The nitrogen purging/filling drying oven is an advanced heat treatment equipment that utilizes high-purity nitrogen gas to displace reactive gases within the chamber, combined with precise temperature control and forced convection technology. Its core value lies in creating a low-oxygen, clean, and uniformly heated inert atmosphere, significantly inhibiting oxidation, hydrolysis, and denaturation reactions of materials during the heating process. Through nitrogen flow control, a precise PID temperature control module, and a multi-level safety protection system, it enhances process reliability and product yield while significantly advancing the technological boundaries of efficient processing of high-end materials under an inert atmosphere.
① Upgraded Appearance: While improving the overall performance of the equipment, the appearance has been upgraded to be exquisite and elegant;
② Color LCD Screen: Standard equipped with a color screen and touch buttons, displaying parameters such as set temperature, operating temperature, constant temperature time, and fault information on one screen; integrates a microprocessor intelligent temperature control system with dynamic PID parameter adjustment, featuring fast response speed and temperature overshoot suppression;
③ Nitrogen Purging: By filling the working chamber with inert gas (usually nitrogen), the atmospheric environment at high temperatures is changed, preventing oxidation, hydrolysis, and denaturation of materials during heat treatment;
④ Two Operating Modes: Free switching between fixed-value mode and timing mode (timing mode can be further divided into forward and countdown modes);
⑤ Sealing Ring: Silicone rubber high-temperature resistant sealing ring, with its excellent molecular stability, wide temperature range (-60℃ to 250℃), weather resistance, electrical insulation, and resistance to deformation;
⑥ Fresh Air Ventilation: Intelligent fresh air system, configured with 2-8 intake and exhaust ports according to the volume of the chamber, intelligently discharging water vapor without intervention, significantly improving drying efficiency and experimental consistency;
⑦ Flexible and Convenient: Detachable mesh plate design greatly improves the utilization and flexibility of the working chamber space, while making cleaning and maintenance extremely simple and efficient;
⑧ Guaranteed After-Sales Service: Provides a comprehensive after-sales service network covering most areas of the country, ensuring worry-free use for users (Note: excluding a few remote towns);
⑨ Technical Support Solutions: Provides multi-faceted technical guidance including videos, telephone support, and online video tutorials, intuitively demonstrating equipment performance and operation methods, helping users quickly master the equipment.
① Casing Material: Made of selected high-quality cold-rolled steel plate (Q235), precision-formed by CNC machining. The surface is treated with phosphating and anti-static powder coating, creating a robust casing. It is anti-static, corrosion-resistant, and scratch-resistant, ensuring long-lasting quality;
② Working Chamber: Made of thickened stainless steel, possessing excellent high-temperature stability and corrosion resistance, with a smooth surface for easy cleaning;
③ Control Panel: High-end color screen controller, displaying key data such as temperature and time in real-time and accurately. Features intelligent fault diagnosis and alarm, providing intuitive human-machine interaction and complete control at your fingertips;
④ Circulation System: Utilizes a powerful turbine fan and scientific airflow design to achieve high-speed hot air circulation, ensuring excellent temperature uniformity inside the working chamber, preventing localized overheating, and significantly improving drying efficiency and processing consistency;
⑤ Nitrogen Purging System: External nitrogen inlet interface, standard with a ball valve for manual adjustment of nitrogen flow rate;
⑥ Equipped with multiple safety mechanisms such as over-temperature protection and overload protection, ensuring long-term stable operation, suitable for high-frequency use in research;
⑦ Insulation Layer: 75mm thick high-purity ceramic fiber cotton (Al₂O₃) is filled between the casing and the working chamber, providing superior thermal insulation, greatly reducing heat loss, ensuring constant temperature, and achieving high energy efficiency;
⑧ Door Seal: Can withstand long-term thermal oxidation, maintaining elasticity and sealing integrity, effectively preventing heat loss and ensuring the stability of the working chamber temperature;
⑨ Heating Tube: Made of stainless steel and high-resistance electric heating alloy wire, with a thermal efficiency exceeding 95%. The integrated design provides good insulation, corrosion resistance, and oxidation resistance, suitable for high-temperature, humid, and corrosive industrial environments, ensuring long life and stable performance;
⑩ Shelves: Standard with high-corrosion-resistant chrome-plated mesh shelves, with surface hardening treatment, oxidation resistance, acid and alkali resistance, and stable load-bearing capacity; supports flexible customization of various materials and hole types such as stainless steel, alloy, and Teflon, perfectly matching the demanding requirements of pharmaceutical, electronics, and research applications, providing precise and reliable load-bearing solutions for high-end drying processes.
⑪ Some large-capacity models are equipped with high-performance silent universal wheels, combining flexible movement and stable positioning, suitable for precision laboratories and high-end industrial environments, showcasing detailed technology and user-friendly design.
① Color LCD Screen Controller: Standard equipped with a color screen and touch buttons, displaying parameters such as set temperature, operating temperature, constant temperature time, and fault information on a single screen; integrates a microprocessor intelligent temperature control system with dynamic PID parameter adjustment, offering fast response speed and temperature overshoot suppression;
② Diverse Timing Modes: 1. Timing units can be freely switched between minutes and hours; 2. Two timing modes: timing from power-on and timing after reaching constant temperature;
③ Upgraded sound and light alarm environmental scanning microcomputer chip with stable data processing capabilities;
④ Features include over-temperature alarm, over-temperature heating cutoff, timed shutdown, power-on recovery, parameter memory, temperature correction, and self-tuning;
⑤ Power Failure Recovery Function: After a sudden power outage and subsequent power restoration, the equipment can automatically resume operation according to the original settings;
⑥ Self-tuning: When the temperature control accuracy is affected by changes in ambient temperature, self-tuning can be performed to improve temperature accuracy;
⑦ Multiple Modes: Switching between fixed-value mode and timed mode.
| Model DEP- | 9035NF | 9055NF | 9075NF | 9145NF | 9245NF | 9425NF | 9645NF | 9965NF | 91005NF |
| Structure | Benchtop | Vertical | |||||||
| Controller | 4.3-inch three-row LCD display | ||||||||
| Controller Range | -50～400°C | ||||||||
| Temperature Sensor | PT100 Platinum RTD | ||||||||
| Temperature Range | RT+10～300℃ | ||||||||
| Temperature Resolution | 0.1℃ | ||||||||
| Temperature Fluctuation | ≤±1℃ | ||||||||
| Temperature Uniformity | ±2%℃ | ||||||||
| Heating Rate | RT～200℃≤70min | ||||||||
| Nitrogen Interface | Outer diameter 10mm (Pagoda connector) | ||||||||
| Timer Range | 0～9999min | ||||||||
| Timing Mode | Start timing / Hold timing / No timing | ||||||||
| Timing Direction | Count-up / Count-down | ||||||||
| Timing Unit | Minute / Hour | ||||||||
| Operation Mode | Constant value / Timer operation | ||||||||
| Safety Protection | Over-temperature alarm, over-temperature power off, startup self-diagnosis, self-tuning | ||||||||
| Power Supply | 220V/10A | 220V/15A | 220V/18A | 380V/18A | 380V/25A | ||||
| Power | 0.85KW | 0.85KW | 1KW | 1.5KW | 2KW | 3KW | 4.5KW | 6KW | 7.5KW |
| Interior Dimensions (mm) | 340*330*320 | 420X350X390 | 450x400x450 | 550x450x550 | 600x600x650 | 600x550x1300 | 800x800x1000 | 1000x600x1600 | 1000x1000x1000 |
| Exterior Dimensions (mm) | 625*540*500 | 705x610x530 | 735x610x630 | 835x670x730 | 880x800x830 | 780x750x1750 | 980x980x1490 | 1140x780x1990 | 1140x1180x1390 |
| Volume | 36L | 51L | 81L | 136L | 232L | 429L | 640L | 960L | 1000L |
| Standard Shelves | 2 | 3 | |||||||
| Gross/Net Weight (KG) | 37/25 | 48/35 | 52/38 | 74/59 | 87/72 | 175/160 | 252/230 | 293/255 | 294/255 |
|
No. |
Name |
Parameters |
Reference Photo |
|
1 |
Program Controller (30 segments) |
① 30-segment program control for heating/cooling |
|
|
2 |
Independent Over-Temperature Limiter |
① Secondary protection against temperature overshoot and runaway |
|
|
3 |
Built-in Printer |
① Real-time printing |
|
|
4 |
RS485 Interface |
① Connect to micro printer, USB drive, or remote communication |
|
|
5 |
USB Port |
① Export historical operation data |
|
|
6 |
Inert Gas Inlet Valve |
① Introduce inert gas |
|
|
7 |
Test Port |
① Material: Stainless steel + bakelite |
|
|
8 |
Fan Speed Controller |
① Stepless adjustment across range |
|
|
9 |
Trays |
① Stainless steel material |
|
Products provided by famous enterprises are deeply trusted by users.
Shanghai Dengsheng Instrument Manufacturing Co., Ltd. is a high-tech enterprise integrating R&D, production, sales, and service. We specialize in the manufacture of high-end laboratory equipment, including ovens, incubators, industrial furnaces, and environmental test chambers.
As Nitrogen-Filled Drying Oven Manufacturers and Nitrogen-Filled Drying Oven Suppliers in China, We boast an 8,000-square-meter modern production facility, a dedicated R&D team, 23 national patents, and ISO-9001 quality management system certification. Our solutions are widely used in cutting-edge fields such as aerospace, semiconductors, biomedicine, automotive, and new materials. We have established in-depth partnerships with top universities and industry leaders, supply Custom Nitrogen Purging Drying Oven, our products are exported to many countries and regions around the world.
Adhering to the principles of "Integrity, Innovation, and Win-Win," we are committed to becoming your trusted partner with reliable quality and dedicated service.
We welcome inquiries and cooperation from both new and existing customers, providing professional equipment solutions.
2025/11/27
2025/11/12
2025/11/12
Back to Top
Español 
عربى 
