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Blackstone DGT-23X

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Blackstone Sterilisation & Disinfection

Blackstone DGT-23X

Product Code: STDI-SE-3915

Air is drawn out of the handpiece channels before steam enters.

Air out, steam in, moisture out: that is the Class B sequence the DGT-23X runs for pouched sets, turbines and other handpieces, in a 23-litre chamber 250 mm across and 450 mm deep, drawing 2.2 kW from the mains.

Sections

Autoclave

Categories

Sterilisation & Disinfection

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

Built by Blackstone, the DGT-23X is a 23-litre Class B benchtop steam steriliser for practices that reprocess handpieces, turbines, and pouched sets. A 250 mm bore runs 450 mm deep, giving roughly 22.1 litres of geometric volume, and the unit is rated at 2.2 kW. Rated working conditions in the series rows read 0.22 MPa and 134 °C. The ranges begin at −0.1 MPa design pressure, 116 °C sterilising temperature, 4 minutes sterilising time and 0 minutes drying time.

Vacuum air removal is the defining feature, and its effect is easiest to see inside a handpiece. Before the hold, vacuum phases pull air out of the chamber, the pouches and the narrow channels of each instrument so that steam can reach and heat every surface, including the base of a turbine. After the hold, a vacuum phase dries the load, and pouches leave the chamber ready for storage, with no damp packs to set aside.

Series information places the HS-DGT-X range in Class B. The Blackstone photograph shows a black panel on the right with a display above six round touch buttons, a door with a horizontal handle on the left, and side vents. The voltage of the 50 Hz version, the design temperature, each range's upper limit, programmes and trays come from the enquiry team.

Its cabinet is 640 mm long, 505 mm wide and 450 mm high. Buyers can order it in more than 80 countries through Medigear.uk, and the enquiry team provides stock and lead time.

Dental practices and dental hospitals that reprocess turbines, surgical handpieces and contra-angles, along with oral surgery and implant clinics, are the natural buyers for the DGT-23X. Its Class B cycles also suit pouched instrument sets, hollow instruments and small porous items in a 23-litre chamber.

The case for vacuum rests on what happens inside a handpiece. A 2017 study recorded 140 temperature measurements inside dental handpiece lumens under non-vacuum and vacuum processes. Non-vacuum cycles were slower to bring the inside of the handpiece to 134 °C. The measurement point at the handpiece base failed the standard in all nine runs, while the vacuum process with fractionated pre-vacuum and post-vacuum phases recorded no failures. A companion study using thermometric, chemical, and biological indicators inside handpieces found significant failures under non-vacuum conditions and concluded those processes are unreliable for dental handpieces.

The mechanism explains the result. Air left in a narrow channel insulates it, so the steam never condenses on the surfaces it needs to heat. The vacuum phase before the load removes that air, and the vacuum phase afterwards dries the load so pouches can go into storage.

For the practice, the routine is short: run the daily air removal test, load within limits, follow each handpiece maker's instructions and keep the pouches dry.

Tender specifications, including NHS ones, ask for vacuum processes and hollow-load evidence when handpieces are in scope, and public buyers in other countries do the same. The conformity documentation those procurement routes require is issued by the manufacturer and shared by the enquiry team.

Air Removed Before Steam Arrives

Vacuum phases empty the chamber, the pouches and instrument channels before the hold. Steam then fills the space that air would otherwise block.

Steam Inside Handpiece Channels

With the air gone, steam reaches the narrow internal channels of turbines and contra-angles, including the base where non-vacuum cycles most often fall short.

Drying Under Vacuum

A vacuum phase after the hold removes moisture from the load. Pouches come out dry and can go straight into storage.

Surgical Handpieces Covered

The handpiece type research found most likely to fail without vacuum is exactly the kind of load this class is built to handle.

Daily Proof of Air Removal

A helix or Bowie-Dick test each morning shows the vacuum system is doing its job before patient instruments go in.

Capacity With Depth

A 23-litre chamber, 450 mm deep, fits full pouched sets and longer instruments laid flat.

Stated Working Conditions

The series rows give rated working conditions of 0.22 MPa and 134 °C, which form the basis for validation.

A Vessel Built for Vacuum

With a design pressure range that begins at −0.1 MPa, the vessel is rated for the vacuum phases of every cycle.

Touch Panel and Display

Six touch buttons below a display let staff choose programmes and follow each cycle.

23-Litre Chamber

A 250 mm bore and 450 mm depth give roughly 22.1 litres of geometric volume.

Class B Category

According to series information, the HS-DGT-X range sits in EN 13060 Class B.

Power

Power is rated at 2.2 kW on the Blackstone sheet.

Supply VoltageThe voltage row lists

AC 110 V 60 Hz and a 50 Hz version.

Rated Working Pressure

Rated working pressure is 0.22 MPa.

Rated Working Temperature

Rated working temperature is 134 °C.

Design Pressure

Design pressure starts at −0.1 MPa, and the upper limit is in the quotation.

Sterilising Temperature

Sterilising temperature starts at 116 °C; the upper limit is in the quotation.

Time Ranges

The sterilising time range begins at 4 minutes and the drying time range at 0 minutes.

Control Panel

A display sits above six round touch buttons on a black panel.

Door and Handle

A horizontal handle opens the door on the left of the front face.

Side Vents

The right-hand side panel carries ventilation slots.

Overall Size

Overall dimensions are 640 × 505 × 450 mm (L × W × H).

Weight and Packing

Weights are 51 kg net and 63 kg gross, packed at 750 × 560 × 510 mm.

The DGT-23X suits dental practices, dental hospitals, oral surgery and implant clinics that reprocess turbines, surgical handpieces and contra-angles alongside pouched sets, and that want vacuum air removal and drying in a 23-litre chamber. It is not the right choice for workloads limited to unwrapped solid instruments used the same day, or for benches that cannot accommodate a 640 mm deep cabinet. Before ordering, check the bench depth, the circuit and the lifting plan, and set up the daily air removal test. Medigear.uk lists the DGT-23X for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Ask the enquiry team for the 50 Hz voltage rating, the programme and test list, the range limits and the EN 13060 evidence before ordering.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

By removing the air first. Repeated vacuum phases empty the chamber, pouches, and internal channels, and steam then flows into the space the air left. As it condenses on each surface, it releases heat, bringing the inside of the instrument up to temperature for the hold.

Trapped air insulates the surfaces it covers, so they lag behind the chamber temperature. In a study that took 140 temperature measurements inside dental handpiece lumens, non-vacuum cycles took longer to reach 134 °C and the handpiece base failed to meet the standard in every one of nine runs. No failures were recorded with vacuum cycles using fractionated pre-vacuum and post-vacuum phases.

Wet pouches can draw contamination through the packaging and should not be stored. The post-vacuum phase removes moisture from the load, so pouches leave the chamber dry. The drying time range begins at 0 minutes, and the upper limit is listed in the programme.

Turbines and other high-speed handpieces, surgical handpieces and contra-angles, along with any hollow instrument and pouched set. Research on non-vacuum cycles found the surgical handpiece most likely to fail, which is why the vacuum class matters most for these. Follow each handpiece manufacturer's cleaning, lubrication, and sterilisation instructions.

A helix or Bowie-Dick test device runs through the steriliser's test cycle at the start of each day, with an automatic control check, before any patient instruments are processed. Periodic tests then follow the decontamination guidance for the setting. The DGT-23X's test programmes are listed on the programme sheet from the enquiry team.

From the series rows, rated working conditions are 0.22 MPa and 134 °C. Each range has a stated lower limit: −0.1 MPa design pressure, 116 °C sterilising temperature, 4 minutes sterilising time and 0 minutes drying time. The design temperature and the upper limits are part of the information the enquiry team shares.

The cabinet needs 640 × 505 mm and stands 450 mm high, so a standard 600 mm worktop leaves a 40 mm overhang; plan a deeper bench or a support that takes the full base. Keep the side vents clear. At 51 kg, the unit exceeds the HSE guideline for a two-person lift, so use a lifting aid or a trolley at bench height.

Its 2.2 kW rating means about 10 A at 230 V. The voltage row lists AC 110 V 60 Hz and a 50 Hz version, so ask the enquiry team for the 50 Hz unit's rating to match UK mains, and have an electrician check the circuit under BS 7671.

EN 13060, the standard for small steam sterilisers, in which Class B is the vacuum class and type testing includes hollow-load performance. Ask for the manufacturer's Class B test results before ordering, then validate the installed unit and test it periodically under guidance such as HTM 01-05 for English dental practice.

The Pressure Systems Safety Regulations 2000 in Great Britain treat the steriliser as a pressure system, so a competent person must prepare its written scheme of examination. Training falls under PUWER, electrical work under BS 7671, and delivery under the Manual Handling Operations Regulations 1992. Medigear.uk can arrange installation, commissioning and service cover.

The DGT-23X is typically Class IIa under UK MDR 2002, or higher depending on use, as stated on the manufacturer's declaration of conformity, which the enquiry team shares. The declaration names the legal manufacturer and should refer to EN 13060 together with EN 61010-1 and EN 61010-2-040.