SMC Molding Hydraulic Press Machine is the machine that can produce SMC composite manhole cover, Its working principle is to use the pressure provided by the hydraulic system to press the composite material into the shape of the manhole cover. A hydraulic press can replace molds of different sizes and shapes to produce FRP of different specifications. Composite manhole covers.
Commonly used hydraulic presses for producing manhole covers have pressures of 315 tons, 500 tons, and 600 tons. Customers can purchase their own suitable hydraulic press according to their own production specifications and output needs.
Product Name: Hydraulic Press Machine
Usage: Make SMC molding products
Capacity : 315T/500T/600T
Manufacturing Process : Hot pressed SMC compression moulding
Original: China
Loading Port: Tianjin,Qingdao,Shanghai.
Specification
FRP Press Molding Machine is an industrial equipment specially designed for producing FRP (Fiber Reinforced Plastics) products. This type of hydraulic press uses powerful hydraulic power to mold pre-impregnated glass fiber and resin to produce composite products with high strength and lightweight characteristics. The following is a detailed introduction to FRP hydraulic press.
SMC (Sheet Moulding Compound) components
BMC (Bulk Moulding Compound) components
Basic Structure and Working Principle
● Power system: The power of the hydraulic press is provided by the hydraulic pump, which is transmitted to the hydraulic cylinder through hydraulic oil to push the piston up and down, thereby generating huge pressure.
● Electrical system: The button centralized control can realize adjustment and semi-automatic operation mode, including manual or automatic injection.
● Structural design: The fuselage adopts finite element structural analysis and optimization design to ensure compact structure, good rigidity and high precision.
● Oil circuit system: The cartridge valve integrated system is adopted to reduce impact, improve action reliability, extend service life and reduce leakage.
Features and Advantages
● Multi-purpose: It is suitable for the pressing and molding of various FRP products, and can also be used for the pressing process of plastic materials, such as bending, flanging, as well as correction and pressing process.
● Process adaptability: It can realize two processes of fixed pressure and fixed stroke, with pressure holding and delay function, and the delay time is adjustable.
● Efficient production: The molding process has high efficiency and can realize one-time molding, which is particularly suitable for large-scale production.
Application Range
● Diversified products: It can be used to produce FRP tanks, storage tanks, mixing tanks, pipelines, electric meter boxes, manhole covers, septic tanks, building formwork templates, single hydraulic props, etc.
● Industry fields: It is widely used in automobile, aerospace, shipbuilding, construction, chemical, environmental protection and other industries to manufacture various high-performance composite parts.
Technical specifications
● Pressure range: The pressure specifications of hydraulic presses are diverse, ranging from hundreds of tons to thousands of tons, such as 315 tons, 400 tons, 500 tons, 800 tons, 1500 tons, 2000 tons, 2500 tons, etc.
The molding machine is easy to operate and the working parameters are adjustable; the system can be equipped with an optional in-mold core pulling control system and a preset in-mold ejection control system, which can realize rapid descent, segmentation and pressing, segmented deflation, working, pressure maintaining, It has a series of actions such as slow mold opening, fast return, slow demoulding, fast ejection, ejection stop, and rapid retraction, and the temperature can be controlled at multiple points.
| Type | 315T | 500T | 630T |
| Nominal Force(KN) | 3150 | 5000 | 6300 |
| System Pressure(Mpa) | 25 | 25 | 25 |
| Max opening distance(mm) | 1000 | 1500 | 1800 |
| Slider effective stroke(mm) | 600 | 900 | 1000 |
| Effective worktable size(mm) -L.RXF.B | 800x800 | 1400x1400 | 1500x1500 |
| Nominal force of upper ejection clinder(Kn) | 630 | 1000 | 1000 |
| strok of upper ejection cylinder(mm) | 300 | 300 | 350 |
Photo Reference
SMC Machine + Press Molding Machine
The combination of an SMC (Sheet Molding Compound) Machine and a Press Molding Machine is a powerful manufacturing duo used to produce high-quality composite parts efficiently.
The process they work together:
- Preparation (SMC Machine):
- The SMC machine prepares the raw material by mixing, rolling, and cutting it into charge blanks (pre-cut pieces).
- Molding (Press Molding Machine):
- The charge blanks are placed into the mold of the press molding machine.
- Heat and pressure are applied to cure the resin and form the final part.
BMC Machine + Press Molding Machine
The combination of a BMC (Bulk Molding Compound) Machine and a Press Molding Machine is widely used in the manufacturing of high-performance composite parts. This setup is particularly suited for producing small to medium-sized components with intricate designs, excellent mechanical properties, and superior surface finishes.
The process they work together:
- Preparation (BMC Machine):
- The BMC machine prepares the raw material by mixing, forming, and cutting it into charge sizes suitable for molding.
- Molding (Press Molding Machine):
- The prepared BMC charges are placed into the mold of the press molding machine.
- Heat and pressure are applied to cure the resin and form the final part.
Reference Products It Can Produce
Feature
1. The FRP forming hydraulic press has a three-beam, four-column or frame structure. The overall body adopts finite element structural analysis and optimization design. The machine tool structure is simple, economical and practical;
2. The hydraulic control adopts a cartridge valve integrated system, which has reliable action, long service life, small hydraulic impact, and reduces connecting pipelines and leakage points;
3. The independent electrical control system makes the equipment reliable in operation, objective in action, and easy to maintain;
4. Through the operation panel, two molding processes of fixed stroke and fixed pressure can be realized, and it has functions such as pressure maintaining and delay;
5. The working pressure of the slider of the FRP forming hydraulic press, the stroke range of no-load rapid descent and slow working advance can be adjusted according to process needs.
Characteristics:
FiberGlass composite manhole cover molding SMC hydraulic press machine, Hydraulic control adopts to insert set valve integrated system, decrease let out Point.Movement reliability, durable and long life span, It is constant pressure to realize with calm in the first place and calm procedure two develop technology, have to insure press the function of delay time, The route of working pressure may be regulated in assigned scope, adopt buttons for centralized control, Can realization manual, Semi-automatic, automatic 3 operate form.
Application field:
This series of hydraulic presses is suitable for the pressing process of plastic materials, such as stamping, bending, flanging and thin stretching, etc. It can also be used for the correction, press-fit, plastic products and powder products.
FAQ
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What is SMC?
- SMC is a thick sheet-like material composed of:
- Chopped glass fibers for reinforcement.
- Unsaturated polyester or vinyl ester resin as the binding matrix.
- Fillers, thickeners, and other additives for improved properties.
- SMC is pre-formed into sheets and stored until ready for molding.
- SMC is a thick sheet-like material composed of:
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How is the SMC Machine Works?
- The SMC material is placed into a mold cavity.
- The machine applies heat (typically 130–170°C) and pressure (2–10 MPa) to cure the resin and form the desired shape.
- After curing, the part is ejected from the mold and trimmed if necessary.
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Key Components of the Machine.
- Mold: Defines the final shape of the product.
- Press System: Provides the required pressure for molding.
- Heating System: Ensures the resin cures properly.
- Automation System: Handles material placement, pressing, and ejection.
- Control System: Monitors and regulates temperature, pressure, and cycle time.
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SMC Comparison to BMC (Bulk Molding Compound)
- SMC: Sheet form, longer fibers (better mechanical properties), used for large, structural parts.
- BMC: Dough-like bulk form, shorter fibers, suited for smaller, intricate components.
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What is BMC?
- BMC is a ready-to-mold compound made of:
- Short fiberglass strands for reinforcement.
- Unsaturated polyester or vinyl ester resin as the binding matrix.
- Fillers (e.g., calcium carbonate) for improved properties.
- Additives like colorants, stabilizers, and lubricants.
- BMC is pre-mixed and supplied in bulk form, making it ideal for injection or compression molding.
- BMC is a ready-to-mold compound made of:
-
How the Machine Works:
- The BMC material is fed into the mold cavity.
- The machine applies heat (typically 130–170°C) and pressure (5–20 MPa) to cure the resin and form the desired shape.
- Once cured, the part is ejected from the mold and may undergo post-processing (e.g., trimming, finishing).
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BMC Comparison to SMC (Sheet Molding Compound)
- BMC: Shorter fibers, better flow for intricate parts, lower strength.
- SMC: Longer fibers, higher strength, suited for larger structural components.
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BMC Molding Process
- Material Loading:
- Pre-weighed BMC charges are placed into a heated mold.
- Compression/Injection Molding:
- Compression: A hydraulic press (5–20 MPa pressure) forces BMC to fill the mold cavity.
- Injection: BMC is injected into the mold (common for high-volume, complex parts).
- Curing:
- Heat (130–160°C) triggers cross-linking of the thermosetting resin (cycle time: 30–120 seconds).
- Demolding:
- Finished parts are ejected, often requiring minimal post-processing.
- Material Loading:
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