2025/11/27
With a deep commitment to the global market, Shanghai Dengsheng Instrument has earned international acclaim for its quality.




The low-temperature vacuum drying oven is a high-end vacuum equipment that breaks through conventional temperature range limitations. Its exceptional temperature control range covers -10℃ to 150℃, enabling full process coverage from low-temperature freeze-drying to medium-to-high temperature heat treatment. Its wide temperature range and precise temperature control capabilities allow for stable operation in deep low-temperature environments, effectively preventing structural denaturation or loss of activity in heat-sensitive materials (such as biological samples, high-end reagents, and certain polymer materials). At the same time, it can provide a heating environment up to 150℃, meeting various process requirements such as curing, aging, and drying. Combined with its rapid cooling function, it redefines the standard for vacuum heat treatment and is an ideal choice for those pursuing superior quality and cutting-edge research.
① Temperature control range covers -10℃ to 150℃, achieving full process coverage from low-temperature freeze-drying to medium-to-high temperature heat treatment;
② Adopts a microcomputer-integrated intelligent temperature control system with a built-in microcomputer chip, which collects temperature change data in real time and dynamically adjusts PID parameters (such as response speed and overshoot suppression), ensuring a temperature fluctuation range of less than ±0.5℃. Compared with traditional PID control methods, it offers smaller temperature overshoot, faster stabilization time, and better temperature control accuracy;
③ Integrated design with a standard vacuum pump. This design eliminates cumbersome external connection pipelines and assembly steps, truly achieving a plug-and-play experience;
④ Upgraded observation window: 8mm tempered glass on the outer layer and 20mm thickened tempered glass on the inner layer, ensuring a long service life and preventing breakage;
⑤ Sealing ring: Custom-made, independently molded silicone rubber sealing ring with a protruding structure for better sealing, ensuring no leakage for 3 months under vacuum;
⑥ Exhaust valve: Mechanical structure, tested for tens of thousands of cycles without failure, easy to operate, and prevents vacuum pump oil backflow;
⑦ Multiple modes for free switching: Fixed-value mode/timed mode (timed mode can be further divided into forward and countdown modes);
⑧ Flexible and convenient: The trays are removable, easy to replace, and allow for more efficient use of the working space;
⑨ Guaranteed after-sales service: After-sales service is provided nationwide (excluding some remote areas and towns);
⑩ Video tutorials provided: Video tutorials are provided to users for a more intuitive understanding of the equipment's performance and quick mastery of its operation.
① Appearance: Classic vertical integrated design, with the vacuum pump concealed in the lower cabinet, resulting in a compact structure that showcases modern industrial aesthetics;
② Shell Material: Made of selected high-quality cold-rolled steel plate (Q235), precisely formed using CNC technology. The surface is specially treated with phosphating and anti-static powder coating, creating a robust shell. It is anti-static, corrosion-resistant, and scratch-resistant, ensuring lasting quality;
③ Working Chamber: Made of selected 3mm thick 304 stainless steel, precisely machined using CNC technology, possessing excellent high-temperature stability and corrosion resistance. The surface is smooth and dense, remaining pristine over time, providing a solid guarantee for high-end processes;
④ Control Panel: The centralized control layout in the middle realizes the operating concept of "one area controlling the whole system." All operating instructions, including power-on, temperature setting, vacuum level, and program parameters, can be efficiently completed in this area, greatly simplifying the operation process, reducing the risk of errors, and improving human-machine interaction efficiency;
⑤ Equipped with a high-precision medical-grade vacuum gauge with an accuracy of 2.5 grade, which is stable and reliable, intuitively displaying the real vacuum state inside the chamber, providing accurate data support and guarantee for precision processes;
⑥ Observation window: A panoramic, extra-large viewing window, using 8mm outer and 20mm inner double-layer tempered glass, resistant to high temperatures and highly transparent, clearly displaying the entire interior of the chamber in real time, making the experimental status clear at a glance;
⑦ Shelves: Standard configuration includes chrome-plated corrosion-resistant mesh shelves, and various materials and structures can be customized to flexibly adapt to various experimental needs;
⑧ Insulation layer: The space between the outer shell and the working chamber is filled with 80mm thick high-purity ceramic fiber cotton (Al₂O₃), providing super insulation, greatly reducing heat loss, ensuring constant temperature stability, and achieving high energy efficiency;
⑨ Sealing strip: Equipped with a self-developed silicone rubber sealing ring with a circumferential convex line structure and a unique active vacuum-breaking sealing technology, which instantly forms a channel during pressure release, greatly improving the vacuum-breaking efficiency and ensuring that the door can be easily opened after pressure release;
⑩ Heating tube: Customized extra-long life SUS304 stainless steel heating tube, with optional partition/surrounding sheathed heating structure, precisely adapted to the process, ensuring uniform and efficient heating;
⑪ Inlet/Exhaust valve: All-copper vacuum valve, easy and sensitive to operate, and reliable sealing;
① Color LCD Screen: Utilizes a microcomputer integrated intelligent temperature control system with a built-in microcomputer chip. It collects temperature change data in real-time and dynamically adjusts PID parameters (such as response speed and overshoot suppression), ensuring a temperature fluctuation range of less than ±0.5℃. Compared with traditional PID control methods, it offers advantages such as smaller temperature overshoot, faster stabilization time, and better temperature control accuracy;
② Employs a microcomputer P.I.D temperature controller with over-temperature deviation protection, over-speed protection, and touchscreen display, and includes a timing function;
③ Multiple timing modes: 1. The timing unit can be freely switched between minutes and hours; 2. Two timing modes: timing from power-on and timing after reaching a constant temperature;
④ Upgraded sound and light alarm environmental scanning microcomputer chip with stable data processing capabilities;
⑤ Features include over-temperature alarm, over-temperature heating cutoff, timed shutdown, power-on recovery, parameter memory, temperature correction, and self-tuning;
⑥ Power failure recovery function: After a sudden power outage and subsequent power restoration, the device can automatically resume operation according to the original settings;
⑦ Self-tuning: When the temperature control accuracy is affected by changes in ambient temperature, self-tuning can be performed to improve temperature accuracy;
⑧ Multiple modes can be freely switched: fixed value mode/timing mode switching.
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Model |
DEP-6050LT |
EP-6090LT |
DEP-6150LT |
DEP-6210LT |
DEP-6250LT |
DEP-6500LT |
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Controller |
4.3-inch three-row digital LCD display |
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Controller Range |
-50~400℃ |
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Temperature Sensor |
PT100 Platinum RTD |
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Temperature Range |
-10~150℃ |
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Temperature Resolution |
0.1℃ |
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Temperature Fluctuation |
≤±0.5℃ |
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Timer Range |
0~9999min |
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Timing Mode |
Start timing / Hold timing / No timing |
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Timing Direction |
Count-up/Count-down |
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Timing Unit |
Minute/Hour |
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Compressor |
Hangzhou Qianjiang |
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Refrigerant |
134Pa |
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Cooling Methods |
Radiation + Conduction |
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Vacuum Gauge |
Analog (high precision, Class 2.5) |
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Pumping Speed |
2L/S |
2L/S |
2L/S |
4L/S |
4L/S |
6L/S |
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Ultimate Vacuum |
≤100Pa |
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Pressure rise rate |
3 months≤1KPa |
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Operation Mode |
Constant/Timer Operation |
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Security Protection |
Over-temperature alarm, over-temperature power off, startup self-diagnosis, self-tuning |
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Power Supply Voltage |
220V/10A |
220V/15A |
220V/20A |
220V/20A |
220V/25A |
380V/25A |
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Rated Power |
2KW |
2.85KW |
3.6KW |
4KW |
5KW |
7.8KW |
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Interior Dimensions (mm) |
410*370*345 |
450x450x450 |
500x500x600 |
560x600x640 |
600x600x700 |
630x810x845 |
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External Dimensions (mm) |
610*525*1285 |
660x590x1470 |
670x650x1630 |
770x840x1650 |
810x800x1750 |
850x950x1860 |
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Volume |
52L |
91L |
150L |
215L |
252L |
431L |
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Standard Shelves |
2 |
3 |
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Gross/Net weight |
142/131KG |
179/164KG |
214/192KG |
268/252KG |
295/278KG |
495/452KG |
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No. |
Name |
Parameters |
Reference Photo |
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1 |
7-inch Touchscreen Controller |
① Programs: 100 groups, 100 segments per group |
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2 |
5-inch Touchscreen Controller |
① Programs: 100 groups, 100 segments per group |
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3 |
Program Controller (30 segments) |
① 30-segment program control for heating/cooling |
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4 |
Independent Over-Temperature Limiter |
① Secondary protection against temperature overshoot and runaway |
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5 |
Built-in Printer |
① Real-time printing |
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6 |
RS485 Interface |
① Connect to micro printer, USB drive, or remote communication |
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7 |
USB Port |
① Export historical operation data |
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8 |
Inert Gas Inlet Valve |
① Introduce inert gas |
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9 |
Secondary Filter | ① Filters condensed liquid molecules. | ![]() |
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10 |
Vacuum Level Automatic Control System | ① Automatic vacuum compensation. ② Automatic pressure relief. ③ Control range: 100 Pa to 99.99 kPa. ④ Timer range: 0~9999 min/h. ⑤ Number of segments: 5. ⑥ Power supply voltage: 100~240 VAC. ⑦ Operating conditions: Temperature 0~50°C, relative humidity <85% RH. |
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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 Fast Response Speed Low-temperature Vacuum Drying Oven Manufacturers and Fast Response Speed Low-temperature Vacuum Drying Oven Factory 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 Fast Response Speed Low-temperature Vacuum Drying Oven Wholesale, 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
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