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Blackstone WF-800SM

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Blackstone Sterilisation & Disinfection

Blackstone WF-800SM

Product Code: STDI-SE-3820

Made for departments that already have steam piped to the room.

Although its chamber holds 800 litres, the WF-800SM relies on site steam at 0.3 to 0.6 MPa for heat, with batches rolling in on a car from the packing side and out through an interlocked door to the sterile side.

Sections

Autoclave

Categories

Sterilisation & Disinfection

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

The WF-800SM is Blackstone's 800-litre double-door pulsating-vacuum steam steriliser for sterile services departments with site steam and separate packing and sterile rooms. Steam at 0.3 to 0.6 MPa, up to 35 kg per cycle, heats a vessel designed for −0.1 to 0.3 MPa and 150 °C. Cycles hold 0.23 MPa within 115 to 138 °C once pulsed evacuation reaches −0.086 MPa. The sheet adds water at 0.1 to 0.2 MPa, up to 200 kg per cycle, and compressed air at 0.4 to 0.7 MPa. S marks the second door, M the pulsating vacuum.

That dependence on site steam is the defining feature, because it decides which departments the unit suits. With steam doing the heating, the Blackstone sheet rates it at up to 5.0 kW. A building without steam would need the optional built-in generator, which series listings put at about 45 kW more. Central and regional services with a boiler house and segregated rooms gain an 800-litre pass-through chamber on a modest electrical load. A small department, or one without steam, is the wrong home for it.

On paper, the 1,450 × 610 × 910 mm chamber (L × W × H) matches twelve standard 300 × 300 × 600 mm modules, two long, two across and three high, before the sterilisation car takes its share. Series listings supply that car and a loading car. The manufacturer describes electrically locked geared doors, pneumatic seals, a double-door interlock and a verification port. The enquiry team shares the usable module count, the loading cars supplied for two rooms, programme times and the interlock logic.

Door to door,r the cabinet runs 1,700 mm, and it is 1,310 mm wide and 1,900 mm high. Medigear. UK offers it to buyers in more than 80 countries, and the enquiry team provides stock and lead times.

Central sterile services departments, off-site decontamination hubs, contract decontamination providers and large teaching hospitals are the buyers an 800-litre pass-through chamber is built for. Wrapped instrument trays, rigid containers, orthopaedic implant sets, surgical textiles and lumened instruments all suit its pulsed-vacuum cycles, and the 1,450 mm chamber takes long sets laid flat on the cart.

The scale is real in practice. NHS England guidance notes that decontamination is delivered on hospital sites, off site, or by contractors at central hubs, and that providers may also serve other acute hospitals, community dental units, diagnostic centres and GP surgeries. One NHS department processes for 24 theatres, four peripheral hospitals, 70 GP surgeries and 26 health centres. Another trust replaced two departments with a single facility handling almost half a million items a year, staffed by around 54 people.

Where a service of that size already has boiler plant, the WF-800SM fits well: steam does the heating,g and the electrical load stays small. A smaller department would leave much of the chamber empty, and a site without steam would have to plan the generator option and its electrical supply from the outset. Volumes like these also justify the floor space a pass-through installation takes on both sides of the wall.

Health services buying through formal tenders, the NHS among them, look for EN 285 test evidence and a validation route at this scale, and public buyers elsewhere require much the same. The conformity documentation those procurement routes require is issued by the manufacturer and shared by the enquiry team.

A Natural Fit for Sites With a Steam Plant

Site steam provides the heat, so the Blackstone sheet rates the unit at only 5.0 kW. Departments with an existing boiler house add an 800-litre chamber without a matching electrical upgrade.

Scale for a Regional Service

Twelve modules fit the chamber on paper, before the car takes its share. A service supplying several hospitals can move large batches through each cycle.

Pass-Through Separation of Zones

Loads enter from the packing room and leave into the sterile store. Each team keeps to its own side, and processed loads never travel back through the packing area.

Car Loading on Both Sides

Batches roll in on a sterilisation car from a loading car and roll out the same way on the sterile side. Trays are handled at bench height, away from the hot chamber.

Room for Long Sets and Implant Trays

At 1,450 mm, the chamber takes long instrument sets and implant trays laid flat. Sets that would otherwise be split can travel as one load.

Interlocked, Electrically Locked Doors

The manufacturer describes geared doors with electric locks, pneumatic seals and a double-door interlock. One side stays shut while the other is open, keeping the zones apart.

Air Removal for Wrapped and Hollow Loads

Pulsed evacuation to −0.086 MPa draws air from wrapped packs, textiles and lumens before steam admission. The inner layers of each pack then reach sterilising conditions.

Batch Records for Traceability

Series listings describe report processing and traceability for every cycle. A regional service can follow each batch from its packing bench to the hospital that receives it.

Planning Figures Stated per Cycle

The sheet lists steam, water, and compressed air demand per cycle. Estateteams can check boiler capacity, water feed, a nd drainage before the partition is opened.

800-Litre Chamber

The chamber measures 1,450 mm long, 610 mm wide and 910 mm high.

Sterilisation Car and Loading Car

Series listings pair every WF model of 600 litres or more with a sterilisation car, which enters the chamber, and a loading car for moving it.

Double Door, Code S

S marks the sterile-side door, through which every completed batch leaves.

Pulsating Vacuum, Code M

M marks the vacuum pulses that take the chamber to −0.086 MPa before sterilising.

Sterilising Conditions

Cycles run at 0.23 MPa, with temperatures between 115 and 138 °C, spanning 121 °C and 134 °C programmes.

Vessel Limits

Pressure ratings run from −0.1 to 0.3 MPa, with a design temperature of 150 °C.

Temperature Uniformity

The sheet specifies uniformity within ±2.0 °C across the chamber, checked during thermometric validation.

Steam Connection

External steam at 0.3 to 0.6 MPa, with up to 35 kg used per cycle.

Water Connection

Water at 0.1 to 0.2 MPa, up to 200 kg per cycle on the Blackstone sheet and 220 kg in series listings.

Compressed Air

A 0.4 to 0.7 MPa supply feeds the pneumatic door seals.

Electrical Rating

Up to 5.0 kW on the Blackstone sheet, from a three-phase five-wire AC 380 V 50 Hz supply; series listings add about 45 kW for the optional generator.

Door Hardware

Disc-type geared doors with electric locks and pneumatic seals, interlocked so only one opens at a time, in the manufacturer's description.

Touch-Screen Control

The manufacturer lists an HMI touch screen for programme selection and parameter setting.

Verification Interface

A standard equipment verification interface provides a connection for validation sensors.

Optional Steam Generator

A built-in generator is available as an option in series listings, for sites without suitable steam.

Cabinet Size and Weight

The cabinet measures 1,700 × 1,310 × 1,900 mm and weighs 1,465 kg net and 1,650 kg gross on the Blackstone sheet.

The WF-800SM suits central and regional sterile services, off-site hubs, and large hospital departments with site steam, segregated packing and sterile rooms, and the volume to fill an 800-litre chamber. It is not the right choice for single-room decontamination, low volumes, or buildings without steam that are not prepared for the generator's extra electrical load. Before ordering, confirm boiler capacity for 35 kg per cycle, the wall opening and floor loading, and space for a loading car in each room. Medigear.uk lists the WF-800SM for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Ask the enquiry team for the electrical rating of the quoted configuration, the loading cars supplied, the usable module count, the interlock logic and the EN 285 evidence before ordering.

FAQ

Frequently Asked Questions

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

It suits central and regional sterile services, off-site decontamination hubs and large hospital departments that already have site steam, separate packing and sterile rooms, and enough work to fill an 800-litre chamber across several shifts. It is the wrong choice for single-room decontamination, low daily volumes, and buildings without steam unless you plan for the generator option and its extra electrical load. Sites that cannot take a 1,650 kg crate or a 1,310 × 1,900 mm wall opening should rule it out early.

The Blackstone sheet says it delivers up to 5.0 kW on a three-phase, five-wire, 380 V, 50 Hz supply, which is roughly 8 A per phase. Series listings list the same model's power as 3.5 kW for the system, plus about 45 kW for an optional built-in steam generator, so that a generator-equipped unit would need around 50 kW, about 76 A per phase. The enquiry team shares the rating of the quoted configuration, and the circuit is then sized to BS 7671.

Site steam at 0.3 to 0.6 MPa, with up to 35 kg drawn in each cycle, so the boiler plant, steam main and condensate return all need capacity for the peak. Steam quality is checked at validation against EN 285, which sets limits for non-condensable gases, superheat and dryness. The installation drawing for the quoted unit shows how steam is piped in.

Water at 0.1 to 0.2 MPa behind backflow protection. The Blackstone sheet gives up to 200 kg per cycle, and the series lists 220 kg, so plan the feed and drain for 220 kg, with the drain rated for hot discharge. Compressed air at 0.4 to 0.7 MPa serves the pneumatic door seals.

The chamber is 1,450 mm long, 610 mm wide and 910 mm high. Two standard modules fit along its length with 250 mm spare, two across and three high with about 10 mm of clearance, twelve in all on paper. The sterilisation car occupies part of that space, and the enquiry team provides the usable count with the quotation.

Staff fill the sterilisation car in the packing room, dock the loading car at the non-sterile door and roll the batch in. After a completed cycle, the car leaves through the sterile-side door onto a loading car in the sterile store, where the load can cool. The enquiry team includes how many loading cars come with a double-door unit in the quotation.

The cabinet sits in the partition between the packing room and sterile store, so the opening must accommodate its 1,310 × 1,900 mm cross-section plus a sealing frame, while maintaining the wall's fire rating. The 1,465 kg net weight, spread over a 1,700 × 1,310 mm footprint, loads the floor at roughly 660 kg per square metre without water, so a structural engineer should assess it. Moving a 1,650 kg crate into position is a lifting operation that a competent person plans under LOLER.

Class B is an EN 13060 grade, and that standard stops below 60 litres, at chambers that cannot take a sterilisation module. An 800-litre chamber falls under EN 285 for large steam sterilisers. The required documents are the manufacturer's EN 285 test results, with validation planned to EN ISO 17665.

Under the Pressure Systems Safety Regulations 2000 in Great Britain, the chamber, door safety devices and steam and air supplies are examined to a written scheme prepared by a competent person. Validation and periodic tests, from Bowie-Dick and air leakage to steam quality, follow the English HTM 01-01 Part C or its Scottish equivalent, SHTM 01-01 Part C. Medigear.uk can arrange installation, commissioning and service cover.

Traceable cycle reports appear in series listings, tying each batch on the car to its programme and parameters. The record format, which shows how data will reach the department's tracking system, is part of the programme information the enquiry team shares.

The WF-800SM 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. It identifies the legal manufacturer and, for an 800-litre pass-through unit, should cite EN 285 together with EN 61010-1 and EN 61010-2-040.