KSL-GS216 Bottom-Loading Inert Gas Atmosphere Box Furnace with 216L Chamber, Up to 1700ºC
The KSL-GS216 furnace is engineered for advanced laboratory and industrial applications requiring controlled atmosphere heat treatment of large samples. Its spacious 600 mm cubic chamber (approximately 24″x24″x24″ or 216 liters) accommodates sizable materials while maintaining an inert gas environment to prevent oxidation or contamination during processing.
This bottom-loading furnace uses an electric hydraulic lift capable of handling loads up to 200 kg, facilitating safe and ergonomic sample placement. The vacuum-sealed steel chamber with a water-cooled sealing jacket ensures durability and effective atmosphere isolation. Integrated vacuum and gas flow control systems enable precise regulation of inert gas, typically argon, to maintain a stable processing environment.
Key Features
- Large 216L heated chamber with dimensions 600 x 600 x 600 mm (24″x24″x24″) for processing bulky samples.
- Bottom-loading mechanism with electric hydraulic lift supporting up to 200 kg sample weight.
- High-temperature capability: continuous operation at 1300ºC or 1600ºC, with a maximum of 1700ºC for short durations.
- Heating elements options: 12 molybdenum alloy elements for up to 1700ºC or 12 silicon carbide elements for up to 1400ºC.
- Precision temperature control using Eurotherm PID controller with ±0.5ºC accuracy and ±3ºC uniformity.
- Vacuum-sealed chamber with water-cooled sealing jacket and integrated vacuum pump for oxygen removal.
- Dual B-type thermocouples for control and safety alarm functions.
- Touch-screen digital control panel with programmable heating/cooling segments and over-temperature protection.
Technical Specifications
| Parameter | Specification |
|---|---|
| Heated Chamber Size | 600 x 600 x 600 mm (24″ x 24″ x 24″), 216 Liters |
| Maximum Working Temperature | Continuous: 1300ºC or 1600ºC; Max: 1700ºC (under 1 hour) |
| Heating Elements | 12 Molybdenum alloy (1700ºC max) or 12 Silicon Carbide (1400ºC max) |
| Heating Rate | 5ºC per minute |
| Temperature Accuracy | ±0.5ºC |
| Temperature Uniformity | ±3ºC inside chamber |
| Thermocouples | Two B-type (control and alarm) |
| Power Supply | AC 460V, Three-phase, 50/60 Hz, 50 kW |
| Gas Flow Control | Two flow meters (0-8 L/min and 0-4 L/min) on front panel |
| Vacuum System | Heavy-duty vacuum pump included for oxygen removal |
| Cooling | Water-cooled sealing jacket with 16 L/min recirculating water chiller |
| Control System | Eurotherm PID controller with SCR, 16 programmable segments, RS485 communication |
Typical Applications
Ideal for heat treatment, sintering, annealing, and material processing requiring inert atmosphere conditions to prevent oxidation. Suitable for ceramics, metals, composites, and advanced materials research and production.
Configuration & Operating Notes
The furnace includes a vacuum pump and water chiller as standard components. Optional certifications such as MET and NRTL/CSA are available upon request. To protect molybdenum heating elements from oxidation, continuous inert gas flow (argon preferred) is essential throughout operation. A two-stage pressure regulator must be installed on the gas cylinder to maintain pressure below 3 PSI for safe use. Heating and cooling rates should not exceed 5ºC per minute to prolong furnace life. Minor refractory ceramic cracks may develop over time and can be repaired with alumina coating.
