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TOPTECH/OPTIMUM Gear Head Drilling 230V/50HZ/1PH with Tapping Function
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Product Characteristics
2026 School Special
- User-friendly membrane keyboard.
- Digital speed display.
- Smooth action thanks to polished multi-tooth carrier.
- Excellent concentricity thanks to hardened and polished main spindle.
- Low-maintenance, grease-lubricated gearbox with PA6 gearwheels.
- Large adjustable speed range.
- Generously dimensioned, height adjustable protective screen with safety switch for greatest possible user protection.
- Adjustable drilling depth stop with millimetre scale.
- Right-handed/left-handed rotation when threading.
- Thread tapping function.
- Machine lamp integrated in drilling head.
- Integrated push-out tool for easy tool changes.
- Drilling table with precision workmanship, diagonal T-slots, circumferential coolant duct.
- Solid baseplate, large dimensions und pronounced ribbing on rear.
- Optional foot pedal available for toggling between clockwise/anticlockwise run and for thread tapping.
- Automatic spindle sleeve feed£¨DH 32GSV).
| Model | DH28GSV |
| Electric connection | 400V 50hz 3ph |
| Total connection | 1.5 kw |
| Drilling capacity in steel (S234JR) | Ø 28 mm |
| Continuous drilling capacity in steel (S235JR) | Ø 25 mm |
| Spindle stroke | 127 mm |
| Spindle seat | MT₃ |
| Throat | 260 mm |
| Spindle speed | 45 - 3200 rmp |
| Numver of speeds | 4 speeds, electronically control |
| Table work surface length x width | 376 x 394 mm |
| T-slot size T | 14 mm, diagonal |
| Distance spindle-table | max, 875 mm |
| Distance spindle - stand | max. 1285 mm |
| Stand work surface length x width | 350 x 356 mm |
| Column diameter | Ø 92 mm |
| Dimension | 890 x 480 x 2070 mm |
| Total weight | 184 / 242 kg |
2026 School Special
What’s Included in Free Servicing
- Routine inspection and functional checks.
- Basic cleaning and adjustment of equipment.
- Minor calibration and safety checks.
- Lubrication where applicable.
- Eligibility: This free servicing programme is applicable only to schools located in Singapore.
- Validity Period: The free servicing is valid for one (1) time only from the date of purchase, as stated on the official invoice.
- Exclusions: Free servicing does not include:
- Replacement of consumable parts (e.g. filters, belts, blades, abrasives, oils, fuses).
- Repairs due to misuse, abuse, negligence, improper operation, or unauthorized modification.
- Damage caused by power surges, accidents, or environmental factors.
- Major repairs, overhaul, or replacement of defective parts.
- Service Request Procedure:Servicing must be arranged by prior appointment.
- Non-Transferability: This free servicing entitlement is non-transferable and applicable only to the specific equipment and purchasing institution.
- Termination of Coverage: The free servicing entitlement will be void if the equipment is serviced or repaired by unauthorized personnel during the coverage period.
- Right to Amend: The supplier reserves the right to amend these terms and conditions with prior notice, where applicable.



