Vacuum Atmosphere Elevator Furnace for Magnetic Materials

Product Overview

The 1400℃ vacuum atmosphere elevator furnace is specifically designed for the sintering, debinding, and heat treatment of magnetic materials such as NdFeB and ferrite. Equipped with a fully automated PLC mechanical transmission system, the furnace ensures reliable and precise loading, lifting, and sealing operations.

Featuring six-point independent temperature control, the furnace achieves excellent uniformity (±5℃), which is critical for ensuring the consistency of magnetic properties such as coercivity (HcJ) and remanence (Br). With a large chamber size of 900×500×1200 mm and a loading capacity up to 3000 kg, it supports large-scale industrial production while lowering unit energy consumption.

The system integrates high vacuum (up to -0.095 MPa) and multi-atmosphere processing (N₂, Ar, H₂, CO, O₂), making it suitable for bright annealing, precision sintering, and binder removal. An automatic exhaust design ensures the safe removal of decomposition gases during debinding, maintaining a clean atmosphere and extending furnace service life.

This furnace provides excellent reliability and repeatability, enabling manufacturers of magnetic materials to achieve stable performance, high yield, and optimized production costs.

Technical Parameters

Item	Specification
Model	GWL-1400SS / GWL-1350SSZQ-900/500/1200
Chamber Size (W×D×H)	900 × 500 × 1200 mm
Power	100 kW (automatic/manual adjustment, ≤40% during holding)
Maximum Temperature	1400℃
Continuous Working Temperature	≤1360℃
Temperature Control Range	80–1600℃
Heating Elements	MoSi₂ heating elements
Thermocouple	B-type thermocouple (0–1600℃)
Temperature Accuracy	±1℃
Temperature Uniformity	±5℃ (6-point control)
Heating Rate	1℃/h to 40℃/min adjustable
Loading Capacity	≤3000 kg
Control System	PLC + Touch Screen, multi-program storage
Atmosphere Options	Vacuum (≤-0.095 MPa), N₂, Ar, H₂, CO, O₂
Exhaust Port	Automatic debinding/exhaust system
Safety Protection	Over-temp, over-current, over-voltage, phase loss, emergency manual descent

Application for Magnetic Materials

Sintering of NdFeB Magnets
- Maintains oxygen-free environment, preventing oxidation.
- Ensures uniform microstructure, enhancing coercivity (HcJ) and remanence (Br).
Ferrite Magnetic Materials
- Precise atmosphere control for high-quality ferrite sintering.
Debinding & Binder Removal (PIM Process)
- Integrated exhaust port removes polymer binders without contaminating furnace chamber.
Large-Scale Batch Production
- 3000KG platform supports mass production, reducing per-unit energy and time costs.
High-End R&D and Industrial Production
- Suitable for magnetic alloys, special ceramics, and advanced composite materials.