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Concrete Curing Autoclaves

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Concrete Curing Autoclaves
Concrete Curing Autoclaves

We design and fabricate unique autoclaves for curing concrete masonry to exact customer requirements. Although each concrete curing autoclave is distinctive, we apply proven techniques to address typical issues such as corrosion, thermal expansion, control system temperature feedback, and debris collection in condensate lines. Economical microprocessor based controls, overhead counterweight doors, and proprietary safety door options are some features of our concrete curing autoclaves.

From large, high production units to lab size autoclaves, we handle different types of requirements. Using our patented Harris quick opening doors in such autoclaves prevents the door from opening under high pressures. These doors come with safety interlocks that comply with stringent OSHA standards.

From designing the autoclave system to on-field installation, complete assistance is provided by our engineering staff. With extensive knowledge and fabricating abilities that ensure reliable autoclave operation, we have successfully completed and verified various standard autoclave designs. Our design and manufacturing operations comply with section VIII, division 1 of the ASME boiler and pressure vessel code.

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Concrete Clave #2
Concrete Clave #2
Concrete Clave #3
Concrete Clave #3
Asahi Autoclave
Asahi Autoclave

PDFConcrete Autoclave Brochure (PDF - 412KB)

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Concrete Curing Autoclaves Specifications

Autoclave Specifications

Equipment Capabilities Concrete Curing
Pressurizing Medium Air
Heating Methods Electric
Standard Features
  • Encapsulated blower motor eliminates the high maintenance necessary for through the vessel shaft sealing.
  • Proprietary blower motor design allows operation at any combination of pressure and temperature.
  • Engineered circulating fan assures excellent heat transfer to the load and exceptional temperature uniformity.
  • Proprietary method of placing and securing insulation minimizes heat loss through the pressure vessel and minimizes operating costs.
  • Location of typical electrical heating unit is shielded by cooling coil to prevent radiant heating of load.
  • Cooling coil is a single pass heat exchanger designed for precise temperature control with ample provisions for thermal expansion to minimize thermally induced stresses and failure.
  • "Man-Inside" emergency alarm cables are provided on larger autoclaves, which allows operator to completely disable all autoclave sub-systems. It requires autoclave door to be opened to reset the alarm.
  • Load track and floor is designed to allow for thermal expansion yet provide full structural support.
  • ASME approved safety relief valve and rupture disc are provided on separate vessel penetrations to assure independent and safe operation. Many other redundant safeties are incorporated to assure operator and equipment protection.
  • Most vessel penetrations, such as vacuum, thermocouple and cooling are built into removable and replaceable ANSI flanges. This allows easy modification or repairs without compromising the structural integrity of the vessel.
Harris Quick Opening Door Features
  • This proprietary breech lock door allows full and easy access to the autoclave interior within one minute after completion of a curing cycle.
  • Safety is inherent in its design, but we also include mechanical, hydraulic, electrical, and pneumatic interlocks to prevent door operation while the autoclave is pressurized.
  • No relative motion of the door with respect to the pressure seal provides long o-ring life.
  • An oxygen sensor/fresh air purge safety interlock is available to prevent opening the door unless safe levels of oxygen are present. This complies with recent OSHA rulings.

Instrumentation Options

Control Capabilities Multiple Equipment Computer Control Monitoring
Recording with Backup
Control Options
Manual Controls
Network Compatible Computer-Based Control Systems
Programmable Microprocessor-Based Controls Systems
Set Point Controls
Recording Options
Circular Chart
Data Logger Recorder
Strip Chart
Vacuum Control Types Automatic
Vacuum Monitoring Options Gauges

Auxiliary Systems

Options Available
Vacuum Pump/ System
Lift Tables
Load Carts
External Cooling System
Bridge Mechanism
Oxygen Sensor/Air Purge/Safety Interlocks
Process Controls Piping
Related Safety Equipment
Cooling Systems Cooling Towers
Steam Separators
Storage Tanks
Safety Features
'Operator-Inside' Alarms
Blower Motor Cooling Alarms
Door Safety Interlocks
Over-Pressure and Over-Temperature Protection Options


Analysis of Equipment
Design and Engineering
Non-Destructive Field Testing
Training for New Systems
Support Services Complete Turnkey Installation
Freight On Board (FOB) Factory Services
On Site Start-Up/Operation/Maintenance Training

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Melco Steel, Inc. | Autoclave Process System | Designers • Engineers • Fabricators