The Bernardo GB 32 STI is a pillar drill for professional use, with speeds of 125 – 3030 rpm / 12, and a weight of 415 kg. Krollit has been an official Bernardo distributor since 2007.
- Drilling capacity in steel: 32 mm
- Drilling capacity in cast iron: 35 mm
- Max. threading: M20
- Drill chuck: 1 – 13 mm / B 16
- Morse taper: MK 4
- Spindle continuous speed / stages: 125 – 3030 rpm / 12
Who uses the GB 32 STI and for what?
Mechanical workshops and metalworking shops use the GB 32 STI for precision drilling on steel and cast iron, tapping, and repetitive work on parts of various sizes.
Its place in the Bernardo range
The Bernardo GB 32 STI is part of Bernardo's range of pillar drills, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performances: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Machine shipping in 5-9 working days (7 days for Southern Italy). For spare parts and accessories, shipping in 3-5 working days from Krollit warehouse. Customer support in Italian available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.
Who is the GB 32 STI for?
The GB 32 STI is recommended for the following professional profiles:
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Mechanical workshops and metalworking: precision drilling on steel and cast iron, tapping.
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Maintenance workers and repair shops: repetitive drilling work on parts of various sizes.
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Occasional hobby use: professional machine; for home use, consider compact bench models.
Working capacity
| Drilling capacity in steel |
32 mm |
| Drilling capacity in cast iron |
35 mm |
| Spindle stroke |
160 mm |
Spindle, tools and speed
| Drill chuck |
1 – 13 mm / B 16 |
| Morse taper |
MK 4 |
| Spindle continuous speed / stages |
125 – 3030 rpm / 12 |
| Max. spindle / table distance |
690 mm |
| Spindle / base plate distance |
1250 mm |
Table, dimensions and geometry
| Arm length |
325 mm |
| Column diameter |
120 mm |
| Table size / T-slot size |
500 x 420 mm / 14 mm |
| Base plate working surface |
365 x 370 mm |
| Approx. weight |
415 kg |
Other specifications
| Max. threading |
M20 |
| Feed range |
0.1 / 0.2 / 0.3 mm/rev |
| Machine dimensions (L x W x H) |
570 x 900 x 2200 mm |
| Motor input power S1 100% |
1.0 / 1.2 kW |
| Motor output power S6 40% |
1.5 / 1.8 kW |
Standard equipment
- Electromagnetic Spindle Feed: offers high working precision, particularly useful in threading operations.
- Drill chuck with gear rim 1 – 13 mm / B 16
- Drill arbor MK 4 / B 16
- Electromagnetic spindle feed
- Height-adjustable protective cover
Frequently Asked Questions
What is the drilling capacity of the GB 32 STI?
See the "Drilling capacity" data in the machine's technical table.
The capacity refers to standard, unhardened steel. On harder materials or alloyed steels, the actual capacity may be lower: reduce speed and feed rate to avoid stressing the spindle and tools.
How is the spindle speed adjusted?
Via mechanical belt or gear change in stepped models, via inverter or variator in Vario models.
Vario models allow continuous adjustment, while stepped models require moving the belt to different pulleys. Correct speed selection based on drill bit diameter and material prolongs tool life.
What spindle taper and type of tools does it support?
See "Spindle taper" in the technical table: typically MT 2, MT 3 or MT 4 depending on the model.
MT (Morse Taper) connections are international standards and accessories (arbors, keyless chucks, reductions) are commonly available on the market. Krollit supplies original Bernardo accessories.
Does the drill allow tapping?
Only models with standard right/left rotation allow tapping with automatic tap release.
Check the "Right/left rotation" or "Threading" specification: drills without mechanical reversal are not suitable for repetitive tapping.
What is the machine's weight and what installation does it require?
The weight varies from approximately 25 kg (compact bench models) to over 250 kg (industrial Profi models).
Bench models are installed on a sturdy workbench, while pillar or radial drills require floor mounting with expansion anchors for stability during drilling.
