h3\u003e\n\u003cp\u003eThe Bernardo magnetic drilling machine range is organized by core drilling capacity (max diameter and depth) and drive type. The range includes 10 models divided into 3 families:\n\nE Family (fixed speed): MD 3550 E (Ø 35 mm), MD 3850 (Ø 38 mm), MD 4055 (Ø 40 mm), MD 5050 E (Ø 50 mm). Suitable for workshops with repetitive standard processing on known materials.\n\nVD Family (Variable Digital Speed): MD 3550 VD (Ø 35 mm), MD 5050 VD (Ø 50 mm), MD 6050 VD (Ø 60 mm), MD 9875 VD (Ø 98 mm). Continuously adjustable speed for material adaptation, suitable for workshops with a variety of processes.\n\nM Family (multi-gear\/multifunction): MD 5075 with 2 gears (Ø 50 mm × 75 mm depth), TPC 1000 multifunction with tapping up to M18.\n\nTop of the Bernardo drilling machine range: Ø 98 mm × 75 mm depth capacity, MT 3 taper (larger than MT 2), 2,180 W motor (the most powerful in the range). Reduced speeds 100-340 rpm for maximum torque on large diameters. For workshops with large capacity core drilling needs on heavy structures.\u003c\/p\u003e\n\u003ch3\u003eKrollit logistics and support\u003c\/h3\u003e\n\u003cp\u003eBernardo shipping in 5-9 working days (7 days to the South). With a weight of 17.5 kg, it is shipped in a case\/plastic container and can be easily handled by one person, even on-site. Weldon 19 mm core drills, chucks, adapters, and original Bernardo spare parts available from stock with 3-5 working day shipping. Italian customer support available.\u003c\/p\u003e\n\n\u003ch3\u003eWho is the MD 9875 VD for\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003cth\u003eReason\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassionate hobbyist\u003c\/td\u003e\n\u003ctd\u003eSuitable\u003c\/td\u003e\n\u003ctd\u003eFor advanced use on variable materials. The VD costs more than the E version but handles more types of processing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkshop with a variety of materials\u003c\/td\u003e\n\u003ctd\u003eRecommended\u003c\/td\u003e\n\u003ctd\u003eVariable speed 100 – 340 rpm allows finding the optimal value for each material (mild steels, hardened steels, aluminum, special alloys).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial maintenance \/ installer\u003c\/td\u003e\n\u003ctd\u003eRecommended\u003c\/td\u003e\n\u003ctd\u003eSuitable for contexts where the processing material changes frequently. Fine speed adjustment significantly extends the life of core drills.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e tapping operations (the TPC 1000 multifunction is the correctly sized choice); non-magnetic structures (aluminum, non-magnetic stainless steel): the electromagnet does not adhere; continuous industrial use at high cadence (magnetic drilling machines are sized for intermittent use).\u003c\/p\u003e\n\n\u003ch3\u003eWorking capacity\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax core drilling diameter\u003c\/td\u003e\n\u003ctd\u003eØ 98 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax core drilling depth\u003c\/td\u003e\n\u003ctd\u003e75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax twist drill diameter\u003c\/td\u003e\n\u003ctd\u003eØ 28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrill head travel\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSpeed and tool holder\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle speed\u003c\/td\u003e\n\u003ctd\u003e100 – 340 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle taper\u003c\/td\u003e\n\u003ctd\u003eMT 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeldon adapter\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeldon - base distance\u003c\/td\u003e\n\u003ctd\u003e110 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle - base distance\u003c\/td\u003e\n\u003ctd\u003e210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMagnetic base\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnetic adhesion force\u003c\/td\u003e\n\u003ctd\u003e17,000 N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnetic base dimensions\u003c\/td\u003e\n\u003ctd\u003e202 × 105 × 45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMotor and power supply\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power\u003c\/td\u003e\n\u003ctd\u003e2180 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003eSingle-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eDimensions and weight\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine dimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e250 × 320 × 500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 17.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompliance\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarking\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eStandard equipment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBernardo MD 9875 VD magnetic drilling machine\u003c\/li\u003e\n\u003cli\u003ePlastic transport container\u003c\/li\u003e\n\u003cli\u003eCoolant tank\u003c\/li\u003e\n\u003cli\u003eMT 3 \/ Weldon 19 mm adapter with internal cooling\u003c\/li\u003e\n\u003cli\u003eSpirit level\u003c\/li\u003e\n\u003cli\u003eSafety belt\/chain for vertical and overhead use\u003c\/li\u003e\n\u003cli\u003eUser manual in Italian\u003c\/li\u003e\n\u003cli\u003eSet of service tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat materials does the MD 9875 VD electromagnet work on?\u003c\/summary\u003e\n\u003cp\u003eOnly on magnetic ferrous materials: structural steel, iron, carbon steels. It does not work on aluminum, non-magnetic stainless steel, non-ferrous materials.\u003c\/p\u003e\n\u003cp\u003eThe electromagnet creates the magnetic field that fastens the machine to the structure: without ferrous material, fastening is impossible. For working on aluminum or non-magnetic stainless steel, fixed column drills or dedicated mechanical fastening systems are needed. For most standard metal structures (fabrication, frames, profiles), the electromagnet is the fastest and most reliable fastening system.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eCan I use the drilling machine in a vertical or overhead position?\u003c\/summary\u003e\n\u003cp\u003eYes, with the included safety belt\/chain. The 17,000 N magnetic force is sized for fastening in any position, but safety always requires an additional mechanical restraint.\u003c\/p\u003e\n\u003cp\u003eThe electromagnet holds the machine even during momentary power interruptions for the seconds needed to prevent drops, but in case of a prolonged interruption (torn cable, blackout), the safety belt\/chain is the only reliable system. Standard safety procedures ALWAYS require mechanical restraint in addition to the electric magnet, regardless of the nominal adhesion force.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eHow does the automatic internal lubrication system work?\u003c\/summary\u003e\n\u003cp\u003eThe coolant (oil-water emulsion or dedicated metalworking oil) starts from an integrated tank and is delivered directly to the center of the tool through an internal channel. It works in any position (even overhead) via gravity or pressure.\u003c\/p\u003e\n\u003cp\u003eInternal lubrication significantly extends the life of core drills (expensive consumable components) by reducing friction and dissipating heat. Without lubrication, drills last 30-50 holes; with internal lubrication, 100-200 holes. The coolant fluid is not included, it is available from standard industrial suppliers.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs the Weldon 19 mm adapter a universal standard?\u003c\/summary\u003e\n\u003cp\u003eYes. The Weldon 19 mm is the international standard for core drills: most commercial drills (Karnasch, Magbohrer, Rotabroach, BDS, etc.) use this adapter. All drills have a 19 mm Weldon shank for quick fastening via a side set screw.\u003c\/p\u003e\n\u003cp\u003eFor workshops with drills of other brands or standards, adapters can be used. For future investments, Weldon 19 mm is the most common choice with the widest market offering. Original Bernardo drills come with a 19 mm Weldon adapter and are available from stock with 3-5 working day shipping.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eHow much power does the motor consume during intermittent use?\u003c\/summary\u003e\n\u003cp\u003eThe 2180 W motor typically consumes 2.2-2.4 kWh per effective hour of work. In intermittent craft use (1-2 minutes per hole, pauses between holes), average consumption is 0.3-0.5 kWh\/hour.\u003c\/p\u003e\n\u003cp\u003eThe motor only runs during hole cutting: it is off between holes. For workshops with significant electricity costs, consumption is negligible. The drilling machine is an electrically efficient machine: nominal power is only engaged during actual processing minutes. For intensive continuous use, a standard industrial meter is recommended.\u003c\/p\u003e\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50693486674248,"sku":"01-1385","price":1236.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Bernardo_Carotatrice_magnetica_MD_9875_VD_compatta_e_potente.jpg?v=1758038385","url":"https:\/\/www.krollit.com\/products\/bernardo-core-drills-md-9875-vd","provider":"Krollit","version":"1.0","type":"link"}