1000×1000mm Workbench Size Frame Flat Plate Vulcanizing Press/Automotive Engine Seal Production Line
Simply put, any relatively flat or regular rubber product that requires forming and vulcanization under a certain temperature and pressure can be produced using a plate vulcanizer.
Below, I will detail the rubber product categories for which plate vulcanizers are used and explain the reasons.
I. Main Application Categories
1. Sealing Products
This is the most classic and largest application area for plate vulcanizers. This is because seals typically require high precision and stable physical properties.
O-rings: O-rings of various specifications and materials are typically mass-produced using plate vulcanizers with multi-cavity molds.
Gaskets: Examples include engine cylinder gaskets, pipe flange gaskets, and seals for various mechanical equipment.
Oil Seals: Although some oil seals are now injection molded, many are still produced using plate vulcanizers.
Door and Window Weatherstrips: Some seals have simple cross-sectional shapes or are short in length.
2. Shock Absorbers: These products need to withstand pressure and exhibit elasticity, and plate vulcanizers can provide stable vulcanization pressure.
Rubber Shock Absorbers: Used as shock absorbers and pads in machinery, bridges, and buildings.
Air Springs and Airbags: Some production processes utilize a flat-plate vulcanizer to vulcanize the rubber sheet before forming it.
Cushion Pads: Various industrial cushions, fenders (small), and more.
3. Rubber Sheets/Sheets
This is the most straightforward application, as the product itself is flat.
Common Rubber Sheets: Examples include oil-resistant, acid- and alkali-resistant, and insulating rubber sheets.
Specialty Rubber Sheets: Examples include patterned sheets (anti-slip flooring), food-grade rubber sheets, and rubber magnetic sheets.
Composite Sheets: Examples include rubber-metal laminates and rubber-canvas composite sheets.
4. Rubber Roller Covering
While large rubber rollers are typically vulcanized using drum or winding vulcanizers, large flat-plate vulcanizers are still widely used for many small and medium-sized rubber rollers and for repair and re-covering. The metal roller core is placed in a mold, the rubber compound is injected, and the vulcanization is performed under pressure and heat.
5. Conveyor Belts
Lightweight Conveyor Belts: Flatbed vulcanizers are ideal for producing lightweight conveyor belt segments and can also vulcanize and splice joints.
Conveyor Belt Joints: For large conveyor belts, portable flatbed vulcanizers are often used to vulcanize joints during on-site repairs, a crucial application.
6. Molded Products
Any rubber part formed by a mold, as long as the mold opens and closes, can be molded using a flatbed vulcanizer.
Automotive Parts: Examples include bushings, dust covers, and small rubber sleeves.
Electronic Accessories: Examples include keyboard keys, remote control buttons (early models), and conductive rubber connectors.
Daily Use Items: Examples include hot water bottles, rubber soles, bottle cap pads, and rubber.
7. Other Specialty Products
Rubber Dams: Large flatbed vulcanizers are used to vulcanize the rubber sheets for dams, which are then joined together to form a single unit.
Rubber Airbags: Inflatable airbags are used in civil engineering and shipwreck salvage.
Insulation products: Such as electrical insulating gloves and insulating pads.
II. Why choose a platen vulcanizer for these products?
The core features of a platen vulcanizer determine its application range:
Providing stable pressure: A hydraulic system applies pressure to the platen, ensuring that the rubber fills the mold cavity and expel air bubbles, resulting in a dense and dimensionally stable product.
Providing uniform temperature: Uniformly distributed heating channels (steam or electric heating rods) within the hot platen provide the precise and uniform temperature required for vulcanization.
Wide mold adaptability: Various mold structures (such as multi-cavity molds) can be designed and installed, resulting in high production efficiency.
Simple operation and convenient control: Modern platen vulcanizers are all PLC-controlled, allowing precise setting and recording of vulcanization parameters such as temperature, pressure, and time to ensure consistent product quality.
III. Limitations of Flatbed Vulcanizers
Although widely used, they are not always suitable for certain applications:
Long, continuous products, such as indefinitely long sealing strips and hoses, are better suited to drum vulcanizers or continuous vulcanization lines (such as microwave or hot air vulcanization).
Extremely complex products, such as those with complex metal inserts or deep, thin-walled cavities, can be better served by injection vulcanizers, ensuring complete mold filling and reducing scrap.
Extremely large products, such as large tires, require specialized tire vulcanizers (with tire expansion and tread plate expansion functions).
Summary
The flatbed vulcanizer is a versatile, essential piece of equipment in the rubber industry, particularly suitable for the production of relatively regular-shaped products such as seals, gaskets, shock absorbers, rubber sheets, and molded parts. Its advantage lies in its ability to provide stable and reliable pressure and temperature, which is crucial to the success of the rubber vulcanization process.
III.Frame Type Curing Press
| Model | XLB-1100*5700 | XLB-1400*5700 | XLB-1400*10000 | XLB-1600*8500 | XLB-1600*10000 | XLB-2000*10000 |
| Plate size | 1100*5700 | 1400*5700 | 1400*10000 | 1600*8500 | 1600*10000 | 2000*10000 |
| Total pressure | 17.55MN | 25.00MN | 49.00MN | 47.60MN | 56.00MN | 70.00MN |
| Plate pressure | 2.8 Mpa | 3.13 Mpa | 3.5 Mpa | 3.5 Mpa | 3.5 Mpa | 3.5 Mpa |
| Diameter of piston | 500 mm | 360 mm | 450 mm | 500 mm | 450 mm | 600 mm |
| Piston number | 5 | 10 | 20 | 14 | 18 | 16 |
| Piston stroke | 520 mm | 400 mm | 300 mm | 300 mm | 400 mm | 300 mm |
| Working layer | 2 | 2 | 1 | 1 | 2 | 1 |
| Clamping force | 0.50 | 0.72 | 0.90 | 0.6 | 1.20 | 1.20 |
| Drawing force | 0.40 | 0.60 | 0.80 | 0.5 | 1.10 | 1.00 |
| Steam pressure | 0.63 Mpa | 0.63 Mpa | 0.63 Mpa | 0.63 Mpa | 0.63 Mpa | 0.63 Mpa |
| Cooling pressure | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa | 0.3 Mpa |
| Operation system | PLC | PLC | PLC | PLC | PLC | PLC |
| Application | nylon rope belt conveyor, PVG/fabric such as core parallel |
1. Production process:
Spindle rack ——Tension station——Pendulum moving device——Make-up carriage——The cloth coiling/back to pull open with the guide born——Guide roller group——Front entrap stretching device——Front demould device——Main vulcanizer——Rear demould device——Centre entrap device——Patching vulcanizer——Multifunctional drawstring device——Hydraulic cutting machine——Deflection centering counting device——Double roller side wall and rewinding packaging machine.
2. Production process instructions:
1) This production line can meet the standard of GB/T97700-2001, GB/T7984-2001 to produce all kinds of conveyor belt.
2) Plate vulcanizing’s design and manufacture accord the standard of HG/3034-1999.
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