Home » Application » Compression Molding Press
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In the compression molding process, temperature, pressure, and time duration under pressure are important process parameters. From maintaining consistent heat throughout a specified dwell period to precision pressure ramping, and managing burp cycles, Shuntec custom-made heated platen compression molding presses help you perfect your forming operation.
Compression molding is a method of molding during which the preheated molding material is placed in a heated mold cavity. Then the mold is closed with a top force, which generates pressure forcing the material to contact all mold cavity areas. The heat and pressure will be maintained for a certain period of time until the molding material is cured and the desired product is obtained. Compression molding is one of the most cost-effective thermoforming methods for molding complex, high-strength products such as fiber-reinforced plastics, metal alloys, composites, and rubber.
With a working area up to 78 inches and tonnage up to 800 tons, Shuntec hydraulic compression presses machines are guided by quality graphite-impregnated self-lubricated bronze bushings and four solid, chrome-plated posts. The long bearing length provides perfect pressing stability and effective resistance to off-center loading. To ensure the perfect compression molding operation, The heated platens can be divided into multi-temperature zones to achieve uniform heat distribution and convenient temperature monitoring. The main pressing cylinder and multi auxiliary cylinders are designed for stable pressure cramping and burp cycle managing.
For fast set up into production, all compression molding presses in Shuntec can be offered with a 7-inch or 10-inch comprehensive HMI for parameter setting, data acquisition, and storage. A preheating device can be integrated or separated with the compression molding press.
| Description | Shuntec-A09 100T | Shuntec-A09 150T | Shuntec-A09 200T | Shuntec-A09 300T | Shuntec-A09 400T | Shuntec-A09 630T |
| Structure | 4-post press | 4-post press | 4-post press | 4-post press | 4-post press | 4-post press |
| Heated Platen | Maximum 500 ℃ | Maximum 500 ℃ | Maximum 500 ℃ | Maximum 500 ℃ | Maximum 500 ℃ | Maximum 500 ℃ |
| Main Cylinder Force | 1000 KN | 1500 KN | 2000 KN | 3000 KN | 4000 KN | 6300 KN |
| Main Cylinder Stroke | 300 mm | 300 mm | 400 mm | 400 mm | 500 mm | 500 mm |
| Max. Daylight | 420 mm | 420 mm | 500 mm | 500 mm | 700 mm | 700 mm |
| Shut Height | 80 mm | 80 mm | 100 mm | 100 mm | 200 mm | 200 mm |
| Bed Table | 400*400 mm | 450*420 mm | 560*560 mm | 560*560 mm | 660*650 mm | 750*800 mm |
| Closing Speed | 120~130 mm/s | 120~130 mm/s | 120~130 mm/s | 120~130 mm/s | 120~130 mm/s | 120~130 mm/s |
| Slow Pressing Speed | 4~5 mm/s | 4~5 mm/s | 4~5 mm/s | 4~5 mm/s | 4~5 mm/s | 4~5 mm/s |
| Return Speed | 125~130mm/s | 125~130mm/s | 125~130mm/s | 125~130mm/s | 125~130mm/s | 125~130mm/s |
| Motor | 4 Pole, 7.5KW | 4 Pole, 7.5KW | 4 Pole, 11.5KW | 4 Pole, 12.5KW | 4 Pole, 17KW | 4 Pole, 33KW |
| Power Supply | 3Phase, 220/380/415/480VAC, 50/60HZ | 3Phase, 220/380/415/480VAC, 50/60HZ | 3Phase, 220/380/415/480VAC, 50/60HZ | 3Phase, 220/380/415/480VAC, 50/60HZ | 3Phase, 220/380/415/480VAC, 50/60HZ | 3Phase, 220/380/415/480VAC, 50/60HZ |
| System Pressure | 20 Mpa | 20 Mpa | 20 Mpa | 20 Mpa | 25 Mpa | 25 Mpa |
| Machine Approx. Weight | 3 Ton | 4.5 Ton | 5 Ton | 6 Ton | 7.5 Ton | 13 Ton |
• Electric, oil, or steam heating systems
• Water-cooled platens
• Multi-zone temperature control for extreme uniformity
• Multiple cavities for increased productivity
• Bed shuttles for simplified tool loading and unloading
• Automatic insulated door systems for maximum heat efficiency
• Hydraulic center ejection
• Air blast valve with timer and air nozzles
• Portable operator console
• Pneumatic safety rachet
• Color HMI
• Linear position sensor
• Load cell
• Automatic tie bar lubrication
• Top-mounted hydraulics
