Econoclave EC5X12

Econoclave® Model: EC5X12

  • The Econoclave is an energy efficient EC5X12 Econoclave
  • The Econoclave is an energy efficient EC5X12 Econoclave
  • The Econoclave is an energy efficient EC5X12 Econoclave

The Econoclave ® 5X12 is a great composite autoclave for small to medium-sized production parts.   It provides a useable diameter of 60” (1524 mm) and a working length of 144” (3657 mm). You can choose from standard models which provide maximum operating temperatures of 450°F (232°C) and 800°F (427 °C) and maximum operating pressures of 150 psi and 200 psi.    

Note: If you require higher operating conditions, ASC can configure a non-standard model.

  • The working diameter is 60” (1524 mm) with a working length of 144” (3657 mm). 
  • Aerospace-grade autoclave, designed for composite bonding and curing.
  • Fully-integrated and 100% factory tested prior to shipping.  A skid-mounted control system, power system, vacuum system, cooling tank (optional), and other auxiliaries are plumbed, wired, and tested at ASC’s factory.
  • Pressure vessel designed to stringent ASME Division I, Section VIII requirements.
  • Hydraulically operated quick-opening door using ASC’s all-forged, 3-piece ring technology and multi-redundant door locking safety system provides mechanical, pneumatic, and electrical interlock.
  • CPC (Composite Processing Control) system, the most popular controls package in the world for composite curing.
  • Econoclave ® eco-friendly design results in a smaller vessel and 20% energy and nitrogen savings versus a conventional autoclave.
  • High-capacity circulation fan for high airspeeds, improved temperature uniformity, and excellent heat-transfer to part and tooling loads.
  • Front and rear H-Slot ® flow adjustment technology for superior flow and temperature uniformity.  
  • A high-capacity modular heater designed with sheathed Inconel heating elements for long life.
  • Internal stainless-steel cooling exchanger for excellent cooling performance. 
  • Control valve package for pressure, cooling, and vacuum control.  Featuring stainless-steel control valves, proportional actuation, and high reliability.
  • High-capacity vacuum source lines with PC-controlled Vacuum/Vent valves for automated selection, isolation, and leak-testing.   
    • Each line includes a manual isolation valve and resin filter traps with a manual drain.
    • Stainless-steel tubing 
  • Vacuum probe lines for vacuum bag monitoring
  • Stainless-steel tubing 
  • Vacuum transducer for accurate bag vacuum recording and alarming.
  • Proprietary sheet metal retaining requiring no fasteners, screws, or rivets to create future FOD issues.
Interior DimensionsSpecificationsSee Notes ( Show all / Hide all )

Interior Dimensions


See Notes

  • Working diameter (excluding floor)
  • Working length (front of floor to rear H-slot panel)
  • Floor to Ceiling (at the vertical position, +/- 12mm)
  • Shop floor to Autoclave floor
  • 60” (1524 mm)
  • 144” (3658 mm)
  • 48” (1219 mm)
  • 23⅛” (587 mm)
Exterior Dimensions (with integrated skid)  
  • Overall width with the door closed
  • Overall width with the door open
  • Overall length with the door closed
  • Overall length with the door open
  • Overall height
  • 98” (2486 mm)
  • 115 ½” (2921 mm)
  • 268” (6807 mm)
  • 325 ¾” (8261 mm)
  • 86” (2184 mm)
  • Note 1,2,3
  • Note 1,2,3
  • Note 1,3
  • Note 1,3
  • Note 1
Temperature Capability  
  • Maximum interior working temperature
  • Maximum heating rate (average air)
  • Maximum cooling rate (average air)
  • Thermal load during the test
  • Temperature uniformity at steady state
  • External shell temperature at a maximum temperature
  • 450°F (232°C)
  • 10 °F/min (5.5 °C/min)
  • 10 °F/min (5.5 °C/min)
  • 1200 lbs (544 kg) steel)
  • +/- 5 °F (+/- 2.8 °C)
  • <140° (60 °C)
  • Note 7
  • Note 8
  • Note 9
  • Note 10
Pressure Capability  
  • Maximum normal working pressure
  • Maximum vessel design pressure (MAWP)
  • Maximum pressurization rate (average)
  • Maximum depressurization rate (average)
  • 150 psig (10.3 bar)
  • 165 psig (11.3 bar)
  • 10 psi/min ( .69 bar/min)
  • 10 psi/min ( .69 bar/min)
  • Note 11
  • Note 12
  • Note 12
  • Pressure vessel fabrication
  • Door closure
  • ASME or option PED, carbon steel
  • Quick-opening, Hydraulic
  • Note 5
Interior fabrication 
  • Internal insulation
  • Sheet metal
  • Sheet metal retention
  • Rail type and max loading
  • Floor loading
  • 4” ceramic fiber
  • 18 GA Aluminized steel
  • Screw-less capture system
  • Inverted angle, 2,000 lbs (907 kg) on 4 wheels
  • 500 lbs (227 kg)
Air-circulation System 
  • Fan Motor
  • Air Velocity
  • H-Slot ® Flow Adjustment System
  • 30HP (22.3kw)
  • 250 ft/min (76 m/min)
  • Front and Rear
Heating System 
  • Heater
  • Heating Control
  • Electric, 87 KW, 1 bank, Inconel sheathed
  • Proportional SSR with backup contactor
Cooling System 
  • Cooling coil
  • Main cooling valve
  • Trim and air valves
  • Coil drain system
  • Multi-row 5/8” finned tubing, stainless-steel
  • 1” (25mm), solenoid-actuated
  • ½” (12mm), solenoid-actuated
  • Air-assisted coil purge
Pressurization System 
  • Pressure transducer
  • Pressure gauge
  • Inlet valve
  • Exhaust valve
  • Silencer
  • Manual exhaust valve
  • 0-200 psig, ¼% FS accuracy
  • At the door, 4-½” dial, 0-200 psig, ¼% accuracy
  • 1” (25mm), electro-pneumatic
  • 1” (12mm), electro-pneumatic
  • Yes
  • ½”
  • Vacuum Source Line Quantity
  • Vacuum Source Line Size
  • Computer-controlled valves on each line
  • Resin filter trap
  • Vacuum Probe Line Quantity
  • Vacuum Probe Line Size
  • 5
  • ½” npt
  • VAC and VENT
  • Yes
  • 5
  • ¼" npt
  • Note 15
  • Note 15
  • Thermocouple type
  • Air temperature thermocouples
  • Part temperature thermocouples
  • Hi-Limit safety thermocouple
  • J or K
  • 1
  • 10
  • 1
  • Note 15
  • Note 15,16
  • Note 15
Control System 
  • Primary Controller
  • Control Software
  • PLC and control hardware
  • Report Printer
  • Electrical enclosures
  • PC enclosure
  • Computer, Dell Optiplex
  • CPC - Composite Processing Control
  • Allen Bradley CompactLogix
  • HP Color Deskjet 6940 (or Equiv)
  • One, Nema-12, housing control and power
  • None. PC on a customer provided shelf.
Power System 
  • Primary power
  • Control power
  • Full load amps
  • 480V / 3PH / 60Hz
  • 120V / 1PH / 60Hz
  • 120A
  • Note 17
  • Note 17
  • Note 13
  • Approximate shipping weight
  • 18,000 lbs. or 8,165 kg

VS - Vessel design and construction code

Although many countries accept the ASME Division I, Section VIII pressure vessel standard, there are cases where an alternate pressure vessel code will be required. In these cases, there will be additional costs that are required for authorized inspection services.

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PW - Power, voltage, frequency selection

Although the standard Econoclave autoclave is designed for 480 volt / 3phase service and 120 volt control power, we can design it to accommodate any international voltage and frequency requirement.

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CL - Cooling system options

The autoclave utilizes water for auxiliary cooling requirements (ie. fan motor capsule) and for main cooling requirements. Some customers prefer to utilize their own water delivery system, however the majority of Econoclave buyers prefer that ASC provide an integrated cooling system for the equipment.

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VP - Vacuum pumps

While some customers prefer to use in-house vacuum systems to supply vacuum to the Econoclave, most prefer that a dedicated pump or pumps be provided on the Econoclave skid.

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VR - Controlled vacuum receiver system

Many composite applications require full vacuum during and or at the beginning of the cure cycle. In these cases, there is little need to control the level of the vacuum to the parts. However, for high-temperature polyimids and honeycomb reinforced parts, there is often the need to provide partial vacuum (ie. -10"Hg) to the parts. In these cases you will need to have a controlled vacuum receiver.

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VT - VacTrap ™ chilled resin traps

For composite curing applications with high volatile content (ie. high-temperature polyimides), we recommend chilled VacTrap ™ assemblies instead of the conventional ambient temperature filter traps. The VacTrap will be much more effective condensing volatiles and solvents during high-temperature curing operations.

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PG - Purge system with oxygen monitoring

Most composite autoclaves utilize nitrogen as the pressurization media. After a cure cycle, there is a need to purge the nitrogen from the autoclave and bring in fresh breathable air prior to allowing personnel to enter the autoclave.

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CT - Floor and autoclave carts

ASC manufactures a wide variety of carts for autoclaves and oven applications.

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BG - Pit transfer bridge

For large autoclaves that are mounted in pits, you will need to purchase a bridge system which spans from the shop floor to the autoclave. (see photo above).

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TR - Transportation of Econoclave to your facility

Although many customers arrange and procure their own transportation, ASC can quote transportation of your Econoclave from ASC’s plant to your facility.

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RG - Offload and Rigging of the Econoclave at your facility

Many customers prefer to handle rigging with their preferred local contractors, however on turnkey projects and on larger Econoclave deliveries, customers often select the ASC rigging option in order to provide a sole-source responsibility for the effort.

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IN - Installation of the Econoclave at your facility

While Econoclaves are easy to install, most customers still prefer that ASC install the autoclave at their facility. There are a couple of installation options that you might want to consider.

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ST- Startup and training by an ASC field engineer

This option provides all costs for an ASC field engineer to travel to your facility to perform startup of the equipment/control system and training of your personnel. The option includes all costs of on-site engineering labor, air fare, travel time, rental car, hotel, and subsistence costs.

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City, State, and Country where autoclave will be installed


Please send me a quotation for the following autoclave

ECONOCLAVE MODEL # EC5X12 - 5 ft. Diameter X 12 ft. Length


150 psig (10.3 bar) @ 450°F (232 °C)

200 psig (13.8 bar) @ 800°F (426 °C)

Non-standard; °F ( °C) @ Pressure psig ( bar)


Please check the options you would like quoted.

VS - Alternate pressure vessel code. Learn more...

PW - Alternate primary and control power. Learn more...

CL - Cooling system options. Learn more...

VP - Vacuum pumps. Learn more...

CT - Floor and autoclave load carts. Learn more...

IN - Installation of Econoclave at my facility. Learn more...


  • Econoclave EC5X12-1
  • Econoclave EC5X12-2
  • Econoclave EC5X12-3
  • Econoclave EC5X12-4
  • Econoclave EC5X12-5
  • UK
  • USA