In modern scientific research and high-end manufacturing, box-type resistance furnaces, ceramic fiber muffle furnaces, vacuum tube furnaces, and vacuum atmosphere furnaces collectively constitute key high-temperature processing technology platforms. Box-type resistance furnaces, as general-purpose high-temperature workstations, have become a reliable cornerstone for laboratory material ashing, melting testing, and industrial heat treatment (such as annealing and quenching) due to their wide temperature range and excellent temperature uniformity. Ceramic fiber muffle furnaces utilize advanced insulation materials, achieving rapid heating and excellent thermal efficiency, making them particularly suitable for scenarios requiring frequent heating and cooling and high-efficiency processing, such as new material development, nanotechnology synthesis, and rapid calcination of various samples. For applications with stringent process environment requirements, vacuum tube furnaces provide a sealed, clean, high-temperature environment, effectively preventing oxidation and contamination of materials during heating, and are widely used in precision research such as semiconductor material preparation, ceramic sintering, and chemical vapor deposition. Vacuum atmosphere furnaces combine vacuum technology with controllable atmosphere capabilities, creating a highly controllable chemical environment for the synthesis, sintering, and heat treatment of sensitive materials (such as easily oxidized metals, special alloys, and high-performance ceramics) through the precise introduction of inert or reactive gases. These four types of equipment complement each other, providing indispensable thermal equipment and solutions for numerous technological and industrial breakthroughs, from basic elemental analysis to cutting-edge single crystal growth.
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. High Temperature Lab Furnace Manufacturers.
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. High Temperature Electric Furnace Suppliers. 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, and 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.
2026/10/13
2026/10/08
2026/09/28
2026/09/21
Shanghai Dengsheng Instrument Manufacturing Co., Ltd. is a high-tech enterprise and High-temperature Furnace Series manufacturer in China, delivering electric furnaces for laboratory research, industrial heat treatment, and advanced material processing. Our range covers box-type resistance furnaces, ceramic fiber muffle furnaces, vacuum tube furnaces, and vacuum atmosphere furnaces, each engineered for specific thermal process requirements.
We supply four complementary furnace types, all built on a modular platform with intelligent PID control and safety interlocks. The table below summarizes the application fit and key temperature ranges.
| Furnace Type | Temperature Range | Typical Applications |
|---|---|---|
| Box-type Resistance Furnace | 1000–1300°C | Ashing, annealing, quenching, sintering, elemental analysis |
| Ceramic Fiber Muffle Furnace | 1000–1800°C | Rapid heating/cooling, new material synthesis, CVD, high-entropy alloys |
| Vacuum Tube Furnace | 1200–1700°C | Semiconductor processing, ceramic sintering, crystal growth, atmosphere control |
| Vacuum Atmosphere Furnace | Up to 1700°C | Sintering of sensitive materials, special alloys, high-performance ceramics |
Each furnace type addresses a distinct thermal challenge. Our box-type resistance furnaces serve as general-purpose workstations for routine heat treatment and analytical preparation. The ceramic fiber muffle furnace, with its low thermal mass insulation, supports rapid ramp rates and frequent cycling—ideal for R&D environments. Vacuum tube furnaces provide a sealed, clean atmosphere for oxidation-sensitive processes, while vacuum atmosphere furnaces allow precise gas introduction for reactive sintering.
We configure the control system around your required process profile. All models feature intelligent PID fuzzy control with ±1°C accuracy, color LCD touch interface, programmable ramp-and-soak segments, and selectable timing modes (constant temperature, power-on, forward/countdown). For atmosphere control, we integrate gas switching interfaces and vacuum systems with pressure gauges, ensuring repeatable conditions.
We offer flexible configuration to match your workflow. Options include quartz observation windows, mass spectrometry interfaces, programmable multi-segment controllers, and remote monitoring via RS485 or Ethernet. For production lines, we can integrate the furnace with upstream/downstream equipment, providing communication protocols and data logging for audit trails.
Our engineering team works from your process parameters—temperature profile, atmosphere type, vacuum level, and load size—to select the appropriate heating element, insulation thickness, and control strategy. We also provide custom chamber dimensions and flange designs for tube furnaces.
As an ISO-9001 certified manufacturer, we enforce a 4-stage inspection protocol: incoming material, in-process, aging test, and final pre-shipment check. Each furnace undergoes multi-point thermal mapping to verify temperature uniformity across the usable chamber space. We also conduct pressure retention tests on vacuum and atmosphere systems to ensure sealing integrity.
We provide acceptance documentation including calibration certificates, test reports, and operating manuals. For international orders, we prepare export packaging and supply English documentation, power supply configurations meeting local standards, and remote installation guidance via video conference.
To prepare a precise quotation and technical proposal, we need the following project data:
Share these details with our sales engineers, and we will recommend the appropriate model, optional accessories, and integration approach. We also support custom development based on your drawings or samples.
Beyond high-temperature furnaces, we manufacture complementary thermal equipment. Our Drying Oven Series covers forced air and high-temperature drying, while the Vacuum Box Series provides low-temperature vacuum drying for heat-sensitive materials. For controlled atmosphere processes, the Explosion-proof Series offers safe operation in hazardous environments.
Q: What is the difference between a box-type resistance furnace and a ceramic fiber muffle furnace?
A: Box-type resistance furnaces use refractory brick chambers and are ideal for stable, long-duration heat treatment. Ceramic fiber muffle furnaces have low thermal mass, enabling rapid heating and cooling—better for frequent cycling and high-efficiency processing.
Q: Can you provide a vacuum tube furnace with a specific atmosphere control?
A: Yes. Our vacuum tube furnaces support inert, reducing, or reactive atmospheres via gas inlet/outlet ports and vacuum systems. We can integrate mass flow controllers and pressure monitoring for precise gas composition.
Q: What temperature uniformity can I expect?
A: We perform multi-point thermal mapping before shipment. Typical uniformity is within ±3°C at peak temperature for standard configurations, depending on chamber size and heating element layout.
Q: Do you offer custom chamber sizes?
A: Yes. We can customize chamber dimensions, tube diameters, and flange designs based on your sample size and process requirements. Our R&D team will adjust heating element placement and insulation accordingly.
Q: What is the lead time for standard models?
A: For standard models, we typically ship within 5–7 business days after payment. Customized units require a negotiated schedule based on complexity, which is documented in the contract.
Back to Top
Español 
عربى 
