{"product_id":"trapano-colonna-bernardo-dmt-25-pfv","title":"Bench drilling machine Bernardo DMT 25 PFV – M20 tapping and automatic spindle feed","description":"\u003cp\u003eThe Bernardo DMT 25 PFV is a bench drilling machine for professional use, with 25 mm drilling capacity, tapping up to M 20, stepless speed adjustment from 100 to 3,300 rpm and automatic spindle feed as standard. Bernardo is an Austrian machine tool brand, distributed by Krollit, official Bernardo distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMax drilling capacity: 25 mm\u003c\/li\u003e\n  \u003cli\u003eMax tapping: M 20 with automatic reverse rotation\u003c\/li\u003e\n  \u003cli\u003eSpindle taper: MT 3\u003c\/li\u003e\n  \u003cli\u003eStepless spindle speed: 100–620 \/ 620–3,300 rpm\u003c\/li\u003e\n  \u003cli\u003eAutomatic spindle feed: 0–100 mm\/min\u003c\/li\u003e\n  \u003cli\u003eSpindle stroke: 135 mm\u003c\/li\u003e\n  \u003cli\u003eConcentricity at spindle: ≤ 0.02 mm\u003c\/li\u003e\n  \u003cli\u003eMotor power: 1.1 kW (S1 100%) \/ 400 V three-phase\u003c\/li\u003e\n  \u003cli\u003e252 x 252 mm table with 14 mm T-slots\u003c\/li\u003e\n  \u003cli\u003eWeight: 206 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the DMT 25 PFV and what for\u003c\/h3\u003e\n\u003cp\u003eThe DMT 25 PFV is designed for machine shops and maintenance departments carrying out repetitive drilling and tapping on steel, cast iron and light alloys. The automatic spindle feed, adjustable from 0 to 100 mm\/min, frees the operator during deep batch drilling and keeps cutting pressure constant, extending drill bit life. The tapping device with automatic reverse rotation allows threading up to M 20 directly on the machine, with no subsequent manual tapping. Stepless speed adjustment matches cutting speed to material and diameter without moving belts, a concrete advantage for anyone alternating small diameters at high speed with 20–25 mm holes at low speed.\u003c\/p\u003e\n\u003ch3\u003eKrollit logistics and support\u003c\/h3\u003e\n\u003cp\u003eShipping in 5-9 working days. For machines over 200 kg, ground-floor delivery with tail lift included. Technical support available for the entire life of the product. Original Bernardo spare parts available from the Krollit warehouse, Monteforte Irpino (AV), Italy, tel. +39 0825-1494022.\u003c\/p\u003e\n\u003ch3\u003eWho the DMT 25 PFV is for\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\u003cth\u003eProfile\u003c\/th\u003e\u003cth\u003eSuitability\u003c\/th\u003e\u003cth\u003eReason\u003c\/th\u003e\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\u003ctd\u003eMachine shop with batch drilling\u003c\/td\u003e\u003ctd\u003eSuitable\u003c\/td\u003e\u003ctd\u003eAutomatic feed 0–100 mm\/min and adjustable depth stop for repetitive cycles\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eIndustrial maintenance department\u003c\/td\u003e\u003ctd\u003eSuitable\u003c\/td\u003e\u003ctd\u003eM 20 tapping with automatic reverse and 1.1 kW motor in continuous S1 duty\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eLight steel fabrication\u003c\/td\u003e\u003ctd\u003eSuitable\u003c\/td\u003e\u003ctd\u003e25 mm capacity in steel and table with 14 mm T-slots for workpiece clamping\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eHobbyist with home workshop\u003c\/td\u003e\u003ctd\u003eNot suitable\u003c\/td\u003e\u003ctd\u003e400 V three-phase supply and 206 kg weight exceed the needs and typical installations of hobby use\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e workshops with single-phase 230 V supply only, as the motor requires a 400 V three-phase network, and for milling operations, since the spindle is not designed for radial loads.\u003c\/p\u003e\n\u003ch3\u003eWorking capacity\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n  \u003ctr\u003e\u003ctd\u003eMax drilling capacity\u003c\/td\u003e\u003ctd\u003e25 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eMax tapping\u003c\/td\u003e\u003ctd\u003eM 20\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eSpindle stroke\u003c\/td\u003e\u003ctd\u003e135 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eSpindle feed\u003c\/td\u003e\u003ctd\u003e0–100 mm\/min\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eDrill depth stop\u003c\/td\u003e\u003ctd\u003eAdjustable\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eSpindle and speed\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n  \u003ctr\u003e\u003ctd\u003eSpindle taper\u003c\/td\u003e\u003ctd\u003eMT 3\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eSpindle speed, stepless\u003c\/td\u003e\u003ctd\u003e100–620 \/ 620–3,300 rpm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eConcentricity measured at spindle\u003c\/td\u003e\u003ctd\u003e≤ 0.02 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eDigital speed indication\u003c\/td\u003e\u003ctd\u003eStandard\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eTable and dimensions\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n  \u003ctr\u003e\u003ctd\u003eDistance spindle to column\u003c\/td\u003e\u003ctd\u003e240 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eMax distance spindle to table\u003c\/td\u003e\u003ctd\u003e355 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eDistance spindle to base\u003c\/td\u003e\u003ctd\u003e670 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eColumn diameter\u003c\/td\u003e\u003ctd\u003e85 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eTable size \/ T-slots\u003c\/td\u003e\u003ctd\u003e252 x 252 mm \/ 14 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eWorking surface of base\u003c\/td\u003e\u003ctd\u003e365 x 305 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eMachine dimensions (W x D x H)\u003c\/td\u003e\u003ctd\u003e600 x 840 x 1,280 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eWeight approx.\u003c\/td\u003e\u003ctd\u003e206 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eMotor and power supply\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n  \u003ctr\u003e\u003ctd\u003eMotor power output S1 100%\u003c\/td\u003e\u003ctd\u003e1.1 kW \/ 400 V\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd\u003eMotor power input S6 40%\u003c\/td\u003e\u003ctd\u003e1.5 kW \/ 400 V\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eStandard equipment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDrill chuck 5-20 mm \/ B 22\u003c\/li\u003e\n  \u003cli\u003eDrill chuck arbor MT 3 \/ B 22\u003c\/li\u003e\n  \u003cli\u003eDigital speed indication\u003c\/li\u003e\n  \u003cli\u003eAutomatic spindle feed\u003c\/li\u003e\n  \u003cli\u003eMorse taper reduction sleeve MT 3 \/ MT 2\u003c\/li\u003e\n  \u003cli\u003eThread cutting device\u003c\/li\u003e\n  \u003cli\u003eLED machine light\u003c\/li\u003e\n  \u003cli\u003eHeight-adjustable protective cover in accordance with CE standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes the Bernardo DMT 25 PFV run on single-phase 230 V power?\u003c\/h3\u003e\n\u003cp\u003eNo, the motor requires a 400 V three-phase supply. Power output is 1.1 kW in continuous S1 100% duty and 1.5 kW input in S6 40% duty. Before purchasing, check the availability of a three-phase line in the workshop; for single-phase needs, contact Krollit to evaluate alternative models in the Bernardo range.\u003c\/p\u003e\n\u003ch3\u003eHow does tapping work on the DMT 25 PFV?\u003c\/h3\u003e\n\u003cp\u003eThe tapping device is included as standard and allows threading up to M 20. Automatic reverse rotation withdraws the tap from the hole at the end of the stroke, with no manual intervention. Combined with the adjustable depth stop, the system delivers repeatable tapping even in blind holes.\u003c\/p\u003e\n\u003ch3\u003eWhat is the automatic spindle feed for?\u003c\/h3\u003e\n\u003cp\u003eThe automatic feed, adjustable from 0 to 100 mm\/min, drives the spindle into the workpiece at constant speed without manual action on the levers. The result is uniform cutting pressure, useful for deep 20-25 mm holes and batch work, with less drill bit wear and greater repeatability of hole finish.\u003c\/p\u003e\n\u003ch3\u003eWhat precision does the DMT 25 PFV spindle offer?\u003c\/h3\u003e\n\u003cp\u003eConcentricity measured at the spindle is 0.02 mm or less. This value allows precision drilling and tapping without hole ovalization, a decisive requirement in machining with tight tolerances and when using small-diameter bits at high speed.\u003c\/p\u003e\n\u003ch3\u003eHow is the rotation speed adjusted?\u003c\/h3\u003e\n\u003cp\u003eSpeed is steplessly variable over two ranges, 100–620 rpm and 620–3,300 rpm, with digital indication as standard. There is no need to move belts between pulleys: adjustment is continuous, matching cutting speed to bit diameter and material, from small holes in aluminium to 25 mm holes in steel.\u003c\/p\u003e\n\u003ch3\u003eWhich bits and accessories fit the DMT 25 PFV?\u003c\/h3\u003e\n\u003cp\u003eThe machine has an MT 3 Morse taper spindle and is supplied with a 5-20 mm drill chuck with B 22 mount, MT 3 \/ B 22 chuck arbor and MT 3 \/ MT 2 reduction sleeve. You can therefore use both straight-shank bits in the chuck and MT 3 or MT 2 Morse taper bits and tools mounted directly in the spindle nose.\u003c\/p\u003e\n\u003ch3\u003eHow is a 206 kg machine delivered?\u003c\/h3\u003e\n\u003cp\u003eKrollit ships from the Monteforte Irpino (AV) warehouse, Italy, in 5-9 working days. Above 200 kg, delivery is to ground floor with tail lift included. For installation, provide a bench or stand adequate for the weight and a 400 V three-phase line; technical support is available at +39 0825-1494022.\u003c\/p\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":53468514681160,"sku":"01-11865","price":3035.41,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/trapano-colonna-bernardo-dmt-25-pfv.jpg?v=1783430098","url":"https:\/\/www.krollit.com\/products\/trapano-colonna-bernardo-dmt-25-pfv","provider":"Krollit","version":"1.0","type":"link"}