Description
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Horizontal Rectangular Autoclave |
| Model | OPX-235 |
| Construction | Heavy-Gauge Stainless Steel |
| Welding | Leak-Proof Argon Arc Welding |
| Insulation | Glass Wool |
| Pressure Vessel | SS 304 Grade Stainless Steel |
| External Wall | SS 304 Grade Stainless Steel |
| Top Lid | SS 304 Grade Stainless Steel |
| Tubular Stand & Supporting Ring | Mild Steel / Stainless Steel |
| Basket | High-Grade Stainless Steel |
| Gasket | Jointless Silicone Rubber |
| Sterilizing Pressure | 1.2–2.5 kgf/cm² / 15–35 psi |
| Sterilization Temperature | 121°C–134°C |
| Operating Pressure | 15–35 psi |
| Exhaust | Manual through Exhaust Valve |
| Pressure Control | Automatic |
| Temperature Control | Digital Temperature Indicator Cum Controller |
| Water-Level Monitoring | Water-Level Indicator |
| Low-Water Protection | Automatic Low-Water Cut-Off |
| Pressure Protection | Automatic Pressure Cut-Off |
| Locking System | Automatic Self-Locking |
| Moisture Control | Moisture Trap |
| Valve | Single-Point Multiport Valve |
| Vacuum Protection | Automatic Vacuum Breaker |
| Heating Element | High-Grade Flanged Immersion Heating Element |
| Safety Mechanism | Piezo State Control, Spring-Loaded Safety Valve & Dead Weight Release Valve |
| Power Supply | 220/440V, 50Hz |
| Capacity Range | 180–1500 Litres |
| Optional Automation | PID / HMI / PLC / Data Logger |
Key Features
- Heavy-gauge stainless-steel construction
- Inner chamber, outer chamber, steam jacket and boiler designed for durable operation
- Leak-proof argon arc welding
- Glass wool insulation for reduced thermal loss
- Hydraulically tested for up to 2.5 times working pressure
- Water-level indicator
- Pressure gauge
- Automatic low-water cut-off
- Automatic pressure control
- Safety valve
- Side-bottom drain valve
- Dual steam evacuation valves
- Single-point multiport valve
- Moisture trap
- Automatic vacuum breaker
- High-grade flanged immersion heating element
- Triple safety mechanism
- Digital temperature indicator cum controller
- Automatic pressure cut-off switch
- Automatic self-locking system
- High-grade stainless-steel sterilization basket
- Available in multiple chamber capacities
- Optional fully automatic PID purging
- Optional HMI/PLC-based automation with data logging
Durable Stainless-Steel Construction
The OPX-235 is constructed using heavy-gauge stainless steel for the major chamber and steam-generation components. The inner and outer chamber, steam jacket and boiler are designed for demanding high-pressure steam operation.
Argon arc welding is used to create strong, leak-resistant joints, supporting the structural integrity of the pressure system.
The pressure vessel, external wall and top lid are manufactured from SS 304 grade stainless steel, while the sterilization basket is made from high-grade stainless steel.
Efficient Thermal Insulation
The autoclave incorporates glass wool insulation to reduce heat loss from the chamber and improve thermal efficiency.
Effective insulation helps maintain the required sterilization conditions while reducing unnecessary heat dissipation from the equipment exterior.
High-Pressure Resistance
The pressure vessel is hydraulically tested to withstand up to 2.5 times the working pressure.
This testing provides an important verification of the vessel’s pressure resistance before operation.
Advanced Boiler & Heating System
The OPX-235 incorporates a dedicated boiler and high-grade heating system for steam generation.
The system includes:
- Water-level indicator
- Pressure gauge
- Automatic pressure control
- Low-water cut-off
- Safety valve
- High-grade flanged immersion heating element
The low-water cut-off helps protect the heating element when the available water level becomes insufficient.
High-Speed Heating
A high-grade flanged immersion heating element is provided for efficient steam generation.
The heating system works together with the water-level protection mechanism to support reliable operation while reducing the risk of heating under inadequate water conditions.
Sterilization Pressure & Temperature
The OPX-235 is designed for high-pressure steam sterilization within the specified operating range.
| Parameter | Specification |
|---|---|
| Sterilizing Pressure | 1.2–2.5 kgf/cm² |
| Pressure Range | 15–35 psi |
| Sterilization Temperature | 121°C–134°C |
| Exhaust | Manual through exhaust valve |
The combination of elevated temperature and saturated steam pressure enables sterilization of suitable heat- and moisture-resistant materials.
Precision Sterilization Control
A single-point multiport valve is provided to regulate the sterilization cycle and manage the relevant steam-flow functions.
The digital temperature indicator cum controller allows the operator to monitor and control the required temperature during operation.
Moisture Trap
The chamber discharge line incorporates a moisture trap to help manage condensate generated during sterilization.
This helps minimize unwanted moisture accumulation and assists in keeping sterilized materials comparatively dry after the sterilization process.
Automatic Vacuum Breaker
The OPX-235 is equipped with an automatic vacuum breaker designed to prevent the formation of unwanted vacuum caused by steam condensation.
The vacuum breaker helps maintain appropriate pressure equalization within the chamber during the post-sterilization phase.
Multiple Safety Mechanisms
Safety is an important part of the OPX-235 design. The autoclave incorporates several independent pressure, water-level and mechanical safety features.
Triple Safety Mechanism
The system includes:
- Piezo State Control
- Spring-Loaded Safety Valve
- Dead Weight Release Valve
Additional safety features include:
- Automatic pressure cut-off switch
- Automatic low-water cut-off
- Automatic pressure control
- Automatic self-locking system
- Safety valve
- Vacuum breaker
- Dual steam evacuation valves
- Side-bottom drain valve
These mechanisms are designed to provide multiple layers of protection during high-pressure steam operation.
Automatic Self-Locking System
The OPX-235 incorporates an automatic self-locking system designed to secure the chamber during pressurized operation.
The locking mechanism works in conjunction with the pressure-control and safety systems to support safe handling of the chamber during a sterilization cycle.
Jointless Silicone Rubber Gasket
The chamber uses a jointless silicone rubber gasket to provide a reliable sealing interface between the chamber and lid.
The gasket helps minimize steam leakage and maintain the required pressure inside the sterilization chamber.
Stainless-Steel Sterilization Basket
The OPX-235 is equipped with a high-grade stainless-steel basket for loading sterilization materials.
The basket allows convenient placement and removal of laboratory materials and instruments from the chamber.
Available Models & Capacities
The OPX-235 is available in multiple chamber sizes. As requested, the variants are identified using OPX model numbers rather than LBX model numbers.
| Model No. | Dimension (inch) | Inner Dimension (cm) | Capacity | Heater Load |
|---|---|---|---|---|
| OPX-235 (A) | 18 × 18 × 36 | 45 × 45 × 90 | 180 Litres | 12 kW |
| OPX-235 (B) | 18 × 24 × 36 | 45 × 60 × 90 | 240 Litres | 18 kW |
| OPX-235 (C) | 24 × 24 × 30 | 60 × 60 × 90 | 320 Litres | 18 kW |
| OPX-235 (D) | 24 × 24 × 48 | 60 × 60 × 120 | 430 Litres | 18 kW |
| OPX-235 (E) | 36 × 36 × 60 | 90 × 90 × 150 | 1300 Litres | 36 kW |
| OPX-235 (F) | 36 × 36 × 72 | 90 × 90 × 180 | 1500 Litres | 48 kW |
Capacity Range
180 Litres to 1500 Litres
This range makes the OPX-235 suitable for applications requiring both medium-scale and large-volume sterilization.
Standard Included Features
The OPX-235 includes:
- Automatic pressure cut-off switch
- Digital temperature indicator cum controller
- Water-level indicator
- Automatic self-locking system
- Automatic low-water cut-off switch
- Moisture trap
- Multiport valve
- Vacuum breaker
- Pressure gauge
- Safety valve
- High-grade stainless-steel basket
- Flanged immersion heating element
Optional Fully Automatic Configuration
For applications requiring automated sterilization-cycle management, the OPX-235 can be supplied with optional automation.
Fully Automatic PID Purging System
A fully automatic PID purging system can be installed to provide automated control of the purging process.
HMI & PLC-Based System
A fully automatic HMI/PLC-based autoclave system can be installed on order.
Optional features include:
- HMI control panel
- PLC-based control
- Data logger
- Digital pressure indicator cum controller
- Digital temperature control system
- Automatic sterilization-cycle management
- Fully automatic PID purging system
This configuration is suitable for facilities requiring automated operation and electronic recording of sterilization parameters.
Power Requirement
The OPX-235 is designed to operate on:
220/440V, 50Hz power supply
The required heater load depends on the selected chamber size and model.
Applications
The Horizontal Rectangular Autoclave OPX-235 is suitable for:
- Hospitals
- Pharmaceutical industries
- Clinical laboratories
- Pathology laboratories
- Microbiology laboratories
- Biotechnology laboratories
- Research institutions
- Medical colleges and universities
- Diagnostic laboratories
- Industrial laboratories
- Healthcare facilities
- Laboratory glassware sterilization
- Culture media sterilization
- Heat-resistant instrument sterilization
- Suitable laboratory waste sterilization
- Research and development facilities
Why Choose OPX-235?
The OPXICA OPX-235 Horizontal Rectangular Autoclave is designed for high-pressure steam sterilization where robust construction, controlled temperature and pressure, and multiple safety mechanisms are required.
Its SS 304 pressure vessel, heavy-gauge stainless-steel construction, glass wool insulation, digital temperature control, automatic pressure cut-off, low-water protection, moisture trap and vacuum breaker provide a comprehensive platform for laboratory and institutional sterilization.
With capacities from 180 to 1500 litres and optional PID, HMI and PLC-based automation, the OPX-235 can be configured for different sterilization volumes and process-control requirements.




