{"product_id":"trapano-colonna-bernardo-gb28s-vario","title":"Bernardo GB 28 S Vario Pedestal Drill","description":"\u003cp\u003eThe Bernardo GB 28 S Vario is a professional pillar drill with a drilling capacity of 28 mm, speeds of 90 – 980 \/ 1000 – 3000 rpm, a 1.5 kW \/ 400 V motor, and a weight of approx. 265 kg. Krollit, official Bernardo distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. drilling capacity: 28 mm\u003c\/li\u003e\n\u003cli\u003eMax. threading capacity: M16\u003c\/li\u003e\n\u003cli\u003eChuck: 1 – 13 mm \/ B16\u003c\/li\u003e\n\u003cli\u003eSpindle taper: MT 3\u003c\/li\u003e\n\u003cli\u003eSpindle speed \/ 2 stages: 90 – 980 \/ 1000 – 3000 rpm\u003c\/li\u003e\n\u003cli\u003eSpindle-column distance: 250 mm\u003c\/li\u003e\n\u003cli\u003eMax. spindle-table distance: 780 mm\u003c\/li\u003e\n\u003cli\u003eSpindle-base distance: 1210 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the GB 28 S Vario and for what\u003c\/h3\u003e\n\u003cp\u003eMechanical workshops and metalworking shops use the GB 28 S Vario for precision drilling on steel and cast iron, threading with a tapping head, and repetitive work on pieces of various sizes.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Bernardo range\u003c\/h3\u003e\n\u003cp\u003eThe Bernardo GB 28 S Vario is part of the Bernardo pillar drill range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the machine suitable for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for assistance with selection.\u003c\/p\u003e\n\u003ch3\u003eKrollit logistics and support\u003c\/h3\u003e\n\u003cp\u003eMachine shipping in 5-9 working days (7 days to Southern Italy). For spare parts and accessories, shipping in 3-5 working days from Krollit warehouse. Italian customer support available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.\u003c\/p\u003e\n\u003ch3\u003eWho the GB 28 S Vario is for\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003cth\u003eReason\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical workshops and metalworking shops\u003c\/td\u003e\n\u003ctd\u003eSuitable\u003c\/td\u003e\n\u003ctd\u003ePrecision drilling on steel and cast iron, threading with a tapping head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaintenance workers and repair shops\u003c\/td\u003e\n\u003ctd\u003eSuitable\u003c\/td\u003e\n\u003ctd\u003eRepetitive drilling on pieces of various sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOccasional hobby use\u003c\/td\u003e\n\u003ctd\u003eTo be evaluated\u003c\/td\u003e\n\u003ctd\u003eProfessional machine: for home use, consider compact benchtop models\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 applications that go beyond the technical specifications declared by the manufacturer. For doubts about compatibility, contact Krollit customer service.\u003c\/p\u003e\n\u003ch3\u003eMachining capacity\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. drilling capacity\u003c\/td\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. threading capacity\u003c\/td\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSpindle and speed\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChuck\u003c\/td\u003e\n\u003ctd\u003e1 – 13 mm \/ B16\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\u003eSpindle speed \/ 2 stages\u003c\/td\u003e\n\u003ctd\u003e90 – 980 \/ 1000 – 3000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle-column distance\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. spindle-table distance\u003c\/td\u003e\n\u003ctd\u003e780 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle-base distance\u003c\/td\u003e\n\u003ctd\u003e1210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle stroke\u003c\/td\u003e\n\u003ctd\u003e135 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTable and dimensions\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eColumn diameter\u003c\/td\u003e\n\u003ctd\u003e98 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTable dimensions \/ T-slots\u003c\/td\u003e\n\u003ctd\u003e375 x 375 mm \/ 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine dimensions (L x W x H)\u003c\/td\u003e\n\u003ctd\u003e540 x 790 x 2130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMotor and power supply\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power S1 100%\u003c\/td\u003e\n\u003ctd\u003e1.5 kW \/ 400 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power S6 40%\u003c\/td\u003e\n\u003ctd\u003e2.2 kW \/ 400 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOther specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsable base plate\u003c\/td\u003e\n\u003ctd\u003e420 x 340 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 265 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the drilling capacity of the GB 28 S Vario?\u003c\/summary\u003e\n\u003cp\u003eSee the \"Drilling capacity\" data in the machine's technical table.\u003c\/p\u003e\n\u003cp\u003eThe capacity refers to standard unhardened steel. On harder materials or alloys, the actual capacity may be lower: reduce speed and feed to avoid stressing the spindle and tools.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is the spindle speed adjusted?\u003c\/summary\u003e\n\u003cp\u003eVia mechanical belt or gear change in step models, via inverter or variator in Vario models.\u003c\/p\u003e\n\u003cp\u003eVario models allow continuous adjustment, while step models require moving the belt to different pulleys. Correct speed selection based on drill bit diameter and material extends tool life.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat spindle taper and type of tools does it support?\u003c\/summary\u003e\n\u003cp\u003eSee \"Spindle taper\" in the technical table: typically MT 2, MT 3 or MT 4 depending on the model.\u003c\/p\u003e\n\u003cp\u003eMT (Morse Taper) connections are international standards and accessories (arbors, keyless chucks, reductions) are commonly available on the market. Krollit supplies original Bernardo accessories.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the drill allow threading with a tapping head?\u003c\/summary\u003e\n\u003cp\u003eOnly models with standard right\/left rotation allow threading with automatic tap release.\u003c\/p\u003e\n\u003cp\u003eCheck the \"Right\/left rotation\" or \"Threading\" specification: drills without mechanical reversal are not suitable for repetitive tapping.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the weight of the machine and what installation does it require?\u003c\/summary\u003e\n\u003cp\u003eThe weight varies from about 25 kg (compact benchtop models) to over 250 kg (industrial Profi models).\u003c\/p\u003e\n\u003cp\u003eBenchtop models are installed on a sturdy workbench, while pillar or radial models require floor mounting with expansion anchors for stability during drilling.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50697630843208,"sku":"01-1288","price":3936.13,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Bernardo_GB_28_S_Vario_Trapano_a_colonna_Vario_compatto_con_velocit_variabile.png?v=1757517895","url":"https:\/\/www.krollit.com\/products\/drill-colonna-bernardo-gb28s-vario","provider":"Krollit","version":"1.0","type":"link"}