The GPCMA modified atmosphere chamber furnaces are equipped with a metallic retort to provide a heated volume with a controlled atmosphere. They are floor-standing models with a smooth action hinged door arrangement.
Available with a range of maximum temperature from 1000 °C to 1150 °C dependent on the selected retort material. Retort working volumes range from 56 to 245 litres.
Oxygen levels can be reduced to 30 ppm depending on the application. Perfect for stress relieving additive manufactured components particularly those produced via DMLS. This range of furnaces can be optionally specified for compliance to AMS2750H Nadcap class 1 for aerospace applications.
Standard features
- A range of maximum temperatures dependant on retort material:
310 Stainless Steel: 1000 °C max
314 Stainless Steel: 1050 °C max
Inconel 601: 1100 °C max
Haynes 230: 1150 °C max - Programmable 3508P1 controller
- 2-zone cascade control
- Over-temperature protection
- 56, 174, 208 or 245 litre retort working volume
- Semi-automatic gas system with analogue flowmeters for nitrogen or argon
- Free radiating coiled wire elements on two sides, the roof and under the hearth
- Low thermal mass insulation for fast response & energy efficiency
- Smooth action double pivot door shields the user from excessive heat
- Type R control thermocouples
- Type K internal retort thermocouple
- Silicone rubber water cooled door seal
- Door safety interlock
Options (specify these at time of order)
- A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications - more information
- Vacuum option (10-2 mbar) for faster atmosphere exchange at room temperature only. No heat treatment under vacuum possible. A vacuum retort MUST be ordered with this option
- Semi-automatic gas system with analogue flowmeters for argon
- Semi-automatic gas system with digital flowmeters
- Automatic gas system with gas monitoring and control with mass flow controllers
- Oxygen monitoring system with 3504 programmer
- Forced cooling system
- Active afterburner torch option (propane or methane with pressured air; NOT compatible with vacuum option/vacuum retorts)
- Chiller unit, 5 litre/min, 1 kW
- Loading trolley
- AMS2750H Nadcap compatible models are available for aerospace applications
- Various loading and unloading options can be supplied
Modified Atmosphere Chamber Furnace - GPCMA Examples
GPCMA /174 fitted with optional compliance to AMS2750G class 1 / type A
GPCMA /174 with PLC controlled gas system, HMI touch panel and afterburner with heated gas outlet. Designed to fit against a clean room wall opening.
Modified Atmosphere Chamber Furnace - GPCMA Technical Data
| Retort Volume (litres) | Max temp (°C) | Dimensions: External H x W x D (mm) | Dimensions: Retort Internal Size H x W x D (mm) | Dimensions: Uniform Volume H x W x D (mm) | Max power (W) | Weight (kg) | |
|---|---|---|---|---|---|---|---|
| GPCMA/56 | 56 | 1000 - 1150 (dependant on retort material) | 1846 x 1260 x 1725 | 229 x 400 x 610 | 150 x 275 x 300 | 24000 | 485 |
| GPCMA/174 | 174 | 1000 - 1150 (dependant on retort material) | 2045 x 1360 x 1875 | 428 x 500 x 815 | 350 x 400 x 550 | 36000 | 705 |
| GPCMA/208 | 208 | 1000 - 1150 (dependant on retort material) | 2045 x 1360 x 2025 | 428 x 500 x 970 | 350 x 400 x 750 | 39000 | 800 |
| GPCMA/245 | 245 | 1000 - 1150 (dependant on retort material) | 2145 x 1460 x 2025 | 500 x 600 x 815 | 400 x 500 x 550 | 45000 | 950 |
