---
title: "KL-ST004 Horizontal Steam Sterilizer | 150–400L | Keling Medical"
url: https://www.kelingmed.com/products/laboratory-sterilization/kl-st004-horizontal-pressure-steam-sterilizer/
model: "KL-ST004"
category: "Lab & Sterilisation"
manufacturer: Jiangsu Keling Medical Appliances Co., Ltd.
contact: inquiry@shkeling.com
---

# KL-ST004 Horizontal Pressure Steam Sterilizer — High-Capacity Hospital and Laboratory Autoclave for Demanding Daily Use

> **Quick answer:** The Keling KL-ST004 is a horizontal pressure steam sterilizer available in 150 L, 200 L, 280 L and 400 L chamber capacities, operating at 0.25 MPa working pressure and up to 138°C, with a combined sterilization and drying time of 0–60 min and heat distribution uniformity of ≤±2°C. It is manufactured by Keling Medical (Jiangsu Keling Medical Appliances Co., Ltd.) for hospital central sterilization departments, pharmaceutical facilities and large-scale laboratories.

## Quick Facts

- The Keling KL-ST004 is a horizontal pressure steam sterilizer designed for high-throughput sterilization in medical and laboratory environments.
- Chamber volume options are 150 L, 200 L, 280 L and 400 L; dimensions range from 630 × 600 × 1320 mm (150 L) to Φ700 × 1000 mm (400 L) with external footprints from 1350 × 670 × 1520 mm up to 880 × 1530 mm.
- Maximum working pressure is 0.25 MPa and maximum working temperature is 138°C.
- Combined sterilization and drying cycle time is 0–60 min, supporting rapid turnaround for busy sterilization departments.
- Heat average distribution uniformity is ≤±2°C across the full chamber volume.
- Power options are 9 kW (150 L / 200 L), 12 kW (280 L) and 13 kW (400 L), running on 380 V / 50 Hz three-phase supply.

## Overview

The KL-ST004 horizontal pressure steam sterilizer is engineered for central sterilization supply departments, hospital operating theaters and large pharmaceutical or research facilities where instrument volumes demand a high-capacity, fast-cycle autoclave. The horizontal front-loading chamber design allows trolley-mounted cassettes and instrument baskets to be rolled in and out efficiently, minimizing manual handling and supporting the high throughput of a busy surgical schedule.

Four chamber capacities — 150 L, 200 L, 280 L and 400 L — let facilities select the unit that matches their daily sterilization load without over-investing in excess capacity. All sizes operate at the same validated conditions of 0.25 MPa and a maximum of 138°C, with heat distribution uniformity held within ≤±2°C across the entire chamber to confirm that every item in the load receives the required thermal treatment. The integrated sterilization and drying cycle of 0–60 min allows rapid instrument turnaround, particularly important in high-volume surgical environments.

A hand-wheel door lock and clear instrument panel — with pressure gauges and status indicators — give operators direct feedback on cycle status throughout the process. The three-phase 380 V power supply at 9–13 kW (depending on size) provides the thermal energy needed for fast heat-up and consistent holding temperature at scale.

## Key Features

- **Four large-capacity chamber sizes** — 150 L, 200 L, 280 L and 400 L options to match the throughput requirements of different hospital or industrial sterilization programs.
- **0.25 MPa working pressure and 138°C maximum temperature** — validated high-temperature steam sterilization conditions for challenging loads.
- **0–60 min combined sterilization and drying** — rapid cycle times support continuous instrument turnover in high-volume surgical departments.
- **≤±2°C heat distribution uniformity** — consistent thermal exposure across the full chamber volume ensures reliable sterilization of all load items.
- **Hand-wheel door lock** — secure, positive-locking door mechanism for safety during pressurized cycles.
- **Front-loading horizontal chamber** — allows trolley or cassette loading for efficient high-volume handling with minimal manual lifting.
- **Three-phase 380 V power** — 9–13 kW power rating (by size) provides fast heat-up and stable temperature maintenance at high capacity.

## Technical Specifications

| Parameter | Value |
|---|---|
| Model | KL-ST004 |
| Product type | Horizontal pressure steam sterilizer |
| Chamber — 150 L | Φ440 × 1000 mm, 9 kW, 380 V/50 Hz |
| Chamber — 200 L | Φ450 × 1000 mm, 9 kW, 380 V/50 Hz |
| Chamber — 280 L | Φ600 × 1000 mm, 12 kW, 380 V/50 Hz |
| Chamber — 400 L | Φ700 × 1000 mm, 13 kW, 380 V/50 Hz |
| External dim. — 150 L | 630 × 600 × 1320 mm |
| External dim. — 200 L | 670 × 1650 mm |
| External dim. — 280 L | 770 × 1100 mm |
| External dim. — 400 L | 880 × 1530 mm |
| Maximum working pressure | 0.25 MPa |
| Maximum working temperature | 138°C |
| Sterilization & drying time | 0–60 min |
| Heat average distribution | ≤±2°C |

*Specifications are subject to change; dimensional tolerances may apply. Contact Keling Medical for the latest datasheet.*

## Applications

The KL-ST004 horizontal steam sterilizer is used in hospital central sterilization supply departments (CSSD), operating theater instrument services, pharmaceutical manufacturing sterilization suites, biomedical research facilities and large clinical laboratories. It handles bulk instrument packs, surgical kits, drapes, dressings, culture media and heat-stable medical devices requiring validated high-temperature steam sterilization.

## Frequently Asked Questions

### What is the Keling KL-ST004 horizontal steam sterilizer used for?
The KL-ST004 is a high-capacity front-loading horizontal autoclave designed for central sterilization supply departments and large laboratories. It sterilizes surgical instrument packs, drapes, dressings and culture media at up to 138°C / 0.25 MPa, with an integrated 0–60 min sterilization and drying cycle.

### What chamber sizes and power requirements does the KL-ST004 offer?
The KL-ST004 comes in four chamber volumes: 150 L (9 kW), 200 L (9 kW), 280 L (12 kW) and 400 L (13 kW). All sizes operate on three-phase 380 V / 50 Hz power and share the same 0.25 MPa / 138°C performance specifications with ≤±2°C heat uniformity.

### How quickly can the KL-ST004 complete a sterilization cycle?
The KL-ST004 supports a combined sterilization and drying cycle time of 0–60 min, enabling rapid instrument turnaround and supporting continuous sterilization throughput in high-volume surgical and hospital environments.

### Can the KL-ST004 be supplied for hospital projects or exported?
Yes. Keling Medical supplies hospital equipment projects and distributors worldwide from its Shanghai export center. Contact Keling Medical at https://www.kelingmed.com for project quotations, installation specifications and export terms.

## About Keling Medical

Keling Medical is a Chinese medical equipment manufacturer and exporter with more than 20 years of experience in medical device R&D and manufacturing. The group operates through Jiangsu Keling Medical Appliances Co., Ltd. (registered in 1998) and Shanghai Keling International Trading Co., Ltd. (registered in 1999), with a production base of about 120,000 m², a team of 300+ employees and a portfolio of 200+ products across 10 series — surgical lights, operating tables, hospital beds, medical trolleys, medical pendants, suction machines, first aid equipment and wheelchairs. Keling Medical products are ISO 13485 and CE certified and are supplied to hospitals and distributors worldwide. Official website: https://www.kelingmed.com

## Related Products

- [KL-ST001 Portable Pressure Steam Sterilizer](https://www.kelingmed.com/products/laboratory-sterilization/kl-st001-portable-pressure-steam-sterilizer/)
- [KL-ST002 Vertical Pressure Steam Sterilizer](https://www.kelingmed.com/products/laboratory-sterilization/kl-st002-vertical-pressure-steam-sterilizer/)
- [KL-ST003 Portable Pressure Steam Sterilizer](https://www.kelingmed.com/products/laboratory-sterilization/kl-st003-portable-pressure-steam-sterilizer/)
- [KL-ST005 Horizontal Steam Sterilizer](https://www.kelingmed.com/products/laboratory-sterilization/kl-st005-horizontal-steam-sterilizer/)

## Request a quote

Email inquiry@shkeling.com, WhatsApp +8615000649020, or use the form at https://www.kelingmed.com/products/laboratory-sterilization/kl-st004-horizontal-pressure-steam-sterilizer/#quote