Visionstar WS-YDA

Five Chamber Capacities

Volumes of 150L, 200L, 280L, 400L and 500L are offered, at 440 by 1000mm through to 700 by 1300mm across the five models in the range.

Automatic Sterilising Course

The sterilising course is described as automatically controlled and easy to operate, so a cycle proceeds without the operator managing each stage of it.

Drying Function

A drying function is fitted and described as suitable for dressing drying, which is what allows wrapped and textile loads to leave the chamber dry.

Door Pressure Interlock

The door opening mechanism cannot be operated until chamber pressure has fallen to 0.027 MPa, and the unit cannot be started if the door is not closed properly.

Safety Valve With Steam Recovery

The safety valve opens automatically when inner pressure exceeds 0.24 MPa, with the steam exhausting back into the water tank rather than into the room.

Low Water Protection

Power is cut off automatically, the water is cut off and an alarm sounds when the machine lacks water, so a dry run is prevented rather than merely signalled.

Shared Operating Parameters

Working pressure is 0.22 MPa and working temperature 134 degrees on every model, with a 0 to 60 minute sterilising and drying time and heat average within plus or minus 2 degrees.

Stainless Chamber and Protection

The chamber of the steriliser is made of stainless steel, with an over temperature and over pressure auto-protect device listed alongside the other protections.

Hospital Sterilising Departments

A 500L chamber processes in a single cycle what a bench unit would take an entire session or more to work through. For a central decontamination unit serving several theatres or a number of clinics, capacity of this order is what allows instrument sets to be turned round on a schedule that the surgical list can actually rely upon, and not one that constrains what the department is able to commit to.

Dressing and Textile Processing

The drying function is described specifically as being suitable for dressing drying, and that matters for textile loads even more than for instruments. A damp dressing pack can draw contamination through its own wrapping as it cools, so drying is what makes a processed pack genuinely ready for storage, and not merely sterilised at the point the cycle happened to end.

Laboratories and Research Institutes

Media, glassware and consumables in any real quantity need a chamber sized for bulk, and not merely for trays. A horizontal cylindrical vessel of 1000mm or more in depth accepts the loading trolleys and bulk containers that no vertical or bench chamber can accommodate, which is usually the practical reason an institute chooses a machine of this configuration of vessel in the very first place.

Veterinary Hospitals and Large Practices

Veterinary work generates bulky drapes, packs and instrument sets in real volume, and very often wrapped. Stainless construction with an automatic door interlock, safety valve and low water protection addresses the reality that a machine of this size will run repeatedly throughout a working day with staff attending to other things entirely.

Capacity a Bench Unit Cannot Reach

The whole case for this range is volume. Between 150L and 500L, these vessels process in a single cycle what would occupy a bench autoclave for hours, and they accept loading arrangements that a small chamber physically cannot take. For any department where instrument turnaround governs how quickly clinical work proceeds, that is not a convenience but the very thing that determines whether the schedule holds.

Protections That Act Rather Than Warn

Each of the three named protections intervenes rather than merely signalling. The door cannot be opened until pressure has fallen, the machine cannot start with the door improperly closed, the safety valve opens on over pressure and power is cut on low water. On a vessel this size, holding this much energy, protections that physically prevent the wrong thing happening are what make the equipment reasonable to operate.

Steam Kept Inside the System

When the safety valve opens, steam exhausts back to the water tank rather than into the room. For a machine of this capacity in an enclosed department, that is a meaningful difference: a discharge of steam from a 500L vessel into a working space is a significant event, and routing it back into the system removes both the hazard and the humidity from the room entirely.

The Visionstar WS-YDA range offers five horizontal cylindrical sterilisers at 150L, 200L, 280L, 400L and 500L, with chambers from 440 by 1000mm to 700 by 1300mm. All five share a working pressure of 0.22 MPa, a working temperature of 134 degrees, a 0 to 60 minute sterilising and drying time and heat average within plus or minus 2 degrees. The sterilising course is automatically controlled, a drying function suitable for dressings is fitted, the door interlocks below 0.027 MPa, the safety valve opens above 0.24 MPa with steam exhausting to the water tank, and low water cuts power and raises an alarm. Weights run from 320kg to 580kg gross.

Two figures warrant deliberate comparison. Heat average is quoted at plus or minus 2 degrees, wider than on the smaller vessels, which is expected across a chamber of this length but should be compared knowingly. Temperature adjustment is listed from 40 degrees, well below any sterilising condition, so what that settable range covers should be established rather than assumed. The electrical specification is not reproduced here, though the power requirement is well beyond a bench unit and the supply will need arranging.

If your department, laboratory or veterinary hospital processes bulk loads or dressings and needs chamber capacity at this scale, speak to Medigear.uk. As a verified medical equipment supplier working across medical, dental, rehabilitation and aquatic therapy settings, the team will confirm which capacity suits your loads and what installation would involve.