The horizontal pressure steam sterilizer autoclave is designed for efficient disinfection and sterilization of medical, laboratory, and industrial items using saturated steam.
Its structure adopts a horizontal front-loading design, with two heating methods available: electric heating and direct steam heating.
The equipment is composed of a sterilization chamber, jacket, outer shell, safety door system, steam generator, piping system, control system, indication system, and power-supply system, making it a reliable and durable horizontal steam autoclave for multiple industries.
| Model | STH-HK150 | STH-HK200 | STH-HK280 | STH-HK400 | STH-HK500 |
| Volume | 150 Liters | 200 Liters | 280 Liters | 400 Liters | 500 Liters |
| Sterilizing | Ø440*1000mm | Ø515*1000mm | Ø600*1000mm | Ø700*1100mm | Ø700*1300mm |
| Design pressure | 0.3Mpa | ||||
| Design temperature | 150℃ | ||||
| Max. Working pressure | 0.25Mpa | ||||
| Max. Working temperature | 138℃ | ||||
| Time for sterilization | 0~99min | ||||
| Time for drying | 0~99min | ||||
| Heat average | ≤±2℃ | ||||
| Power | 9 KW AC 220/380V, three phase | 12 KW three phase | 18 KW | ||
| Product Dimension (mm) | 1350*600*1520 | 1400*670*1650 | 1400*770*1780 | 1430*880*1830 | 1800*900*1820 |
| Package | 1560*750*1850 | 1560*820*1930 | 1680*920*1950 | 1600*1050*2050 | 1850*1050*2050 |
| Gross Weight/ | 320 kg /278kg | 378 kg /318 kg | 465 kg / 391 kg | 530 kg /456 kg | 627 kg / 540kg |

Automatic sterilization control, easy to operate.
Built-in drying function, suitable for drying dressings and other medical items.
Equipped with over-temperature and over-pressure auto-protection system.
Automatic power cut-off and water cut-off with alarm when water level is too low.
Safety interlock mechanism:
- Door cannot be opened until chamber pressure drops below 0.027 MPa.
- Sterilization process cannot start unless the door is completely closed.
Over-pressure protection:
- When internal pressure exceeds 0.24 MPa, the safety valve opens automatically to release steam into the water tank.
The sterilization chamber is made of high-quality stainless steel 304.

As a professional autoclave manufacturer, we offer factory-direct prices, helping clients reduce procurement costs for medical, lab, and industrial steam sterilizers.
All services are handled by our in-house technicians:
• Fast responses
• Professional after-sales
• Clear and effective communication
We provide:
• Customized horizontal autoclave designs
• Control system customization
• Functional upgrades
• Voltage & door structure modification
• OEM/ODM support
Each unit complies with:
• CE
• ISO 13485
• ISO 9001