Sale on Manual & Electric Hospital Beds - Starting from 25 September!

Home
Shop
Sterilisation & Disinfection
Blackstone WY-400S

✓ Certified Professional Seller

Blackstone Sterilisation & Disinfection

Blackstone WY-400S

Product Code: STDI-SE-3903

Supplies are loaded in the washroom and unloaded inside the clean area.

As the bridge between a wash room and a clean area, the WY-400S sterilises cages, water bottles and glassware in a 400-litre cylindrical chamber and releases them on the protected side of the dividing wall.

Sections

Autoclave

Categories

Sterilisation & Disinfection

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

The WY-400S is Blackstone's 400-litre double-door gravity-displacement steam steriliser for moving sterilised supplies from a preparation area into a protected clean area. Its cylindrical chamber, 620 mm across and 1,320 mm long, sits in a vessel built for −0.1 to 0.3 MPa and 150 °C, with sterilising temperatures between 115 and 138 °C at 0.23 MPa. Steam comes from its own electric generator, up to 25 kg per cycle, on a supply of up to 23 kW, roughly 35 A per phase; water use reaches 45 kg per cycle. S marks the double door.

The second door is the defining feature, and it reorganises who walks where. Staff in the wash room load cages, bottles and glassware, and staff inside the clean area unload them after the cycle. Nobody carries supplies across the barrier, and the protected side never sends anyone out to fetch them. The trade-off is coordination: two teams share one chamber, and the clean side works to the wash room's schedule.

Per the series descriptions, the round chamber has a heat-retaining jacket that supports drying, and each door closes on a geared mechanism with an electric lock. For its horizontal range, the manufacturer also lists pneumatic door seals and an interlock between the two doors. The services are completed by a compressed air line rated 0.4 to 0.7 MPa and a water feed at 0.1 to 0.2 MPa. The enquiry team shares the programme list, the interlock logic and how cycles are started and released from each side.

The cabinet stands 1,760 mm tall and 850 mm wide, and spans 1,495 mm from one door to the other. It is available to buyers in more than 80 countries through Medigear.uk, and the enquiry team provides stock and lead time information.

Barrier and specific-pathogen-free animal facilities, media preparation kitchens supplying clean laboratories, glassware wash-ups feeding clean stores, and research units with controlled rooms are the natural settings for the WY-400S. In each, supplies are prepared on one side of a wall and, already sterilised, needed on the other.

Animal facility practice shows the pattern. A guide to research rodent housing describes equipment entering a barrier room as generally passing through a double-door autoclave or a chemical decontamination chamber. A 2025 account of a specific-pathogen-free facility describes pass-through steam autoclaves in its cage wash area that sterilise everything before it reaches the clean side. Cages, bedding and water bottles run at 121 °C for 21 minutes, and food at 121 °C for 18 minutes. University biosafety rules go further, limiting the exit side of a pass-through to people authorised to be inside.

For a gravity unit, those cycles carry a caution. Cages, racks and glassware suit gravity displacement well; water bottles need a liquids programme; bedding and feed are porous and need careful validation, which is why many facilities process them in vacuum sterilisers. Matching each supply to a proven cycle protects the colony as surely as the wall does.

The workflow payoff is a clean area that never has to send staff out for supplies, and a wash room that never sends its staff in.

Health services and research institutions that buy through formal tenders, the NHS among them, set out workflow and validation needs in their 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.

Supplies Cross, People Stay Put

Loads travel through the wall from the washroom to the clean area. Staff on each side stay put, and the barrier stays closed to supplies.

Each Team Owns One Side

Wash-room staff load and start cycles; clean-side staff unload and put supplies away. Clear ownership makes training and checking straightforward.

No Supply Runs From the Clean Side

The protected area receives what it needs through the steriliser door. Staff inside never have to leave, change and return to collect supplies.

Doors Held Apart by an Interlock

The manufacturer lists an interlock between the two doors for its horizontal range. One door stays shut while the other is open, so the wall never becomes an open passage.

A Long Bore for Racks and Cages

At 1,320 mm long and 620 mm across, the chamber takes racks of cages or bottles on a single trolley. Larger batches mean fewer handovers between the two teams.

Steam Without a Plant Connection

The unit generates its own steam, so no steam main has to reach either room: only power, water, compressed air and a drain cross into the installation.

A Jacket That Keeps Heat In

Per the series descriptions, a jacket around the chamber retains heat and supports drying. Supplies reach the clean side with less moisture to manage.

Readable Controls

The series photograph shows a touch screen with twin gauges and separate start and stop controls. Operators can confirm conditions before handing off a load.

A Figure to Validate Against

The sheet lists uniformity within ±2.0 °C, giving each supply's validated cycle a stated benchmark.

400-Litre Cylindrical Chamber

A 620 mm bore runs 1,320 mm through the chamber from one door to the other.

Double Door, Code S

S signals the second door, which opens into the protected area.

Gravity Displacement

Steam enters from above and pushes cooler air out at the bottom drain, with no pre-vacuum stage.

Built-In Steam Generation

The unit raises to 25 kg of steam per cycle.

Sterilising Range

Programmes run between 115 and 138 °C at a working pressure of 0.23 MPa.

Design Limits

Pressure ratings span −0.1 to 0.3 MPa, and the design temperature is 150 °C.

Uniformity

Chamber temperature varies by no more than ±2.0 °C, according to the sheet.

Water Supply

Water at 0.1 to 0.2 MPa, with up to 45 kg drawn each cycle.

Compressed Air

Air at 0.4 to 0.7 MPa is among the listed services.

Electrical Supply

Up to 23 kW across three phases at 380 V, 50 Hz, five-wire, around 35 A per phase.

Vacuum Figure

A vacuum of −0.086 MPa appears on the sheet, and on a gravity unit it most likely assists drying.

Jacket and Drying

The series jacket around the chamber keeps heat in and supports drying.

Door Mechanism

Each door uses a disc-type gear with an electric lock, according to the series description.

Front Panel

The series photograph shows a touch screen, twin gauges, and separate start and stop controls.

Cabinet Size and Weight

The cabinet measures 1,495 × 850 × 1,760 mm, with a net weight of 710 kg and a gross weight of 820 kg per the Blackstone sheet.

The WY-400S suits barrier animal facilities, media kitchens, glassware wash-ups, and research units that need sterilised supplies delivered through the wall into a protected area, with each team staying on its own side. Wrapped, porous,s and lumened healthcare loads fall outside its scope, and bedding, feed,d and bottled water need validated cycles before they pass through. Before ordering, agree which side starts and releases cycles, plan the wall opening and services, and validate a cycle for each supply type. Medigear.uk lists the WY-400S for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Ask the enquiry team for the interloclogice controaarrangement programme list and electrical rating before ordering.

FAQ

Frequently Asked Questions

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

It splits one job between two teams. Washroom staff load and start cycles, and staff on the protected side unload when the cycle ends, so neither group crosses the barrier during a shift. A guide to research rodent housing notes that equipment entering a barrier room generally comes through a double-door autoclave, and biosafety rules commonly restrict the exit side to people authorised to be in the facility.

Cages, racks, glassware and other solid items suit it well, because steam reaches their surfaces directly. Water bottles are liquids, so they need a liquids programme with load-temperature control; the programme list from the enquiry team shows whether one is offered. Bedding and feed are porous, so gravity cycles for them need careful validation, and many facilities use vacuum sterilisers for those loads.

Normally the wash room starts each cycle, and the clean side releases the load, with the interlock keeping one door shut while the other is open. Where the controls sit on each face, and what each side can see of the cycle's progress, shape how the two teams communicate. The enquiry team sets out the control arrangement and interlock logic with the installation drawing.

The load should go back the way it came, to the wash room for reprocessing, never forward into the clean area. The interlock logic the enquiry team shares shows whether the clean-side door stays locked when a cycle aborts. A written procedure at the facility should say who decides what happens to a failed load.

No; it raises to 25 kg of steam per cycle inside the unit. The Blackstone sheet rates it at up to 23 kW, about 35 A per phase. Another listing for a 400-litre double-door model in the same series gives 20 kW, so the circuit is sized for 23 kW until the enquiry team states the quoted rating.

The cylinder is 620 mm in diameter and 1,320 mm long, about 399 litres by calculation. Two standard 300 × 300 × 600 mm modules fit end to end with 120 mm to spare, and the long bore suits racks of cages or bottles loaded on a single trolley. Basket and trolley details are included in the quotation.

The partition between the wash room and clean area needs an opening for the 850 × 1,760 mm cabinet and a sealing frame that preserves the clean side's integrity and any fire rating. Services are a 23 kW three-phase circuit to BS 7671, water at 0.1 to 0.2 MPa with backflow protection, compressed air and a drain for hot discharge. At 710 kg net on a 1,495 × 850 mm footprint, the floor carries about 560 kg per square metre, and lifting into position is planned under LOLER.

In Great Britain, the Pressure Systems Safety Regulations 2000 bring the vessel, steam generator, and compressed air supply under a written scheme of examination. Each type of supply passed into the clean area needs a validated cycle, checked with biological indicators placed where steam reaches last. Medigear.uk can arrange installation, commissioning and service cover.

A clean area that relies on sterile supplies needs a record for each cycle. The enquiry team sets out how the WY-400S stores or prints cycle data, so the facility can decide whether the clean side can see it before accepting a load.

If it is used for medical devices, the WY-400S 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. In laboratory and animal facility service, it counts as laboratory equipment, and its documentation should then cite EN 61010-1 and EN 61010-2-040 for safety.