Our tempering machines can produce tempered glass as large as 6000 x 3000 mm. Glass thickness ranges from 2.8 to 19 mm. Glass quality meets BS 6206, ASTM 1048, ANSI Z97.1, ECE R43  or comparable international standards. Low-E glass and reflective glass can be tempered. 

We manufacture following types of glass tempering furnaces:

In addition to our standard specifications, we supply many custom built glass toughening ovens to suit the exact needs of customers.

Tempering furnaces specially for shower door and bath enclosure. Please click to see detail

Click here to download Catalogue(pdf.9.5m)

Heating Knowlege on glass tempering/toughening:

Radiation Furnace: They are the first generation machines that are used to temper most of the glasses. The principle is very simple. In this kind of machine the glass is heated directly using through heating elements due to which the heating is slow and as a result the glass spends more time on the rollers in its soften state and hence has a high degree of optical distortion.        

Forced Convection furnace: They are the latest generation machines in which the heating is done by a forced convection technique. By this technique the heating is more even and is nearly 25 % faster. As a result the glass spends less time on the rollers in its soften state and has significantly less optical distortion. In this type of furnace the glass is indirectly heated, the elements first heat the plates and then a turbulence of air is created which transfers the heat to the glass in a uniform way. This furnace is designed to temper all kinds of glasses whether it be clear, tinted, reflective or Low e. As a result, the glass that comes out is of relatively superior quality and is tempered in accordance to the standards.

Glasstem's tempering furnaces:

·  ERF: Economical Radiation Furnaces – flat tempering ranging from 1,000mm (40") x 2,400mm (96") to 1,500mm (60") x 3,600mm (144"), specially designed for shower door and bath enclosure capability. Glass thickness of 5-19mm ( 3/16" to 3/4" )

·  SRF Standard Radiation Furnaces - flat tempering from 300mm x 400mm to 3000mm x 6,000mm , featuring many sophisticated designs that allows more flexibility. Superior optical quality is readily achieved even on soft low-e coated glass by adding ECHS (Enhanced Convection Heating System).

·  BFT Bent & Flat Tempering – mould less cylindrical bending, from 300 x 200 mm to 3500 x 2500 mm.

·  Glasstem’s HST Heat Soak Test Oven – spontaneous broken of tempered glass can be avoided by submitting the tempered glass to a heat treatment cycle based on European Standard EN14179.
·  ECHS convection technology - The Enhanced Convection Heat System is the result of recent developments of convection technology, and greatly enhances the performance of Glasstem’s furnaces

1.     Economical Radiation Furnace

Features:

·Specially Designed for Small to Medium Glazers

·Minimum Capital Investment

·Minimum Operation Costs

·Minimum Maintenance

·Low Power Heating Installation

·Easy---Touch Screen Operation with Fully Automatic PLC Control

·Software in English or other Language

·Oscillation & Blower Driven by Frequency Inverters

·Convection Heat Balance Systems Installed

ERF Specifications:

2.     SRF Standard Radiation Furnace:

SRF Specifications :