Equipment Brief Introduction

The LYL-18SQZ series high vacuum lifting furnace is mainly used for vacuum sintering and quenching of hard alloy, magnetic materials, ceramics, and powdered materials. The high-temperature sintering process for materials ensures reliable thermal and insulation design. The new electrode structure eliminates the phenomenon of electrode water leakage in high-temperature furnaces, and the replaceable parts in the heating system are easier to maintain and replace.

Primary Application

This equipment is widely used in universities, research institutions, industrial and mining enterprises, and is an ideal device for experiments and production in powder, electronics, metallurgy, ceramics, sulfur, new glass materials, chemicals, metal sintering, and metal heat treatment.  

Structural DescriptionStructure） 

Carbon steel housing, welded by a pressure vessel factory, ensuring gas tightness of the welds, free from blowholes, cracks, and other gas leakage points.

2. As required, constructed with a double-layer furnace shell, sealed with O-shaped silicone gaskets.

3. The furnace door seal is made with a wire-cutting flange, fitted with an O-ring of silicone, and locked with a handwheel.

4. Bottom furnace electric start, screw jack lifting, smooth and controllable lifting, well-sealed, no dropping for long periods.

5. Electrostatic powder coating on the outer surface of the furnace shell for rust prevention, looks elegant and generous.

6. Aluminum Oxide Polycrystalline Fiber High-Temperature Furnace Combustion Chamber, Aesthetically Pleasing and Energy-Efficient

7. Use well-known electrical appliances to ensure safe operation.

8. Temperature control and detection are fully implemented

Single platinum rhodium (S-type) ≤ 1500°C

Dual platinum rhodium (Type B) ≤ 1800℃

Vacuum System DescriptionVaccum System）

1. The vacuum system is a diffusion pump unit, consisting of a diffusion pump and a scroll vacuum pump. It includes a high vacuum diffusion pump, water-cooled baffle, scroll vacuum pump, electromagnetic vacuum gas filling valve, high vacuum pneumatic baffle valve (main valve), high vacuum pneumatic baffle valve preliminary exhaust valve, high vacuum pneumatic baffle valve (exit valve), preliminary stage pipeline gas filling valve, connecting pipeline, sealing rings, composite vacuum gauge, and power distribution cabinet, etc., forming a suction system.

2. This unit is not suitable for extracting gases that are corrosive to metals or cause chemical reactions with the pump oil. It can serve as a high vacuum acquisition device for high-tech equipment such as vacuum smelting, vacuum sintering, vacuum heat treatment, vacuum coating, vacuum brazing, and space simulation experimental facilities. The operating environment temperature is 5~40°C, with relative humidity not exceeding 85%, and the cooling water temperature is 25°C ±5°C.

3. The vacuum level is related to the suction capacity of the vacuum pump, the sealing of the chamber, and the degassing amount of the internal materials (such as the inner wall of the furnace, experimental devices, heat sinks, etc.). The ultimate pressure of this unit is 1×10-3 Pa, the operating pressure is 1×10-2 Pa, and the suction time is approximately 1 hour.

4. The diffusion pump cannot create vacuum independently; it must be preceded by a priming pump to lower the system pressure to within the starting pressure required by the diffusion pump, typically ≤10 Pa.

5. A new water-cooled baffle is installed at the intake of the diffusion pump, effectively preventing the return of oil vapor from the diffusion pump into the vacuum chamber, thus avoiding contamination of the experimental equipment.

6. To prevent the vacuum oil in the booster pump from flowing back into the diffusion pump cavity upon shutdown, an electromagnetic valve must be installed at the inlet of the preliminary vacuum, which will automatically isolate the system piping during shutdown.

7. Valves are all operated by pneumatic methods, offering easy operation.

8. Upon initiating the vacuum pump, this system features a preliminary evacuation pipeline, which directly draws the gas out without passing through the diffusion pump. This method prevents contamination of the diffusion pump by the gas within the evacuated container (moisture, volatiles, impurities). Once the pressure inside the container drops to 10 Pa, close the preliminary evacuation valve and open the baffle valve, and the diffusion pump will then start normal evacuation of the container.

Qualification & Honor

Quality Management System CertificationGB/T19001:2016/ISO 9001:2015； EUCECertification: "Luoyang City Model Enterprise for Civilization and Integrity in Business Operations"“China Electric Furnace Industry Brand”；“Quality, Service, Reputation - AAA Corporation”The products have passed inspections by testing institutions, and third-party certification can be provided upon request.

Main Functions & Features

Wide temperature range from 800℃ to 1800℃ (optional)

2. Vacuum level up to 10-3 Pa (optional)

3. Energy-saving and electricity-efficient, environmentally friendly and pollution-free (high-purity composite alumina furnace material)/Ceramic polycrystalline fiber, lightweight, low heat storage, energy-saving, with average half-power operation.

4. Easy to replace Energy-saving and time-saving (heating elements: resistance wire/silicon carbide rod/silicon molybdenum rod, long lifespan and easy replacement)

5. Individual control cabinet, easy to operate, more user-friendly

6. High temperature control accuracy (high-quality instruments, temperature control accuracy ±)1The thermometer can provide a third-party inspection certificate.

7. Evenly distributed furnace temperature (合理布局, balanced temperature field, no blind spots in the furnace cavity)

8. PLC touch screen temperature control with adjustable heating rate and automatic operation

9. Over-temperature, over-pressure, and over-flow automatic protection with red, green, and yellow three-color working status indicator lights

10. Available options for gas flowmeters include float type and mass flowmeters, enabling manual and automatic control of gas flow; also capable of shutting off gas flow that is not in use.

11. Broad Application Range: Universities, research institutions, industrial and mining enterprises, etc., for testing and production of powders, military, electronics, metallurgy, ceramics, glass, machinery, new material development, special materials, refractory materials, construction materials, chemicals, metal sintering, and metal heat treatment.

12. Double-shell construction, air-insulated, (with optional cold water unit)

13. Powder-coated shell with dual-color design, exquisitely elegant and generous appearance

14. Excellent reputation, numerous clients

15. Great value for money, comprehensive after-sales service, 1-year warranty, lifetime on-site repair

Main Technical Parameters

Selection Guide

Standard Accessories

Name		Image	Quantity	Description
High-temperature gloves			1Please provide the Chinese content you would like translated into American English.	Excellent comfort and keeps hands warm; cut-resistant, abrasion-resistant, and heat-resistant (up to 350°C, can be touched for 60 seconds, and 100°C for 180 seconds) durable.
Heating Element	Silicon carbide rod		2Branch	Silicon carbide components, with high-temperature usage, are hard and brittle. After shaping, they are used, such as silicon carbide rods and tubes, which can reach high-temperature heating under dry air conditions.1500100-120°C, for use under vacuum conditions; long-term use temperature of 1350°C under nitrogen atmosphere
	Silicon Molybdenum Rod		2Please provide the Chinese content to be translated.	Silicon molybdenum rods are heated to high temperatures in an oxidizing atmosphere, forming a dense quartz glass film on the surface to prevent further oxidation. Therefore, silicon molybdenum rods possess high-temperature oxidation resistance. In an oxidizing atmosphere, the temperature can reach1800°C, can be used as heating elements for industrial high-temperature furnaces in electronics, ceramics, magnetic materials, glass, metallurgy, refractory materials, etc.
Pot tongs			1Translate the following foreign trade supply-related content into American English, if there is no Chinese content, return it as is: [中文内容]	A common chemical instrument, typically used for holding crucibles. Generally made of stainless steel or hard, non-flammable, and non-oxidizable materials. 2. Use clean tongs. 3. When gripping a hot crucible with tongs, preheat the tips to prevent the crucible from cracking due to localized cooling. After use, place the tongs with the tips facing up on the table or a asbestos pad. 4. After the experiment, clean the crucible tongs and place them in the lab equipment cabinet for drying storage. 5. Use the bent section for holding crucibles; for other uses, use the pointed end. 6. Crucible tongs may be used independently as well as in conjunction with crucibles.

Optional Accessories Listnal Accessories List）

Special Note

Common Faults and Troubleshooting