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Laboratory Press
Laboratory press, with 250x250 mm platens and 25 T closure force, for the compression moulding of plates and specimens.
Standards the instrument complies with:
Cellular ProductsFlexible cellular polymeric materials – Sponge and expanded cellular rubber products – Specification – Part 2: Mouldings and extrusionsISO 6916-2PlasticsPlastics — Compression moulding of test specimens of thermoplastic materialsISO 293Rubber & ElastomersRubber test mixes – Preparation, mixing and vulcanization – Equipment and proceduresISO 2393Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized SheetsASTM D3182Rubber, vulcanized or thermoplastic -- Determination of indentation hardness -- Part 1: Durometer method (Shore hardness)ISO 6916-1Sheets, Flooring & GeotextilesPiastre di gomma sottorotaia, scanalate, per armamento di binari ferroviari e tranviari. UNI 5572
Standards the instrument complies with:
Cellular Products
Flexible cellular polymeric materials – Sponge and expanded cellular rubber products – Specification – Part 2: Mouldings and extrusionsISO 6916-2Plastics
Plastics — Compression moulding of test specimens of thermoplastic materialsISO 293Rubber & Elastomers
Rubber test mixes – Preparation, mixing and vulcanization – Equipment and proceduresISO 2393Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized SheetsASTM D3182Rubber, vulcanized or thermoplastic -- Determination of indentation hardness -- Part 1: Durometer method (Shore hardness)ISO 6916-1Sheets, Flooring & Geotextiles
Piastre di gomma sottorotaia, scanalate, per armamento di binari ferroviari e tranviari. UNI 5572
Gibitre Laboratory Press
is currently installed in
37 countries
Request the List of top References
Gibitre Laboratory Press
is currently installed in
37 countries
is currently installed in
37 countries
Request the List of top References
Overview
The laboratory press is an important tool for the preparing of samples with reproducible characteristics.
Uniform temperature distribution over the platen Surface and mechanical solidity to ensure constant thickness of the sample and consistent closure force are basic elements to ensure this result.
The laboratory press is an important tool for the preparing of samples with reproducible characteristics.
Uniform temperature distribution over the platen Surface and mechanical solidity to ensure constant thickness of the sample and consistent closure force are basic elements to ensure this result.
Key Features
• Mechanical structure with 4 columns (with 60 mm diameter) and sliding platen driven by self-lubricating bushings
• Hydraulic system with 25 tons closure force
• 250x250 mm chrome plated steel platens with 40 mm thickness
• Specifically designed flat heating elements to ensure uniform temperature distribution over the platen surface
• Closed moulding area for easy fume aspiration
• Protection doors with safety lock
• CE Labelling
• Mechanical structure with 4 columns (with 60 mm diameter) and sliding platen driven by self-lubricating bushings
• Hydraulic system with 25 tons closure force
• 250x250 mm chrome plated steel platens with 40 mm thickness
• Specifically designed flat heating elements to ensure uniform temperature distribution over the platen surface
• Closed moulding area for easy fume aspiration
• Protection doors with safety lock
• CE Labelling
Automatic Press Control
The PLC controller for the press is provided with a user-friendly Touch Screen Display and permits the free definition of the moulding cycle by setting:
• The displacements of the moving platen of the press,
• The thermal cycle (different temperatures of the platens and thermal gradients can be set within a moulding cycle)
• The pressure cycle (with the force control option installed).
Three Moulding cycles can be stored. Each cycle includes 24 moulding steps (including displacements, temperatures setups and pressure setups)
The PLC controller for the press is provided with a user-friendly Touch Screen Display and permits the free definition of the moulding cycle by setting:
• The displacements of the moving platen of the press,
• The thermal cycle (different temperatures of the platens and thermal gradients can be set within a moulding cycle)
• The pressure cycle (with the force control option installed).
Three Moulding cycles can be stored. Each cycle includes 24 moulding steps (including displacements, temperatures setups and pressure setups)
Cooling system
The cooling of the press platens during the molding cycle is necessary for the molding of thermoplastic materials because the material must be cooled to the solidification temperature before opening the mold.
The Gibitre press can be equipped with cooling device that allows the cooling of the platens at controlled speed.
The cooling of the press platens during the molding cycle is necessary for the molding of thermoplastic materials because the material must be cooled to the solidification temperature before opening the mold.
The Gibitre press can be equipped with cooling device that allows the cooling of the platens at controlled speed.
Closure Force Control
The Digital pressure regulation system is designed for applications that require an accurate control of closure force.
A specific 2-stages hydraulic circuit, which includes proportional regulation valves and continuous fine regulation pumping system, has been designed to ensure accurate pressure control.
The results is a smooth and consistent force control which permit to set the closure force between 10 kN and 250 kN with 10 N set force regulation steps with regulation oscillations lower than 1000 N.
The control of the closing force is performed using the Automatic Press Control that must be installed in combination with the Closure Force Control option.
The Automatic Press Control device permits to set multiple pressure regulation steps within the moulding cycle.
The Digital pressure regulation system is designed for applications that require an accurate control of closure force.
A specific 2-stages hydraulic circuit, which includes proportional regulation valves and continuous fine regulation pumping system, has been designed to ensure accurate pressure control.
The results is a smooth and consistent force control which permit to set the closure force between 10 kN and 250 kN with 10 N set force regulation steps with regulation oscillations lower than 1000 N.
The control of the closing force is performed using the Automatic Press Control that must be installed in combination with the Closure Force Control option.
The Automatic Press Control device permits to set multiple pressure regulation steps within the moulding cycle.
Moulds
Moulds for producing plates and different types of samples according to international standards are available. Fixing rails with sliding system permit easily handling of the moulds. Mould produced upon customer design and company logo engraving are available on request.
Read more about Gibitre Moulds
Moulds for producing plates and different types of samples according to international standards are available. Fixing rails with sliding system permit easily handling of the moulds. Mould produced upon customer design and company logo engraving are available on request.
Read more about Gibitre Moulds
Gibitre Press Logger
The Automatic Press Control device is fitted with a USB port which permits the connection to a Pc. The Gibitre Press Logger program permits the continuous recording of the press conditions (temperature, pressure, moving platen position, cycle step). Both graphical and numerical recording is provided with automatic generation of daily storage files. The program is compatible with Windows 7 and 8 and 10 (64 bits).
The Automatic Press Control device is fitted with a USB port which permits the connection to a Pc. The Gibitre Press Logger program permits the continuous recording of the press conditions (temperature, pressure, moving platen position, cycle step). Both graphical and numerical recording is provided with automatic generation of daily storage files. The program is compatible with Windows 7 and 8 and 10 (64 bits).
Standard Calibration service for Laboratory Press
Maintenance and Calibration service for your Laboratory Press.
The service includes:
• Ordinaly maintenance of the instrument
• Calibration of the temperature of the platens. The temperature is measured, with the plates closed, in 9 different points of the platens and at 3 different temperatures (140°C, 170°C, 200°C).
• Calibration of the closure Force (50, 100, 150, 250 kN)
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.
Sample Calibration Report
Maintenance and Calibration service for your Laboratory Press.
The service includes:
• Ordinaly maintenance of the instrument
• Calibration of the temperature of the platens. The temperature is measured, with the plates closed, in 9 different points of the platens and at 3 different temperatures (140°C, 170°C, 200°C).
• Calibration of the closure Force (50, 100, 150, 250 kN)
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.
Sample Calibration Report
Safety devices
• Safety protection doors fitted with safety switch.
• Safety Push-button
• CE labelling
• Safety protection doors fitted with safety switch.
• Safety Push-button
• CE labelling
Development and production
The instrument is totally developed and produced in the plant of Gibitre Instruments in Italy.
All the mechanical parts are produced in the company workshop using modern CNC machines.
Components and sensors from well-known brands are selected in order to ensure the maximum reliability in the measures
Internal trained personnel takes care of all the production stages: assembly, start-up, calibration, packing, shipment and installation.
The instrument is totally developed and produced in the plant of Gibitre Instruments in Italy.
All the mechanical parts are produced in the company workshop using modern CNC machines.
Components and sensors from well-known brands are selected in order to ensure the maximum reliability in the measures
Internal trained personnel takes care of all the production stages: assembly, start-up, calibration, packing, shipment and installation.
Technical specifications
| Reference Standards | Standards the instrument complies with: ISO 6916-2; ISO 293; ISO 2393; ASTM D3182; ISO 6916-1; UNI 5572; | ||||
| Instrument Characteristics | |||||
| Max useable platen surface 250 mm x 250 mm | Max closure force 25 Tons | Max platen stroke 200 mm | Temperatures
Up to 250°C (300°C optional). 0.1°C Resolution. Temperature uniformity in the area 200x200mm: Maximimum deviation from the centre of the platen <0,5°C. Mean difference of platen temperature from set point <0,5°C. |
Cooling System (Option) Cooling of the platens with controlled cooling gradient. The cooling is controlled using the Automatic Press control PLC device | Closure force Control(option) Continuous control of the closing force with regulation between 10 and 250 kN with 10N regulation steps. Max. regulation error: 1 kN. |
| Press control device | |||||
| Touch Screen PLC controller PLC with touch-screen display. Permits to: • set displacements of the moving plate • set the temperatures • activate the cooling and cooling rate (with cooling option) • set closure force (with force regulation option) | |||||
| Safety Devices | |||||
| Safety Devices
• Safety Pushbutton. • Doors with safety switch |
Labelling CE Labelling | ||||
| Calibration | |||||
| Calibration Report Calibration report with traceability to primary standards in conformity with the Calibration requirements specified in ISO 2393 standard | Calibrated parameters
The certificate includes the calibration of: - temperature of the platens. The measure is performed in 9 different points of the platens and at 3 different temperatures (140°C, 170°C, 200°C). - Closure force (with Pressure control option) |
||||
| Construction Characteristics | |||||
| Platen temperature control
- Electrical heating. - Independent temperature control of the plates by means of PID controllers |
Power supply 380 VAC ±10%,50 Hz ±3, 10 A,three-phase -Other on request | Electrical power 6 KW | Instrument dimensions (with mounted side drawer) (Width x Depth x Height) 1200 x 950 x 1800 mm | Instrument dimensions (without side drawer) (Width x Depth x Height) 650 x 950 x 1800 mm | Weight 520 Kg |
| Cooling System | |||||
| Cooling System The cooling is perform with the connection too a water source (or a chiller). The control of the cooling and of the cooling rate are controlled by the PLC controller. | Connection to cooling liquid
The water supplied to the Press must be demineralized. The fittings for the inlet water is 1/4" |
Insulated tank for cooling water (optional) The hot water, which exits from the cooling circuit, must be cooled before being discharged. The insulated tank permits to store and cool the water before the discharge | Water consumption The cooling of the platens of the press, starting from 250°C down to 70°C requires approxiametely 30 liters of water. The quantity changes depending from the temperature of the water used. | ||
| Software | |||||
| Gibitre Press Logger
Software compatible with Windows 7, 8 and 10 for continuous recording of the press conditions (temperature, pressure, moving platen position, cycle step). The software is connected to the press with USB cable |
Related pages
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Faq
?
How to handle the water outgoing from the cooling system?
The water leaving the press must be cooled before being discharged. An optional reservoir for outgoing water treatment is available.
How to handle the water outgoing from the cooling system?
The water leaving the press must be cooled before being discharged. An optional reservoir for outgoing water treatment is available.
?
How much water is needed for a complete cooling cycle?
The cooling of the platens of the press, starting from 250°C down to 70°C requires approxiametely 30 liters of water. The quantity changes depending from the temperature of the water used.
How much water is needed for a complete cooling cycle?
The cooling of the platens of the press, starting from 250°C down to 70°C requires approxiametely 30 liters of water. The quantity changes depending from the temperature of the water used.
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