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Blackstone E423

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Blackstone Sterilisation & Disinfection

Blackstone E423

Product Code: STDI-SE-3719

HS-STE-E Class N Benchtop Steriliser Combining a 250 by 450 mm Chamber With a 1 to 60 Minute Drying Stage, Programmes at 121 °C and 134 °C, Automatic Discharge, 1500 VA and 37 kg

The Blackstone E423 is a 23-litre autoclave with drying in the HS-STE-E range, designed for Class N cycles for unwrapped solid instruments. Its chamber, 250 mm across and 450 mm deep, sterilises at 121 °C or 134 °C, then dries the load for a set period of 1 to 60 minutes. The unit is rated at 1500 VA and weighs 37 kg. Available through Medigear.uk.

Sections

Autoclave

Categories

Sterilisation & Disinfection

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

Of the four HS-STE-E models without the extended Dry+ stage, the E423 combines the larger chamber with a drying phase. It has a round chamber 250 mm wide and 450 mm long, about 22 litres by calculation against a 23-litre label, and it offers the usual two programmes. One holds 121 °C for 30 to 60 minutes, the other 134 °C for 10 to 20 minutes, with chamber pressures of 1.1 and 2.1 bar respectively. After the hold, the load can be dried for up to 60 minutes, a stage that can be shortened to a single minute.

Drying earns its place most on a large chamber. A full 23 litre load carries noticeably more metal than an 18 litre one, and wiping every instrument dry after each run takes real staff time. The drying stage can take over much of that work. Blackstone does not describe how it dries, however, and whether 60 minutes leaves a full load dry on the same 1500 VA rating as the smaller models is something to confirm. Drying does not widen the Class N scope either, so the E423 stays limited to unwrapped solid instruments.

At 37 kg before any water, it is also the heaviest of the four. With a 615 mm deep body needing 10 cm behind it and a 450 mm height needing 10 cm above, it wants roughly 715 mm of bench depth and 550 mm of headroom.

Neither the width, which is illegible on the drawing, nor the tray sizes, reservoir or recording options are given. Medigear.uk is gathering those details from Blackstone before supplying this 23-litre autoclave with drying.

A busy clinic choosing Blackstone's 23-litre autoclave with drying typically processes a high daily volume of unwrapped solid instruments and wants them to come out dry. Multi-surgery dental practices and podiatry services are common examples. Examination sets, restorative instruments, forceps, scalers and nail nippers all fall within the Class N scope. Handpieces, lumened items, pouched sets, and textiles do not, no matter what the drying stage achieves.

The drying time should be settled with real loads. Because the chamber is larger, the right setting for a full set of trays may differ from what suits an 18 litre unit. The best way to find it is to run representative loads during validation, then inspect hinges, box joints, and tray surfaces. Drying is one of the performance requirements in EN 13060, so ask Blackstone for test results that include it. Wipe instruments still damp at the end with disposable, lint-free cloths, and the HTM 01-05 limits on storing unwrapped and post-wrapped instruments still apply.

Planning the room matters as much as choosing the model. The unit needs a bench deep and strong enough for 37 kg plus water, about 550 mm of clear height from wall cupboards, a nearby 13 amp socket, and a daily supply of distilled or RO water. UK duties are unchanged, from the pressure-vessel examination required by the Pressure Systems Safety Regulations 2000 to daily automatic control testing and cycle-by-cycle records.

Medigear.uk is obtaining the drying method, cycle times and width from Blackstone to support that planning.

Largest Chamber With Drying

It pairs the 23-litre chamber with a drying stage, a combination for high-volume unwrapped work without Dry+.

Dry Loads From a Full Chamber

A drying stage of up to 60 minutes spares staff from wiping a full chamber of instruments by hand.

Adjustable Drying

The stage can be shortened to as little as one minute once validation shows what a typical load needs.

Two Programmes With Adjustable Holds

The 121 °C and 134 °C holds can be extended when local policy asks for longer.

Automatic Discharge

Marked as standard on the sheet, subject to confirmation of what it covers.

Single Socket Operation

At 1500 VA, one UK 13 amp socket powers the unit.

Planned Clearances

The drawing sets 10 cm behind, beside and above, so the full installed envelope can be worked out in advance.

Simple Daily Testing

Because it is non-vacuum, it is spared the steam penetration test, leaving the automatic control test as the daily check.

Chamber Volume

23 litres labelled; about 22.1 litres calculated.

Chamber Size

Φ250 × 450 mm.

Drying

1 to 60 minutes.

Dry+

Not fitted.

Programmes

121 °C and 134 °C.

Bench Depth Needed

About 715 mm.

Clear Height Needed

About 550 mm.

Net Weight

37 kg.

The E423, the 23-litre autoclave with drying that Blackstone builds on the HS-STE-E platform, suits practices that process many unwrapped solid instruments and prefer not to dry every load by hand. It comes with trade-offs in time and space: long cycles at the default drying setting, a deep bench, generous headroom and 37 kg to lift. It remains a Class N unit, so pouches and handpieces belong in a vacuum steriliser. Blackstone still needs to explain how it dries and how long a complete cycle runs, confirm the width and provide EN 13060 test evidence. Medigear.uk will pass those answers to the practice once they arrive.

FAQ

Frequently Asked Questions

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

A Class N benchtop autoclave from Blackstone's HS-STE-E series, with a 23-litre chamber and a drying stage. It sterilises unwrapped solid instruments with steam at either 121 °C or 134 °C, then offers up to 60 minutes of drying before the door is opened.

The sheet cannot say, because it gives neither the drying method nor a dryness result. A 23 litre load carries more metal and more condensate than a smaller one, so the setting should be proven with the practice's own full trays during validation, and you should request test evidence from Blackstone.

No. Its drying stage removes moisture after the hold, but a Class N cycle does not draw air out of pouches or lumens, which those loads require. They need a vacuum steriliser validated for the purpose.

Roughly 715 mm depth and 550 mm clear height, including 10 cm clearances behind and above, plus space at the hinge side for the door. The drawing's width value is illegible in the copy supplied, so the complete footprint is still to be confirmed.

At 37 kg net, it requires a two-person lift, and the bench beneath it must support that plus the water in the system. Neither the gross weight nor the carton size is given for delivery planning.

With default settings, the hold and drying stages come to 70 minutes at 134 °C and 90 minutes at 121 °C. Heat-up and discharge are extra and unpublished, and a larger chamber heated by the same 1500 VA may take longer to warm up, so total times are worth obtaining before sessions are planned.

Blackstone does not state the reservoir size or the water quality it expects. The water should be freshly distilled or RO water, changed every day, as UK guidance sets out. The 1500 VA rating means roughly 6.5 A on UK mains, which one 13 amp socket supplies without difficulty.

Confirm the drying method and a full-load dryness result, total cycle times, width and side-foot spacing, tray sizes, reservoir capacity, any cycle recording, and the door safety devices. Test reports against EN 13060, the UKCA or CE position, carton size, warranty and delivery timescale should also be requested.