Saturated pressure steam sterilization is a reliable, economical, and easy-to-control method that utilizes the heat liberated from condensing steam to sterilize articles. This unit is ideal for clinics, scientific research institutes, and other organizations for sterilizing surgical instruments, fabrics, glassware, and culture media.

Key Features — WS-YDA

Sterilizing course automatic sterilization controlled by computer, easy to operate.
With drying function, suitable dressing drying.
With over-temperature, over-pressure auto-protect device.
The door opening mechanism cannot be operated until the pressure in the chamber is reduced to 0.027MPa.
It can't be started if the door doesn’t close well.
The safety valve will be open automatically when the inner pressure over 0.24MPa, and the steam be exhausting to the water tank.
The power will be cut-off automatically, cut-off the water and alarm when the machine lacking water.
The surface of the sterilizer is steel coated, the chamber of the sterilizer is made of stainless steel.

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Model-specific documentation

Documents for WS-YDA

Check the covered model, language and document status before use. The manual supplied with the actual unit remains the controlling reference.

Product datasheet · English

WS-YDA Horizontal Cylindrical Pressure Steam Sterilizer product datasheet

Public PDF

HQS datasheet for the WS-YDA: product overview, features and the technical specifications published for this model. Confirm the ordered configuration in your quotation.

Product overview
Features
Technical specifications

Covered model: WS-YDA
Length: 2 pages
File: PDF · 314 KB
Web copy prepared: 2026-09-25

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Horizontal Cylindrical Pressure Steam Sterilizer Specifications

Model	WS-400YDA	WS-500YDA
Volume of sterilizing chamber	400L , Φ 660 × 1200mm	500L , Φ 700 × 1300mm
working pressure	0.22MPa	0.22MPa
working temperature	134 ℃	134 ℃
Adjustment of temperature	115 ℃ - 134 ℃	115 ℃ - 134 ℃
Time of sterilization	0 - 60 min	0 - 60 min
Time of drying	0 - 60 min	0 - 60 min
Heat average	≤± 2 ℃	≤± 2 ℃
Power Supply with mains steam	15KW/380V 50Hz	18KW/380V 50Hz
Dimension	1700 × 950 × 1900	1800 × 1050 × 2000
Weight	850/550 KG	950/660 KG

Compare models in this series

Differences below are taken from the specifications published for each model. Confirm the final configuration in your quotation.

This model belongs to the WS-YDB series. The series overview lists every model side by side. Open series overview

Parameter	WS-YDAThis model	WS-YDB	WS-YDC
working pressure	0.22MPa / 0.22MPa	0.22 MPa / 0.22 MPa / 0.22 MPa	0.22 MPa / 0.22 MPa / 0.22 MPa
working temperature	134 ℃ / 134 ℃	134 ℃ / 134 ℃ / 134 ℃	134 ℃ / 134 ℃ / 134 ℃
Adjustment of temperature	115 ℃ - 134 ℃ / 115 ℃ - 134 ℃	40 ℃ - 134 ℃ / 40 ℃ - 134 ℃ / 40 ℃ - 134 ℃	115 ℃ - 134 ℃ / 115 ℃ - 134 ℃ / 115 ℃ - 134 ℃
Time of sterilization	0 - 60 min / 0 - 60 min	0 - 99 min / 0 - 99 min / 0 - 99 min	0 - 60 min / 0 - 60 min / 0 - 60 min
Time of drying	0 - 60 min / 0 - 60 min	0 - 99 min / 0 - 99 min / 0 - 99 min	0 - 60 min / 0 - 60 min / 0 - 60 min
Heat average	≤± 2 ℃ / ≤± 2 ℃	≤± 2 ℃ / ≤± 2 ℃ / ≤± 2 ℃	≤± 2 ℃ / ≤± 2 ℃ / ≤± 2 ℃
Dimension	1700 × 950 × 1900 / 1800 × 1050 × 2000	1520× 910× 1900 / 1400× 750× 1700 / 1400× 650× 1600	1500× 850× 1850 / 1450× 700× 1700 / 1420× 600× 1600
Sterilizing chamber volume	—	280L( φ 600 × 1000mm) / 200L( φ 515 × 1000mm) / 150L( φ 440 × 1000mm)	280L( φ 600 × 1000mm) / 200L( φ 515 × 1000mm) / 150L( φ 480 × 850mm)
Package	—	1680× 1080× 2100 / 1560× 910× 1880 / 1560× 820× 1820	1680× 920× 2100 / 1560× 820× 1850 / 1550× 750× 1850
GW/NW	—	570/462 KG / 436/350 KG / 430/340 KG	700/460 KG / 500/350 KG / 350/280 KG

Warranty and after-sales service for WS-YDA

How HQS handles warranty, spare parts and repairs for this model.

Warranty period: The main-unit warranty varies by model and order. The period that applies is stated in your quotation and order confirmation; please confirm it before purchase.
What is covered: A malfunction caused by a manufacturing or quality defect within the warranty period is repaired free of charge. Consumables and accessories, damage from misuse, and units with an altered or removed serial label are not covered by the main-unit warranty.
Spare parts: Spare parts and technical support are available for at least eight years from the date HQS ships the product.
Response time: Service requests get a first reply within one business day. Please send the serial number, model, main-unit version and a description of the problem.
Repairs in warranty: If a confirmed warranty fault needs a replacement part, HQS ships the part at its own expense, and the faulty part is returned to HQS.
Repairs after warranty: HQS sends a cost-based quotation and proforma invoice first. Repaired parts are tested before they are returned. Technical help by email or phone is free.

Full warranty and service terms →