A glass tempering furnace is one of the most important investments in a tempered glass factory. The right choice depends on glass size, thickness range, production capacity, energy requirement, Low-E glass processing, factory utilities and the upstream equipment before tempering.
This buying guide is written for buyers who are comparing tempered glass production equipment before requesting a quotation. It explains what to confirm first, how to read furnace specifications, and what information Enoble Glass needs for a practical configuration proposal.
Start With the Product You Need to Temper
Do not choose a furnace only by the maximum loading size. A factory producing 4 mm building glass, 6-12 mm architectural glass or thick interior glass will have different output and energy expectations. The final product decides the useful furnace size, heating setup and handling workflow.
| Buying Factor | What to Confirm | Why It Matters |
|---|---|---|
| Glass size | Maximum glass size, common daily production size and minimum size. | Furnace model selection and line layout must match the glass sizes actually produced. |
| Thickness range | Common and maximum thickness, such as 4 mm, 5 mm, 6 mm, 8 mm, 12 mm or 19 mm. | Capacity, heating time and energy consumption change significantly by thickness. |
| Glass type | Clear float glass, colored glass, screen-printed glass or Low-E glass. | Different glass surfaces may require different heating and convection control. |
| Output target | Loads per hour, square meters per shift and planned working shifts. | Output planning affects furnace size, blower selection and upstream equipment matching. |
| Factory utilities | Power capacity, compressed air, workshop foundation and installation space. | Utility preparation affects installation schedule and final technical agreement. |
SC-E-2436 as a Standard Configuration Example
As an example, the Enoble SC-E-2436 Glass Tempering Furnace is a horizontal forced-convection flat glass tempering furnace for 4-19 mm glass. It belongs to Enoble’s glass tempering systems category. The supplied standard configuration lists a maximum loading area of 2440 x 3660 mm, with thickness-specific maximum glass size limits.
| Reference Item | SC-E-2436 Supplied Data | Buyer Note |
|---|---|---|
| Glass thickness | 4-19 mm | Confirm whether your main orders are thin glass, medium-thickness glass or thicker flat glass. |
| Maximum loading area | 2440 x 3660 mm | Loading area is not the same as every thickness limit; check the thickness-specific table. |
| 4 mm capacity reference | 20-22 loads/hour | Actual output depends on loaded area, glass color, process recipe and operating conditions. |
| Installed power | 965 kW | Electrical capacity should be checked before contract and installation planning. |
| Minimum power-supply capacity | 630 kVA | Confirm local power supply and transformer capacity early. |
| Glass types listed | Clear, colored, screen-printed and Low-E glass | Low-E production should be discussed with exact coating type and target product. |
Thickness Affects Capacity and Energy Use
Many buyers compare furnaces only by maximum size, but thickness has a direct effect on production capacity. A model that produces thin glass at a higher load rate will process thicker glass at a lower load rate. This is why RFQ information should include both maximum thickness and the most common daily thickness.
| Glass Thickness | SC-E-2436 Listed Capacity | Listed Energy Reference |
|---|---|---|
| 4 mm | 20-22 loads/hour | ≤2 kWh/m2 |
| 5 mm | 16-18 loads/hour | ≤3 kWh/m2 |
| 6 mm | 12-14 loads/hour | ≤4 kWh/m2 |
| 8 mm | 8-10 loads/hour | ≤5 kWh/m2 |
| 10 mm | 6-8 loads/hour | ≤6 kWh/m2 |
| 12 mm | 4.5-6 loads/hour | ≤7 kWh/m2 |
| 15 mm | 4-5 loads/hour | ≤8 kWh/m2 |
| 19 mm | 3-3.5 loads/hour | ≤10 kWh/m2 |
Plan the Equipment Before and After Tempering
The furnace is not isolated. Glass usually needs cutting, edge processing, drilling or CNC machining and washing before it enters the tempering furnace. If these upstream steps are not matched correctly, the furnace may not reach the expected workflow efficiency.
Before choosing the furnace, review the wider glass processing machine guide, cutting solutions, edge processing equipment and glass washing systems.
RFQ Checklist for a Faster Tempering Furnace Quote
To help Enoble recommend the right glass tempering furnace configuration, send the information below with your inquiry:
- Final product type and target market
- Maximum glass size and common production size
- Thickness range and main daily thickness
- Glass type: clear, colored, screen-printed, coated or Low-E
- Daily output target or loads per hour requirement
- Factory layout, loading direction and available space
- Power capacity, voltage and compressed-air conditions
- Destination country and installation schedule
Request glass tempering furnace configuration support
FAQ
What size glass tempering furnace should I choose?
Choose by maximum glass size, common production size, thickness range and output target. The useful furnace size should match daily production, not only the largest possible glass sheet.
Can one furnace process both thin and thick glass?
It depends on the furnace configuration. For example, the SC-E-2436 supplied standard data covers 4-19 mm flat glass, but capacity changes by thickness.
Can a glass tempering furnace process Low-E glass?
Low-E glass can be supported by suitable forced-convection configuration, but buyers should confirm the coating type, glass structure and target product before quotation.
What information is needed before quotation?
Send glass size, thickness, glass type, output target, factory layout, power conditions, compressed air and destination country.