Product details
Industrial Furnace

Large Vacuum Atmosphere Furnace LYL-18ZKL

DESCRIPTION:

  • Model No: LYL-18ZKL
  • Heating Rate: ≤0.1-40°C/min
  • Rated Voltage: 220V/380V
  • Chamber Size: Customizable
  • Design Temperature: 800°C-1800°C
  • Temperature Control Accuracy: ±1°C
  • Temperature Measuring Element: K (0-1300°C) / S(0-1600°C)/ B (0-1820°C)
//

PRODUCT INTRODUCTION

Brief Introduction

The LYL-18ZKL large vacuum atmosphere furnace introduces internationally advanced technology, environmentally friendly electric furnace, developed through independent R&D by integrating advanced technologies. It features a sophisticated, rational structure and a refined, aesthetically pleasing design. The outer casing is constructed from high-quality cold-rolled steel plate, processed by CNC machine tools, and finished with a premium, durable two-tone imported epoxy powder electrostatic spray coating, offering excellent resistance to high temperatures and corrosion. High-quality resistance wires, silicon carbide rods, or molybdenum disilicide rods serve as heating elements. The double-layer furnace shell with an air insulation layer maintains a low surface temperature. Key advantages include a balanced temperature field, low exterior surface temperature, fully adjustable heating rates, and high energy efficiency. The furnace chamber is constructed from ceramic fiber materials using CNC processes, providing exceptional thermal shock resistance, tolerance to rapid heating and cooling cycles, high corrosion resistance, and resistance to sagging, crystallization, and dusting, ensuring a long service life with no pollution. The control system employs microcomputer-based AI regulation technology, featuring PID adjustment, fully automatic control, and self-tuning capabilities. It supports multi-segment programmable profiles for various heating and holding steps, achieving high temperature control accuracy. The system utilizes integrated thyristor modules and phase-shift triggering. The protection system includes independent safeguards against over-temperature, over-voltage, over-current, leakage, and short circuits. The furnace boasts a high degree of automation, with all performance indicators meeting advanced standards.

This furnace is equipped with a vacuum pump (Model: 1 set -8 type), and a condenser tube assembly is required between the vacuum pump and the furnace interface. Operating Atmosphere: Supports atmosphere protection (compatible with various inert protective atmospheres) and includes a pre-configured vacuum connection interface.

Application

This equipment is widely used in universities, research institutes, and industrial and mining enterprises. It is an ideal device for experiments and production involving powders, electronics, metallurgy, pharmaceuticals, ceramics, sulfur, glass (new materials), chemicals, metal sintering, and metal heat treatment.

Qualification & Honor

  • ISO 9001:2015 Quality Management System Certification


  • CE Certification (EU Conformity)


  • Luoyang City "Model Enterprise for Civilized and Honest Operation"


  • "Leading Brand in China's Electric Furnace Industry"


  • "AAA Enterprise for Quality, Service, and Creditworthiness"


  • Products can withstand testing by authoritative inspection institutions; third-party verification certificates can be provided upon request.

Main Functions & Features

  1. Energy-saving and Eco-friendly: The furnace chamber is constructed from high-purity composite alumina/ceramic polycrystalline fiber. It is lightweight with low heat storage capacity, ensuring high energy efficiency—the unit typically operates at half power on average.


  2. Convenient Maintenance & Time-saving: Equipped with high-quality heating elements (resistance wire/silicon carbide rods/silicon molybdenum rods) that offer a long service life and easy replacement.


  3. Integrated Design: Features an integrated structure for flexible operation, minimizing connection failures and saving valuable workspace.


  4. High Temperature Control Precision: Utilizes premium instruments with a temperature control accuracy of ±1°C. Instruments can be supplied with third-party inspection certificates upon request.


  5. Excellent Furnace Temperature Uniformity: Rational internal layout ensures a balanced temperature field with no dead zones within the chamber.


  6. Microcomputer Programmable Control: Features adjustable heating rates and fully automated operation, eliminating the need for constant manual supervision.


  7. Comprehensive Safety Protection: Automatic alarms and protection systems for over-temperature, over-pressure, over-current, leakage, thermocouple failure, and heating element breakage.


  8. Side-opening Door: The furnace door opens sideways for convenient access.


  9. Wide Range of Applications: Widely used in universities, research institutes, industrial and mining enterprises for powder processing, military applications, electronics, metallurgy, pharmaceuticals, ceramics, glass, machinery, new material development, special materials, refractories, building materials, chemicals, metal sintering, and heat treatment for both experimental and production purposes.


  10. Double-layer Shell & Air Convection Insulation: Designed with double-layer housing and an air-cooled convection layer to keep the exterior cool.


  11. Spray-coated Exterior: Features a beautifully finished spray-coated shell with a two-tone color scheme for a professional appearance.


  12. Proven Reputation: Established brand with a large and diverse customer base.


  13. High Cost-performance & After-sales Service: Excellent value for money backed by comprehensive after-sales support, including a 1-year warranty and lifetime on-site repair/maintenance services.


  14. Round Furnace Door: The round door design ensures lower surface temperatures on both the door and body, enhancing operational safety.


  15. Superior Sealing Performance: Equipped with O-type sealing rings and secured by four handwheels for compression sealing. This ensures excellent airtightness, uniform gas sintering, and zero leakage during 72-hour pressure holding tests. It also allows for convenient door operation.(Note: Traditional square doors rely on perimeter screws and rubber pads, which fail to meet sealing requirements, waste gas, risk oxidation during firing, suffer from thread stripping over time, and cannot meet technical standards.)


  16. New Design: A new generation of vacuum atmosphere furnaces featuring specialized sealing designs.


  17. Gas Detection (Optional): Configurable with oxygen analyzers to monitor exhaust gas content (multiple gas detectors available as options).

//

PRODUCT PARAMETERS

Main Technical Parameters

Item

Specification

Rated Voltage

220V/380V

Design Temperature

800℃, 1000℃, 1200℃, 1400℃, 1600℃, 1700℃, 1800℃

Heating Rate

≤0.1-40℃/min (adjustable)

Heating Elements

High-quality imported resistance wire / High-quality U-type silicon carbide rod / High-quality U-type silicon molybdenum rod

Temperature Control Accuracy

±1℃

Vacuum Level

-0.1MPa (High vacuum can reach 300Pa)

Temperature Control Mode

Microcomputer control, PID regulation, intelligent microcomputer control, multi-segment programmable temperature control curve, no need to watch (automatic heating, holding, power off when door is opened)

Temperature Measuring Elements

K (0~1300℃) / S (0~1600℃) / B (0~1820℃)

Furnace Chamber Material

Ceramic polycrystalline fiber / Alumina fiber / Composite alumina fiber / High purity composite alumina fiber / Imported fiber

Vacuum Pump

Rotary vane mechanical pump

Flow Meter

Float flow meter

Permissible Gas

Inert protective gases such as nitrogen, argon, oxygen can be introduced

Oxygen Content in Furnace Chamber

Continuous monitoring of oxygen content in the furnace chamber, detectable down to ≤1000ppm oxygen content

Furnace Door Structure

Front-side opening

Cooling Method

Double-layer shell, air insulation layer

Surface Temperature Rise

≤30℃

Accessories as per model

2 heating rods, 2 sample holders, 1 crucible tong, 1 pair of refractory gloves, 1 furnace bottom plate, 1 copy each of manual and certificate of conformity

Selection Guide

Model

Furnace Chamber Dimensions (DepthWidthHeight mm)

Furnace Chamber Volume (L)

Power Supply Voltage (V)

Power (kW)

Temperature Control Accuracy

LYL-18ZKL-1

200 * 150 * 150

4.5

220

4

±1℃

LYL-18ZKL-2

300 * 200 * 120

7.2

220

6

±1℃

LYL-18ZKL-3

300 * 200 * 150

9

220

8

±1℃

LYL-18ZKL-4

300 * 200 * 200

12

220/380

10

±1℃

LYL-18ZKL-5

400 * 250 * 160

16

380

12

±1℃

LYL-18ZKL-6

400 * 300 * 300

36

380

14

±1℃

LYL-18ZKL-7

500 * 500 * 500

125

380

25

±1℃

LYL-18ZKL-8

700 * 500 * 500

175

380

30

±1℃

LYL-18ZKL-9

800 * 500 * 500

200

380

40

±1℃

LYL-18ZKL-10

800 * 800 * 800

512

380

90

±1℃

LYL-18ZKL-11

1200 * 800 * 800

768

380

100

±1℃

LYL-18ZKL12

1000 * 1000 * 1000

1000

380

120

±1℃

LYL-18ZKL-13

1500 * 1000 * 1000

1500

380

150

±1℃

LYL-18ZKL-14

2000 * 1000 * 1000

2000

380

180

±1℃

Temperature Category

800℃-1800℃ Optional

Customization

Non-standard models can be customized according to customer requirements, including chamber size, voltage, power, operating temperature, control system, etc.

//

STANDARD ACCESSORIES

Standard Accessories

Name

Picture

Quantity

Description

High-temperature Gloves

1.png

1 pair

Excellent comfort, keeps hands warm; Cut-resistant, abrasion-resistant, and heat-resistant (withstands contact with 350°C heat for 60 seconds, 100°C heat for 180 seconds). Durable.

 

Heating Elements

Silicon Carbide Rods

2.png

2 pieces

Silicon carbide elements, characterized by their high operating temperature, hardness, and brittleness, are ready for use after formation. For instance, silicon carbide rods and tubes, made from silicon carbide, can achieve a heating temperature of up to 1500°C under dry air conditions. Under vacuum conditions, the operating temperature ranges from 1000°C to 1200°C, while in a nitrogen atmosphere, the long-term use temperature reaches 1350°C.

Silicon Molybdenum Rods

3.png

2 pieces

Silicon molybdenum rods, when heated to high temperatures in an oxidizing atmosphere, form a dense layer of quartz glass on the surface, protecting them from further oxidation. Therefore, silicon molybdenum rods exhibit high-temperature oxidation resistance. In an oxidizing atmosphere, they can reach temperatures up to 1800°C, making them suitable as heating elements for high-temperature furnaces in industries such as electronics, ceramics, magnetic materials, glass, metallurgy, and refractories.

Crucible Tongs

4.png

1 piece

1.A common chemical instrument typically used for handling crucibles. Generally made of stainless steel or other non-flammable, oxidation-resistant hard materials.


2.Clean crucible tongs must be used.


3.When using crucible tongs to pick up a hot crucible, the tips should be preheated first to prevent the crucible from cracking due to localized cooling. After use, the tongs should be placed on a table or asbestos mat with the tips facing upward.


4.After the experiment, crucible tongs should be cleaned, dried, and stored in the laboratory equipment cabinet.


5.Use the curved section for gripping crucibles; the tips are for other purposes.


6.Crucible tongs are not necessarily used exclusively with crucibles; they can also be used independently.




Furnace Bottom Plate


image.png




1 piece

The ceramic furnace bottom plate boasts excellent high-temperature resistance, abrasion resistance and load-bearing performance. It effectively protects the furnace base from wear and tear, thereby extending the equipment's service life.


Optional Accessories List

Integrated Furnace Temp. Control

Touchscreen Instrument

Remote Auxiliary Module

Observation Window

Exhaust Hole & Chimney

Hot Air Fan

Crucible, Casserole, Material Rack

Multi - material Table

Furnace Bottom Plate

Air Blowing

Thermocouple

Centralized Control Industrial Computer

Caster Wheel

Multi - point Temperature Measurement

Exhaust Gas Purification Device

Hydraulic Lifting (Manual/Auto)

Material Table Tilting

Vacuum & Atmosphere


Special Note

Item

Content




Factory Environment

1. Indoor use;


2. Ambient temperature range: ±5~45℃;


3. Relative humidity of surrounding environment does not exceed 85%;


4. No conductive dust, explosive gases, or gases that can severely damage metals and insulating materials around the furnace.





Safety Protection

1. When using the electric furnace for the first time or after long-term shutdown, baking is required; otherwise, it is easy to cause furnace cracking.


2. Keep clean regularly and check whether the furnace wiring is in good contact.


3. When using the electric furnace, the furnace temperature shall not exceed the rated temperature to avoid damaging the heating elements. It is forbidden to pour various flammable liquids and molten metals into the furnace.


4. During operation, generally below 300℃, the heating rate should not be too fast, because the furnace chamber is cold at the beginning of heating and needs to absorb a lot of heat.







Friendly Tips

1. To ensure the normal service life of the equipment, please do not run at the rated temperature for a long time.


2. Carefully check and verify the quantity of goods and accessories upon receipt to avoid inconvenience caused by missing or incorrect items.


3. To extend the service life of the instrument, we recommend a heating rate and cooling rate of 10℃/min.


4. The cooling rate should not exceed 5℃/min.


5. This furnace has no vacuum sealing structure, so flammable and explosive gases must not be introduced.


6. After this furnace has been used for a period of time, slight cracks may appear in the furnace chamber, which is a normal phenomenon and will not affect usage. At the same time, it can be repaired with alumina coating.

Common Faults & Trouble Shooting

Fault Phenomena

Fault Causes

Troubleshooting Methods

No power indication when turning on the control power switch

Control circuit issue, blown fuse, or no power supply

Check for short circuits, rectify, and replace the fuse

Voltage present but no current during equipment operation

Heating element broken

Replace the heating element

Instrument PV display shows the maximum temperature for the corresponding thermocouple type

Thermocouple short circuit

Replace the thermocouple

All power supplies normal but furnace does not heat up

Main control circuit damaged

Notify a qualified technician for repair


//

OUR STRENGTH

STRENGTH

The company specializes in various high-precision electric furnaces and kilns

QUALITY

Every product undergoes multiple quality inspections before leaving the factory to ensure stable operation of each one

FULL RANGE

The product range is diverse and comprehensive, meeting the diverse needs of users

SERVICE

Provide quality assurance services as required, offer free repairs for quality issues, and provide free technical support

//

CONTACT US

PRODUCT RECOMMENDATION

Product Center
Contact Us WhatsApp Phone:+8615937918206 Email: malin@lyheat.com