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- gwdlthermo@gwdl.com
The 1200°C single-zone high-vacuum tube furnace is designed for precise thermal processing under high vacuum, ensuring clean and controlled experimental conditions.
| Parameter categories | 1200 degrees |
| model | GWDL-GA |
| Heating chamber size | 150mm diameter * 300mm effective heating zone Furnace tube length 950mm |
| Furnace tube material | High-purity quartz glass |
| Voltage | 380V |
| power | 6 kW |
| Maximum operating temperature | 1200 degrees |
Long-term use temperature Spend | 1150 degrees |
| The control range is | RT-1200 degrees |
| Temperature sensing element | Thermocouple type K, temperature range 0-1320 degrees Celsius |
Heating element installation Location | Furnace tube perimeter |
| Temperature control accuracy | ±1 degree (integrated circuit control, no overshoot) |
| Furnace temperature uniformity | ≤ ±5 degrees (depending on the size of the furnace; large furnaces can use multi-point control) This control method aims to achieve better furnace temperature uniformity. |
| heating rate | Adjustable from 1 ℃ /h to 15 ℃ /min ( non-linear ) |
| Heating element | High-temperature alloy resistance wire is used as the heating element. |
| Can open atmosphere | It can pass through various gases (oxygen, nitrogen, argon, hydrogen, etc.) |
| Vacuum component section | |
| vacuum pump | Mechanical pump + molecular pump unit |
| vacuum degree | ≤ 10⁻³ Pa |
| Pressure testing | One pressure gauge with both positive and negative pressure indicators (a digital vacuum gauge is optional). |
| valve | Imported stainless steel valves (ordinary, stainless steel, solenoid valves, etc. are available). |
| Flow meter | Two 0-300 ml / min mass flow meters |
| Gas pipeline | Clean stainless steel tubing is used for gas applications. |
| Pressure protection | This system was specifically designed to prevent hazards caused by closed or blocked furnace tube exhaust ports, or excessive furnace tube pressure. Its principle is as follows: a signal from an electrical contact pressure gauge or pressure sensor drives the control module to close the electromagnetic intake valve and activate the electromagnetic exhaust valve and alarm. This protects the electric furnace's normal operation. run |
| Furnace door opening method | upper and lower hinges open and close |
| Furnace body | The furnace body is machined using CNC machine tools, and undergoes polishing, grinding, pickling, phosphating, powder coating, and high-temperature baking. It features a two-tone design, a novel and attractive appearance, and possesses advantages such as oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning. |
| Furnace body structure | The electric furnace body adopts a double-layer air-cooled structure. Effective air-cooling guide baffles ensure overall cold air circulation within the furnace shell, ultimately cooling the conductive plates of the heating elements before they are discharged from the furnace body, thus preventing high-temperature oxidation of the conductive plates and guaranteeing a good working environment. |
| Refractory materials | The furnace lining is made of vacuum-formed high-purity alumina lightweight material. Areas prone to material handling (furnace opening, furnace bottom) utilize lightweight hollow alumina plates. This material offers high operating temperature, low heat storage, resistance to rapid heating and cooling, no cracking, no slag shedding, and good insulation performance. (The energy-saving effect is more than 80% of that of old-fashioned electric stoves ) |
| thermal insulation materials | It adopts a three-layer insulation system, consisting of aluminum silicate fiberboard, alumina fiberboard, and alumina (polycrystalline) fiberboard, achieving an energy-saving effect of over 80% compared to traditional electric furnaces . |
| Furnace shell temperature | For long-term use without shutting down the furnace, the outer casing temperature should be less than 45 degrees Celsius . |
| Protect | The system employs an integrated modular control unit, ensuring accurate control precision. It also features dual-loop control and dual-loop protection, providing protection against overshoot, over-adjustment, under-adjustment, thermocouple breakage, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start. |
| control | Employing closed-loop technology with thyristor module trigger control, phase-shift trigger control , or zero-crossing triggering, the output voltage, current, or power is continuously adjustable, exhibiting constant voltage, constant current, or constant power characteristics. The current loop is the inner loop, and the voltage loop is the outer loop. When a sudden load is applied or the load current exceeds the current limit, the output current of the voltage regulator is limited within the rated current range, ensuring normal operation of the output and the voltage regulator. Simultaneously, the voltage loop also participates in regulation, limiting the output current of the voltage regulator within the rated current range, maintaining constant output current and voltage with sufficient adjustment margin; thus achieving protection. The heating element avoids excessive current and voltage surges, achieving a safe and reliable control effect and control accuracy. |
| Display parameters | Temperature, temperature range number, time period, remaining time, output power percentage, electricity Voltage, current, etc. |
| Button | It uses imported buttons with a lifespan of over 100,000 cycles and comes with an LED indicator. |
| Temperature profile setting | Employs an intelligent temperature controller, equipped with standard PID , AI-controlled APID , or MPT. It features multiple adjustment modes, self-tuning and self-learning functions, excellent control characteristics with no overshoot and no undershoot, 30- segment programmable control, and can achieve arbitrary slope temperature rise and fall control. It has programmable / operable commands such as jump (loop), run, pause, and stop, and allows modification of the program at any time during program operation. Employing an artificial intelligence adjustment algorithm with curve fitting capabilities, it can achieve smooth... Smooth curve control effect; |
| Multiple curve inputs | Group 1 has 50 segments, Group 2 has 24 segments, and Group 3 has 16 segments . |
| Computer Interface | RS485 RS232 USB |
| Random accessories | Two heating elements, two sets of rods, one instruction manual, one certificate of conformity, tubular electric... One road-specific crucible, two heat insulation plugs, and two sealing rings. |
| Includes main accessories | The above prices include vacuum flanges, water-cooled flanges, vacuum pumps, and standard pressure gauges, but do not include gas. Gas control and air conditioning are customized according to customer requirements. |
| Warranty coverage and period | The electric furnace is covered by a one-year free warranty (excluding heating elements and furnace tubes); the temperature controller, thermocouple , regulator, transformer, and voltage regulator are covered by a two-year free warranty; and the heating element will be replaced free of charge if it fails naturally within three months. |
| Shipping Information | |
| 1. The electric furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crate. | |
| 2. Free domestic door-to-door delivery (free delivery within city limits) | |
| 3. We will be responsible for any damage that occurs during the transportation of the electric furnace. | |
4. Logistics methods: Road, rail, ship (foreign trade export), air (foreign trade export) transportation; distance... For nearby locations, our company will arrange dedicated transportation (packaging includes wooden pallets and cardboard boxes). | |
