BAINA Rubber& Plastic Equipment

https://www.zjbaina.com/

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Baina PLC-Controlled Silicone Extrusion Curing Line

Our Silicone Extrusion Curing Line delivers seamless production across 12+ rubber product categories—from automotive sealing strips to industrial hoses and tire manufacturing.

✅ Single & composite hoses

✅ Braided/knitted rubber hoses

✅ Door & window seals (car, ship, plane, railway, home)

✅ Metal-insert profiles

✅ Appliance seals (refrigerator, oven)

✅ Foam hoses & strips

✅ Construction profiles

✅ Rubber roller coating

✅ Auto & motorcycle tires

✅ Escalator handrails

✅ Rubber sheets

Smart control. Consistent output. Built for scale.

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Cold Feed Rubber Extrusion Machine for Rubber Sealing Profile

Boost your rubber sealing profile production with our high-performance Cold Feed Rubber Extruder! Featuring a robust 120mm single screw, powered by a 110kW Siemens drive motor for unmatched efficiency and reliability.

Equipped with 7 temperature control units (1.5kW each) and a 1.5kW vacuum pump, this machine ensures optimal extrusion quality and consistent output — every single run.

Built for manufacturers who demand precision, durability, and productivity.

DM us for specs, pricing, and customization options!

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Shaping and Sizing in the Extrusion Phase

This phase centers on the core extruder machine, where the prepared rubber is plastified, compressed, and forced through a shaping die. Within the extruder barrel, the rotating screw generates shear and pressure, warming the compound to a viscous, plastic state. Temperature control along the barrel zones is critical to achieve the correct viscosity for shaping without initiating premature vulcanization. The compound is then conveyed to the die head, a custom-machined metal block with an opening that defines the two-dimensional cross-section of the product, such as a door seal or a hose lining. Upon exiting the die, the hot, soft rubber profile lacks its final dimensions and surface finish. It often passes immediately through a sizing and cooling unit. This may involve a vacuum sizing tank or calibrated cooling plates, where the profile is gently drawn through a calibrated sizing die while being cooled by water spray or immersion. This step stabilizes the shape and ensures precise dimensional tolerances before the profile enters the curing stage.

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What are the benefits of using an EPDM extruder?

Using an EPDM extruder offers several benefits to manufacturers. Some of the key advantages include:

Customizable Shapes: One of the primary benefits of an EPDM extruder is its ability to produce rubber in custom shapes and sizes. The die can be altered to create profiles of various cross-sectional shapes, such as seals, gaskets, or even large sheets.

High Efficiency: The extrusion process is continuous, meaning it can produce long lengths of EPDM material without interruption. This continuous production method enhances efficiency and reduces labor costs compared to other methods such as molding.

Precise Control: EPDM extruders allow manufacturers to control key parameters such as temperature, pressure, and screw speed. This level of control ensures consistent product quality and minimizes defects.

Scalability: EPDM extruders can handle small-scale productions for prototypes as well as large-scale production runs, making them suitable for both small and large manufacturers.

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Basic Structure and Working Principle of the EPDM Extruder

The basic working principle of an EPDM extruder is similar to that of other rubber extruders, but its structure and configuration are adapted specifically for the processing behavior of EPDM. The core components include the feeding system, barrel, screw, heating and cooling units, drive system, and extrusion die.

The feeding system introduces the EPDM compound into the barrel in a controlled and continuous manner. The rotating screw inside the barrel then conveys the rubber forward. During this movement, the screw applies mechanical shear and compressive force to the material. These forces soften the rubber through internal friction and external heating from the barrel. As the EPDM compound advances, it gradually changes from a solid to a plasticized state suitable for shaping.

At the end of the barrel, the softened rubber is pushed through a die with a specific cross-sectional design. The die gives the extruded EPDM its final shape, such as a strip, tube, seal profile, or gasket form. The controlled pressure built up by the screw ensures that the rubber fills the die uniformly, producing a stable and continuous profile.

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APPLICATIONS OF EPDM EXTRUDERS

The versatility of EPDM rubber combined with extrusion technology allows these machines to serve multiple industries. Some notable applications include:

1. Automotive Industry

EPDM extruders are widely applied in automotive manufacturing to produce weatherstrips, door seals, window profiles, and under-the-hood components. These products protect vehicles against water leakage, noise, and temperature variations.

2. Construction and Building

In the construction sector, EPDM extruded profiles are used in window frames, door seals, roofing systems, and expansion joints. Their resistance to weathering and UV light makes them suitable for outdoor applications where long-term durability is important.

3. Electrical and Telecommunications

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WHAT ARE THE TYPES OF RUBBER EXTRUSION PRODUCTION LINES?

Rubber extrusion has become an essential process in the manufacturing of various rubber products, ranging from automotive parts to household goods. Central to this process is the rubber extrusion production line, a system designed to shape raw rubber material into continuous profiles with consistent dimensions. The configuration and technology of these production lines vary based on the type of rubber being processed and the intended final product.

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Rubber 3 Co-Extrusion And Microwave Curing Production Line

Import and export by short circuit ring + multi Zubo + SiC microwave barrier Effectively blocking the microwave leakage of import and export

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Knitting Hose Production Line

The knitting machine developed and manufactured by BAINA. is widely used in bothdomestic and overseas markets, with its market share having reached over 90% in domestic, which is the ideal. choice to be selected as the equipment for constructing the reinforcement layer of automobile cooling systemhoses and turbocharging rubber hoses.

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Hose Cutting Machine

The company is located in Modern Industrial Park of Xianju County, which covers an area of 90 acres and a construction area of more than 80,000 square meters.

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Film Cooling Line

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Screw(standard exhaust type screw*1PC） Screw diameter ￠90 C9（－0.17～－0.257） L/D 20:1 Screw material Japan SM645　 Nitriding treatment （δ=0.4～0.7） Hardness HV800~900 Max RPM 60rpm MAX Water circulation The central part of the screw has a circulating channel and a rotary joint.

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The geometric design size is more beneficial to increase the number of resonant modes and to ensure a good match between the furnace cavity and the magnetron

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Steel Belt（Steel Wire）Unreeling Machine

Steel Belt（Steel Wire）Unreeling Machine, Storage Rack

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Plasma Smoke Treatment Equipment

In the production process of various rubber vulcanized industrial materials, it is necessary to heat and transport the rubber and make a rubber compound which meets various process requirements for production and use, and a large amount of rubber fumes are generated. 

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UNDERSTANDING THE SYSTEM OF A RUBBER EXTRUDER MACHINE

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Rubber Production Line