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Blackstone WY-300D

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Blackstone Sterilisation & Disinfection

Blackstone WY-300D

Product Code: STDI-SE-3902

Need a gravity steriliser for bulky laboratory loads? The WY-300D pairs a 620 × 995 mm cylindrical chamber with an electric steam supply up to 23 kW and sterilising temperatures from 115 to 138 °C.

Sections

Autoclave

Categories

Sterilisation & Disinfection

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

Blackstone's WY-300D is a 300-litre single-door gravity-displacement steam steriliser designed around a 620 mm cylindrical chamber with its own electric steam supply. The chamber runs 995 mm deep, and the surrounding vessel is designed for −0.1 to 0.3 MPa and 150 °C. Sterilising occurs from 115 to 138 °C at a working pressure of 0.23 MPa. Its electric supply, up to 23 kW or roughly 35 A on each phase, raises as much as 20 kg of steam per cycle, since the sheet lists no external steam pressure. D marks the single door.

The 620 mm bore is the defining feature, and its consequences fall on the building. The 850 mm cabinet that houses it needs a doorway at least as wide, which may rule out standard single doors. Up to 40 kg of water per cycle must arrive at 0.1 to 0.2 MPa and leave through a drain that tolerates hot discharge. A jacketed chamber also releases heat when it is kept hot between cycles, so ventilation and switch-off routines belong in the plan.

According to the series descriptions, a jacket surrounds the round chamber to retain heat and support drying, and an electric lock secures the geared door. On the front panel, a touch screen sits beside twin pressure gauges and separate start and stop controls. Compressed air at 0.4 to 0.7 MPa completes the services. The enquiry team shares the programme list, drying method, basket sizes, and standby settings.

Its cabinet is 1,400 mm long, 850 mm wide and 1,760 mm high. It is available to buyers in more than 80 countries through Medigear.uk, and the enquiry team provides stock and lead time information.

Research and university laboratories, hospital pathology and microbiology departments, pharmaceutical quality control laboratories and teaching facilities with bulky loads are the natural buyers for the WY-300D. Large flasks, carboys, waste containers, glassware racks and media batches fit its 620 mm bore, and unwrapped solid instruments suit its gravity cycle as well.

Laboratory audits show why the building deserves as much attention as the chamber. One measured large autoclave used about 8 kWh and roughly 38 litres of water in a 30-minute gravity cycle at 121 °C, then a further 3 kWh and nearly 8 litres for every idle hour. Energy audits of UK university laboratories found autoclave steam accounted for 18% of the total energy used by one life science laboratory. A US public university case study ranked powering down a steam-jacketed autoclave as the largest per-device energy reduction, at roughly 23,400 kWh a year.

Those figures turn the WY-300D's installation into an estates exercise. The doorway, the electrical circuit, the water feed, a drain that can take hot discharge and ventilation sized for the heat all need agreeing before delivery. Once it is running, a switch-off routine for nights and weekends, full loads and scheduled cycles keep its demands on the building in proportion to the work it does.

Health services that buy through formal tenders, including the NHS, list installation and energy requirements in laboratory equipment specifications, and laboratory 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.

A 620 mm Bore for Bulky Items

The round chamber takes tall flasks, carboys and round waste containers whole. Bulky loads go in without being split across several cycles.

No Steam Main to Install

The unit raises its own steam, so no plant steam line has to reach the laboratory. Installation is a matter of electrical, water, air and drainage connections.

Services Sized From Stated Figures

Steam, water, compressed air and electrical demand are all on the sheet. Estates teams can size each service before the steriliser arrives.

Heat Held in the Jacket

Series descriptions give the chamber a surrounding jacket for heat retention. A warm jacket shortens warm-up for the next cycle in a busy session.

Standby Choices for Energy Plans

The unit can be switched off between sessions, and the enquiry team shares its standby and start-up settings. Laboratories can match their energy use to their working hours.

Water Use Capped per Cycle

The sheet gives water use of up to 40 kg per cycle. You can plan feed and drainage within that limit.

An Electrically Locked Door

Series descriptions describe a disc-type geared door with an electric lock. Closing the door securely does not rely on hand strength.

A Clear Front Panel

A touch screen, twin pressure gauges and separate start and stop controls sit on the front panel. Operators can check conditions before opening the door.

A Stated Figure for Validation

The sheet lists uniformity within ±2.0 °C, giving validation engineers a clear target for waste and media cycles.

300-Litre Cylindrical Chamber

The chamber measures 620 mm in diameter and 995 mm in depth.

Gravity Displacement

Air leaves through the drain as steam fills the chamber from above; no vacuum pulses precede the hold.

Built-In Steam Generation

The unit raises to 20 kg of steam per cycle, with no external steam pressure on the sheet.

Single Door, Code D

D identifies the single door, used for both loading and unloading.

Sterilising Range

Sterilising runs from 115 to 138 °C under a working pressure of 0.23 MPa.

Design Limits

The vessel is designed for −0.1 to 0.3 MPa and 150 °C.

Uniformity

The sheet gives temperature uniformity within ±2.0 °C.

Water Supply

Water at 0.1 to 0.2 MPa, with up to 40 kg used in each cycle.

Compressed Air

The sheet shows a compressed air supply at 0.4 to 0.7 MPa.

Electrical Supply

A 380 V, 50 Hz, three-phase, five-wire supply, with a demand of up to 23 kW and roughly 35 A per phase.

Vacuum Figure

The sheet lists −0.086 MPa, which, in this gravity design, most likely serves the drying stage.

Jacket and Drying

According to the series description, a jacket around the chamber provides heat retention and a drying function.

Door Mechanism

The series description gives the door a disc-type geared structure with an electric lock.

Front Panel

Touch-screen display, two pressure gauges, and start/stop controls.

Cabinet Size and Weight

The cabinet measures 1,400 × 850 × 1,760 mm and weighs 540 kg net and 645 kg gross on the Blackstone sheet.

The WY-300D suits research, hospital, and quality control laboratories with bulky loads such as large flasks, carboys, waste containers, and glassware racks, where a 620 mm bore and self-contained steam earn its place. Wrapped, porous and lumened healthcare loads are outside its scope, as are rooms that cannot provide an 850 mm doorway, a 23 kW circuit, hot-rated drainage and ventilation for the heat. Before ordering, survey the route and the room, size the services and plan a switch-off routine. Medigear.uk lists the WY-300D for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Ask the enquiry team for the programme list, basket sizes, standby settings, and electrical rating before ordering.

FAQ

Frequently Asked Questions

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

Bulky laboratory items are its strength: large flasks and carboys, waste containers, racks of glassware and quantities of culture media, along with unwrapped solid instruments. Its gravity cycle reaches surfaces that steam can touch directly. Wrapped sets, textiles and lumened instruments trap air that gravity cannot reliably clear, so they go to a vacuum steriliser.

The cabinet is 850 mm wide and 1,760 mm high, so the delivery route needs clear openings of at least 850 mm plus a margin for handling, and a single standard door may be too narrow. The crate weighs 645 kg. In place, 540 kg on a 1,400 × 850 mm footprint loads the floor at about 450 kg per square metre, and any lift into position is planned under LOLER.

No building steam is needed, because the unit raises its own, up to 20 kg per cycle. The Blackstone sheet rates it at up to 23 kW from a five-wire three-phase supply at 380 V 50 Hz, roughly 35 A on each phase. Another listing for a 300-litre single-door model in the same series gives 17 kW, so size the circuit for 23 kW, installed to BS 7671, until the enquiry team confirms the quoted rating.

A noticeable amount, even at idle. Jacketed autoclaves are often kept hot between cycles so the next one starts quickly, and that heat ends up in the room, along with steam released when the door opens after a cycle. One measured laboratory autoclave drew 3 kWh for every idle hour. Ventilation, or local extraction above the door, should be designed with that in mind.

Water at 0.1 to 0.2 MPa, up to 40 kg per cycle, behind backflow protection under the water fittings regulations. The drain must accept hot discharge, or the installation needs a way of cooling it first, because many building drainage systems are not designed for near-boiling water. Compressed air at 0.4 to 0.7 MPa is also listed.

Switch it off when no cycles are planned, run full loads, and group work into scheduled sessions. In a case study at a US public university, powering down a steam-jacketed autoclave for 79% of the week averted roughly 23,400 kWh a year, the largest reduction of any single device in the study. The enquiry team shares the standby and start-up settings that make such routines practical.

The cylinder measures 620 mm across and 995 mm deep, about 300 litres by calculation. A standard 300 × 300 × 600 mm module fits within the bore with 395 mm of depth to spare, and the wide diameter suits tall flasks and round waste containers. The enquiry team provides basket sizes with the quotation.

Only with the right programme. Bottled media and other liquids heat and cool slowly. Hence, a liquids cycle tracks the temperature inside a reference bottle, gently vents the chamber, and holds the door shut until the contents have cooled enough to handle safely. The programme list from the enquiry team shows whether the WY-300D offers such a cycle and a load probe.

In Great Britain, a written scheme of examination covers the vessel, the built-in steam generator and the compressed air supply, as the Pressure Systems Safety Regulations 2000 require. Waste and media cycles are validated with biological indicators on real loads, and work with biological agents follows the COSHH risk assessment. Medigear.uk can arrange installation, commissioning and service cover.

The enquiry team sets out how the WY-300D stores and exports cycle data, whether by printer or electronic record. Laboratories that log every waste run should agree the format before the unit goes into service.

If it is used to sterilise medical devices, the WY-300D 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. Used purely for laboratory loads and waste, it is laboratory equipment, and its safety documentation should reference EN 61010-1 and EN 61010-2-040.