The Glass tempering furnace equipment is a crucial industrial equipment used for glass processing. It is mainly applied in the tempering process of glass sheets or glass plates, which involves heating and quenching the glass to achieve the desired mechanical properties and optical characteristics. This equipment is essential for producing high-quality glass products that are used in various industries, including construction, automotive, and furniture. Our Glass tempering furnaces are designed to heat glass sheets or glass plates to temperatures ranging from 600°C to 70°C, depending on the type of glass being processed. The furnace is usually divided into three zones: a heating zone, a temperature holding zone, and a cooling zone. The heating zone is responsible for heating the glass to the desired temperature, while the temperature holding zone maintains the temperature of the glass sheets or glass plates constant. Finally, the cooling zone quenches the glass to achieve the desired mechanical properties. They can be either batch type or continuous type, depending on the type of production required. Batch type furnaces are suitable for small to medium-sized batches, while continuous type furnaces are suitable for high-volume production. Batch type furnaces usually have a smaller footprint and are easier to maintain, while continuous type furnaces offer higher productivity and less down time.

Series of our glass tempering furnace

H Series

Model	Max Load Area(mm)	Min.Glass Size(mm	Glass Thickness (mm)	Production Rate (5mm batch/ hour)	Minimum Peak Demand (KVA)	Bow (5mm clear glass)	Local wave mm/300 (5mm clear glass)
PG2436DT	2440*3660	100*300	3.5-19	16-20	700	1%	0.06
PG2450DT	2440*5000	100*300	3.5-19	16-20	900
PG2460DT	2440*6000	100*300	3.5-19	16-20	1000
PG2850DT	2800*5000	100*350	4-19	16-20	1000		0.07
PG2860DT	2800*6000	100*350	4-19	15-19	1200		0.07
PG3060DT	3000*6000	300X450	4.5-19	15-19	1200		0.08
PG2436DTS	2440*3660	100*300	3.5-19	24-30	1100		0.05
PG2450DTS	2440*5000	100*300	3.5-19	24-30	1500
PG2460DTS	2440*6000	100*300	3.5-19	24-30	1800
PG2850DTS	2800*5000	100*350	4-19	24-30	1600		0.06
PG2860DTS	2800*6000	100*350	4-19	23-29	1900
PG3060DTS	3000*6000	300X450	4.5-19	23-29	2000

Product Advantages

● Domestically advanced forced convection heating technology can efficiently heat triple silver low-e of 0.01 emissivity.
● Intelligent remote monitoring and control system.
● Slave screen in the unloading end.
● Service page makes trouble shooting much easier.
● PID quenching air pressure control give 100%insurance that each and every panel is well tempered.
● Siemens PLC system enables reliability and precision in temperature control,and offers digital/O and Ethernet port.
● Intelligent power consumption Management System.
● Powerful back up battery drive system with long-life batteries.

JXSERIES

Model	Max Load Area (mm)	Min.Glass Size (mm)	Glass Thickness (mm)	Production Rate (5mm batch/ hour)	Minimum Peak Demand(KVA)
PG2436DT	2440*3660	100*300	3.5-19	16-20	700
PG2450DT	2440*5000	100*300	3.5-19	16-20	900
PG2460DT	2440*6000	100*300	3.5-19	16-20	1000
PG2850DT	2800*5000	100*350	4-19	16-20	1000
PG2860DT	2800*6000	100*350	4-19	15-19	1200
PG3060DT	3000*6000	300X450	4.5-19	15-19	1200
PG2436DTS	2440*3660	100*300	3.5-19	24-30	1100
PG2450DTS	2440*5000	100*300	3.5-19	24-30	1500
PG2460DTS	2440*6000	100*300	3.5-19	24-30	1800
PG2850DTS	2800*5000	100*350	4-19	24-30	1600
PG2860DTS	2800*6000	100*350	4-19	23-29	1900
PG3060DTS	3000*6000	300X450	4.5-19	23-29	2000

Product Advantages
● Seamless Forced Convection Heating Technology@for bulk production of low-e tempered glass.
● To installation of FC fans, with high efficiency, extended service life while air cooling system makes maintenance much easier.
● More intensive heating zones of matrix control offers a more even heating.
● Innovative pass-through chiller considerably saves energy while dwarfing peak demand.
● Diffused and Zero-Overlapping Chiller nozzles offers full guarantee of uniform quenching thus to minimize anisotropy.
● Service page makes trouble shooting much easier.
● Siemens PLC system enables reliability and precision in temperature control.

High Stress Tempering Line

XD SERIES

Model	Max Load Area(mm)		Glass Thickness (mm)			Minimum Peak Demand(KVA)	High stress energy consumption (5mm)
	Clear glass	Hi-stress and borosilicate 4.0 glass	Clear glass	Hi-stress glass	Borosilicate.4.0 glass	Minimum Peak Demand(KVA)	High stress energy consumption (5mm)
PG2136DT	2100*3660	2100*3660	4-19	≥5	≥6	1000	4.8kwh/m2
PG2160DT	2100*6000	2100*6000	4-19	≥5	≥6	1250	4.8kwh/m2
PG2850DT	2800*5000	2800*5000	4-19	≥5	≥6	1300	5kwh/m2
PG2860DT	2800*6000	2800*6000	4-19	≥5	≥6	1500	5kwh/m2

Product Advantages
● 6mm tempered glass with surface compressive stress not less than 180MPa.
● Surface stress difference across any a single panel is kept under5MPa.
● Specially designed heating furnace can temper 6mm borosilicate 4.0 glass.
● High efficiency centrifugal fans with vibration detector make an energy saving and highly reliable system.
● Intelligent remote monitoring and control system.
● Service page makes trouble shooting much easier.

Continuous Tempering Line

XD SERIES

Width(mm)	Thickness (mm)	Recommended furnace length(m)	Production(m 2/Day)	Peak Demand(KVA)	Recommended Industry
1300	2.5-4	42	30,000m²/Day(D)·3.2mm	3800	Photovoltaic industry
		48	35,000m2/Day(D)·3.2mm	4200
		60	44,000m2/Day(D)·3.2mm	5000
1400	2.5-4	42	32,000m²/Day(D)·3.2mm	3900
		48	37,000m2/Day(D)·3.2mm	4300
		60	47,000m2/Day(D)·3.2mm	5200
1800	4-12	24	14.000m2/Day(D)·5mm	2200	Architecture industry
		30	18,000m2/Day(D)·5mm	2800
		36	22,000m2/Day(D)·5mm	3400
2100	4-12	24	16,000m2/Day(D)·5mm	2600
		30	21,000m2/Day(D)·5mm	3100
		36	26,000m2/Day(D)·5mm	3800

Product Advantages
● Seamless Forced Convection Heating Technology@for bulk production of low-e tempered glass.
● Special chiller design enables bulk production of heat strengthened glass.
● Intelligent remote monitoring and control system.
● Slave screen in the unloading end.
● Service page makes trouble shooting much easier.
● Siemens PLC system enables reliability and precision in temperature control,and offers digital/O and Ethernet port.
● Intelligent power consumption Management System.
● IR scanner system.(Optional)
● Backup DC drives working on powerful UPS.

Bending and Tempering System

XD SERIES

Lengthwise Bender Chiller Technical Requirements

Arc (mm)	Adaptive glass width (mm)	Min R (mm)	Thickness (mm)
500	≤2400	300	5~12
800	≤2400	420	5~12
1000	≤2400	500	5~12
1200	≤2800	600	5~12
1500	≤2800	700	5~12
1800	≤2800	800	5~12

Cross Bender Chiller Technical Requirements

Arc (mm)	Adaptive glass width (mm)	Min R (mm)	Thickness (mm)
500	≤2400	300	5~12
800	≤2400	420	5~12
1000	≤2400	500	5~12
1200	≤2800	600	5~12
1500	≤2800	700	5~12
1800	≤2800	800	5~12
2000	53000	900	5~12
2200	≤3000	1000	5~12
2500	≤3000	1100	5~19
3000	≤3300	1250	5~19
5000	≤3300	2500	6~19

Product Advantages
● The mechanism delicately combines mechanical gemels with value correction and compensation to enable quick and accurate forming. Each and every joint moves in a controlled manner. Simple and reliable structure improves reliability.
● The counting encoder monitors the arc forming and adjustment, which can easily observe and adjust the size of the bending radius, making the operation convenient and fast.
● Discrete and non stacked air hole layout can effectively reduce the wave.022

Features of Glass Tempering Furnace Equipment

We have variety of features standard in our machines as well as optional features which you can choose and configure and enhance your machine.

Automatic Cooling Nozzle Positioning

Cooling unit top nozzle is positioned automatically depending on glass thickness. In order to prevent glass breaks and surface fluctuations, the Screw Jack (Trapezoidal Spindle) is positioned precisely and reduced due to positioning errors compared to chain systems.

Regional Temperature Control

Thanks to heat control system infrastructure homogeneous heating is automatically distributed for entire heat zones. With CMS software technologies and infrastructures, heating temperature of the zones are controlled instantly depending on glass type and its recipe.

Automatic Glass Bending Unit

Automatic glass bending unit (Opt. Y) optionally can be integrated to this model of glass tempering furnace. It is designed to make tempered bend glass at desired radius. The glass bending unit is controlled by a servo motor and can precisely bend the glasses with ease.

Recipe Management

In this machine we offer advanced recipe management system which can save your custom settings like different glass types, different glass thickness and many more information for later usage which makes the usage of the machine more easy for any operator who use the machine.

Operator Panel

We offer advanced but very easy to use control panel system which improves the operability of the machine, but also offer an outstanding design and advanced technology. This innovative control panel system we have developed comes with remote control access system for aftersales purposes.

Remote Access System

Remote technical assistance system based on a set of software tools that allows authorized staff of our after sales services to manage maintenance or assistance tasks anywhere in the world quickly and efficiently. Access via the Internet is always done with the prior consent of the customer.

The Process of Glass Furnace Tempering Equipment

Preparation: The first step in glass furnace tempering is the selection of suitable glass. Typically, it involves using a high-quality, low-iron glass that is free of impurities. The glass is cut and shaped to the desired dimensions. The furnace at Techni-Glass accepts glass up to 82" x 156" in size and 3.2 mm – 19 mm in thickness.

Heating: The glass is placed into a tempering furnace, where it is heated to a temperature of around 620 to 680 degrees Celsius (1150 to 1250 degrees Fahrenheit). This temperature is just below the glass's softening point.

Quenching: After reaching the desired temperature, the glass is rapidly cooled using high-pressure air jets. This quick cooling process induces surface compression while allowing the interior to remain in a state of tension.

Final Inspection: The tempered glass is thoroughly inspected for any defects, ensuring its quality and safety.

Reminders When You Buy Glass Tempering Furnace

Locate the Market and Select Features

First of all, you should start from considering your tempered glass market and position the tempering furnace function. At present, the main tempering furnaces in the market are: flat tempering furnace, bending tempering furnace, flat tempering furnace with bending section, bending bidirectional tempering furnace, continuous tempering furnace, and unequal arc tempering furnace. Different types of tempering furnaces have different uses, and you can choose the tempering furnace function according to your needs. If you need to process Low-E glass, be sure to choose a convection tempering furnace, because the forced convection system tempering furnace is suitable for processing tempered Low-E glass and coated glass that with different heat absorption rates on up and down sides, so that it can meet the tempering process of high-quality building and furniture flat glass, etc. The types of tempered glass are: online Low-E glass, offline Low-E (E=0.02) glass, ultra-clear glass, screen printing glass, patterned glass, colored glass, clear glass, etc. Of course, if you want a wider product coverage, you can consider a flat-bending two-way tempering furnace, which can be used for both flat glass and curved glass. Of course, the cost of this kind of tempering furnace will be relatively high.

Glass Processing Thickness

Different glass thicknesses will determine the type of blower used in the tempering furnace, resulting in a great difference in the price of the tempering furnace. When you choose a tempering furnace, you must carefully decide whether to start at 4mm or 5mm. Glass for construction engineering generally requires a thickness of 5mm to start. If there is Low-e glass, a convection glass tempering furnace with a larger width and a higher loading rate should be selected;

For interior decoration, the sliding door glass generally requires a thickness of 4mm to start, and there is no Low-e requirement. You can choose a radiant glass tempering furnace with a moderate width and a good loading rate;

Glass for household appliances is generally made of thin glass, small in size and high in quality. Small-sized single-chamber, double-chamber or continuous glass tempering furnaces can be selected according to output requirements;

Solar photovoltaic glass generally uses thin glass with a thickness of 2.8mm-3.2mm, with a fixed size and large output, which is suitable for continuous glass tempering furnaces;

Automobiles, instruments, etc. belong to special glass, and special tempering furnaces are required.

Site Area

Different furnace types, such as flat tempering furnace, bending tempering furnace, flat and bending tempering furnace, double-chamber furnace, continuous furnace, etc., have great differences in longitudinal length. Customers should select the type according to the actual reserved area. In addition, Not only the placement of equipment, but also the space required for production, the placement of glass before loading and finished products after unloading, etc.

Power Load

The installed power of different furnace types is different. Taking 4mm white glass tempering as an example, the installed power of 2000x3000mm radiation furnace is about 400KVA, and the installed power of 2440×3660 convection furnace is about 630KVA. Enterprises should consider the installed capacity and expansion of transformers accordingly.

Glass Tempering Furnace Operation Importance

The operation of the glass tempering furnace should be intelligent, simple and easy to operate, reduce the dependence on people, improve the quality and yield, and reduce the production cost.

Glass Tempering Furnace Stability

The glass tempering furnace must operate stably and ensure that the equipment operates smoothly under normal conditions, so as to fully guarantee the customer's production requirements; if the equipment fails frequently during operation, it will not only increase the loss rate of the float glass, but also reduce the production efficiency, increase production costs, and even cause delays or changes in product delivery time, damage reputation, and seriously damage the interests of producers.

FAQ

Q: 1.What is a tempering furnace?

A: A tempering furnace is a type of industrial oven that uses heating technology. The heat strengthens finished pieces of glass and makes them safer in the event that they would break. This piece of equipment is often found in glass fabrication and/or manufacturing facilities.

Q: 2.How is tempered glass made?

A: To temper the glass, tempering furnaces heat glass to an extremely high temperature, usually over 600 degrees Celsius. Then, using air jets, the furnace uniformly and rapidly cools the glass. The rapid cooling process is called quenching. It is during quenching that the glass undergoes extreme compression and gains strength against impacts and heat shock. The heating and cooling process that happens during tempering strengthens the glass and decreases the risk of breakage or shattering. However, in the event that the tempered glass does break, it shatters into several tiny pieces with spherical edges rather than large, sharp shards. This reduces the risk of serious injury.

Q: 3.What is a glass tempering furnace?

A: A glass tempering furnace is a specialized piece of equipment used in the glass manufacturing industry to strengthen and increase the durability of glass. It is a crucial part of the glass tempering process, which involves heating and cooling glass in a controlled manner to create a strong, impact-resistant product. In this article, we will explore the ins and outs of glass tempering furnaces, their working principles, and their significance in the production of tempered glass.

Q: 4.What is combined glass tempering furnace?

A: A combined glass tempering furnace is primarily comprised of loading table, pre-heating section, heating section, tempering section, cooling section, unloading table, and control system. The pre-heating section usually maintains a temperature ranging from 450 to 500 degrees Celsius while the heating section maintains approximately 700 degrees Celsius in the chamber. This type of furnace can be used to temper offline glass and high grade ordinary glass. Combined glass tempering furnace can minimize the heating time. Primary glass quality issues associated with long heating time in the oven: increased possibility of leaving scratches on the bottom surface of glass and more surface waves, affecting surface quality and optical properties of glass, causing declining in product quality of tempered glass. Combined glass tempering furnace is an excellent solution to this problem. By minimizing the risk of defects during heating process, it achieves maximum productivity while ensuring the quality or the tempered glass.

Q: 5.How to make glass tempering furnace profitable?

A: Generally speaking, the glass tempering furnace accounts for the largest share of the plant's total electricity consumption. The glass tempering machine adopts good comprehensive energy-saving technology, which can save a lot of money for you. For the glass of 4mm thickness or more, the main energy consumption unit of the glass tempering furnace is in the heating section. The amount of heat needed to heat the glass is constant. Reducing heat loss during machine operation is a great way to save energy. The heat loss in the heating part comes mainly from the furnace wall and the convection structure.

Q: 6.What furnace is used in glass making?

A: There are two types of glass melting furnaces: Pot furnaces and Tank furnaces. Pot Furnaces are structures built of refractory materials in which there is no contact between the furnace and the glass. Glass is melted in several pots made of refractory materials which are resistant to glass attack at high temperatures.

Q: 7.What is the life expectancy of a glass furnace?

A: Also a glass furnace runs 24/7 and cannot be stopped and cooled down during its lifetime (15-18 years). Most technologies can therefore only be installed during a furnace rebuild.

Q: 8.What is the opening to a glass furnace called?

A: A glory hole is a type of reheating furnace that is used in glass blowing. It provides a controlled source of heat to reheat the glass piece during the creation process, allowing the glass artist to work with the material effectively.

Q: 9.What are the hazards of glass furnace?

A: Glass melting furnaces melt the mixed raw materials to enable working the molten glass into a finished product. The hazards associated with glass melting furnaces are fuel firing, refractory damage and molten glass breakout.

Q: 10.How are glass furnaces powered?

A: Most furnaces are designed to use natural gas but are capable of using alternate fuels-oil, propane and electricity-if necessary. Furnaces range in size from about 450 to more than 1,400 square feet of melter surface.

About us

Yuntong Glass is a high tech company located in Qinhuangdao Industrial Park, specializing in research, design and manufacturing glass production and processing machines. Started in 1989, it has been the 1st company making flat tempering furnace in China. Now Yuntong offers a wide choice of tempering furnaces for flat tempering furnace and exported various machines to over 60 countries around the world.

If you are looking for glass tempering furnace equipment manufacturer, Yuntong is an ideal choice! Contact us today.

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