Glass Machinery Reconditioners

Make/Type: GMI / Chemical Tempering
Group-Subgroup: 9 Tempering - Chemical Tempering
Reference: S-TPG-275
Construction Year: 2021
Condition: 01 NEW with warranty
Info: Automatic oven for chemical tempering of glasses
maximum dimensions 2600 x 1500 mm

1 Model: CT925 (Special)

2 Components:
· Stainless steel tank with electrical heating system
. Moving pre-heating dome combined with lifting rack from the salt
. Loading glass rack with railway inside the pre-heating chamber
. Outside mechanism and electrical parts
· Bulkhead for covering the tank
. N. 1 Stainless steel rack to hold glasses
· Switch board + power board
. H 1mt perimetrical security netting of the entire oven with gate and electro-lock
3 Mains data
- Heated base of the oven to contain the tank with the salt and reach a temperature
of 400/500°C
- Outside temperature: max. 40/60°C
- Stainless steel tank Aisi 321, thickness 8mm (with radiographed welding)
- Inside dimensions of the tank: 2700x900x1800mm
- Tank capacity: about 7000/8000 kg of salt
- Electrical power of the bottom part of the oven: 90 kW
- Electrical power of the pre-heating dome: 48 kW
- Intake hole inside the post-cooling dome with motorized closure
- Motorized linear translation system of the dome from the base of the oven to the loading/unloading
- Motorized bulkhead to close the tank with the salt
- Motorized lifting system of the rack with glasses, by means of endless screws and possibility to change the
- Control board complete with all controls and safety devices necessary for a complete managing of the
equipment in automatic
- Stainless steel rack Aisi 316, suitable to hold glasses to temper (only external frame)
4 Technical specifications of the components
4.1 Heated base of the oven with the tank
· Heating elements are placed in all sides (on two levels) and on the bottom of tank
. Electrical power: 3 x 400V, 50/60Hz 138KW
· All heating elements can be easily reached and connected from the outside
· Temperature uniformity of the bath: +/- 3/5°C
· Temperature sensors placed in two different levels. Each level has four
sensors included in two thermocouples
· Temperature control of heating chamber in two areas with two thermocouples for a uniform
· Temperature alarm MIN/MAX set on 30/40°C
· Tank welding controlled at X radius to assure the maximum safety of salt bath
· Construction of the salt bath tank made in stainless steel AISI 321, thickness 8mm
· Tank with salt always covered during moving of pre-heating chamber
· Maximum temperature of the bath: 500 °C
4.2 Pre-heating chamber
· Pre-heating dome without door
· External rack loading system with controlled variable speed
· Automatic system of pre-heating chamber translation from loading area to salt bath
· Pre-heating dome with inside heating
· Temperature control inside the chamber
· Mechanical and electrical external system for rack lifting
· Two windows to inspect inside the chamber on each side
4.3 Rack to hold glasses
- Maximum dimension of glass: length: 260 [cm]
height: 150 [cm]
depth: 90 [cm]
- Suitable for a maximum total capacity of 1500Kg
- Wire netting on the bottom of the rack and 30cm on the sides to collect pieces of glass in case of
· Construction in stainless steel Aisi 316
· Removable bars on the front for a better loading and unloading of the glasses
· Rack realized only with steel section and no tubular
4. 4 Control device
- Possibility of manual and automatic working
- English inscriptions
4. 5 Specifications of control device
- Four thermoregulators to control heating chamber and salt temperature
- Temperature recorder 3 retraces
- Electronic panel for the equipment running
- Functions controlled by PLC
- Complete with emergency button
- Complete with selector with key for manual opening and closure of the bulkhead to close the tank for
4.7 Documentation
4.7.1 General manual including following documents:
. working general description
· technical data
. instructions for installation
· detailed description for the automatic use
· detailed description for the manual use
· detailed description in case of alarm and emergency
· diagram of the electric circuit
· maintenance manual
· list of spare parts suggested to keep in stock
4.7.2 Certificate of conformity and quality
· CE certificate of conformity
· Certificate of material for rack to hold glasses
· Certificate of material for tank
· Test certificate to X radius of tank welding
. Certificate of salt analysis (if supplied)
5 Salt composition necessary for processing
- 100% Potassium Nitrate
- Potassium nitrate pure for analysis RPE
- Quantity necessary to fill up the tank, about 8000 Kg
6 Installation
- Installation and starting up of the equipment
- Instruction for use and maintenance
- Time necessary: six days 2/3 technicians
Options: 7 Terms of sale - Price of the equipment: - Charge of salt not included kg 8.000 - Installation: cost extra (board and lodging expenses to be paid by the buyer) - Delivery: to be agreed - Terms: EXW - Transport: according to your instructions - Payment: 40% with the order for starting works 40% before delivery, after our advice that goods are ready 20% after installation of the equipment

1. Cutting

2. Edging

3. Bevelling

4. Drilling

5. Washing

6. Coating

7. Insulating glass

8. Laminating glass

9. Tempering

10. Handling

11. Others

12. Spare parts

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