Custom profiles and channels
Guides, rails, covers, trims, guards and other continuous sections can start from your drawing or an existing sample. Show the mating components and the space available so the review covers the way the section is used.
Product Development & Manufacturing
Custom Plastic Extrusion
From material preparation to a profile that works in your product.
Jizon helps distributors develop, improve and manufacture plastic profiles, tubes, channels and seals. We bring material selection, extrusion tooling, in-house PVC compounding and pelletizing, and downstream processing into the same product discussion.
What we can develop and manufacture
Tubes, pipes and flexible lengths
Bring the required diameter, wall, length or coil format, connection details and use conditions. Garden hose and irrigation pipe directions from our product range can also provide a starting reference for a project.
Seals and refrigerator door gaskets
The discussion includes the section, contact area, mounting groove and finished frame. For magnetic door gaskets, the magnet arrangement and door geometry belong in the same product review.
PVC trim and foam-profile directions
Existing PVC moulding and trim product groups provide references for decorative and functional sections. The material structure, surface, profile geometry and installation need to be reviewed together.
A wider product assembly
An extruded component may need molded end parts, metal brackets or other supporting pieces. Share the complete assembly so we can review how our plastic and metal processes may contribute to the product.
Choose how your project starts
Start from an existing product line
Review the closest current product group and identify the size, material, appearance or packing changes your market needs.
Improve an existing product
Bring the current part and explain the issue in use: fitting, sealing, handling, installation or appearance. The review can cover both the material and the manufacturing route.
Develop a new product
Start with the application, target customer and key requirements. Product Design & DFM, suitable early prototypes, tooling review, trials and manufacturing planning can then be organized around that brief.
An extrusion process built around your application
A profile may look simple, but its performance depends on several decisions working together: the material, cross-section, die, cooling method, line speed and final processing.
Start with the job the part needs to do. Does it guide another component, protect an edge, close a gap, form a channel or provide a sealing surface? We review the mating parts, important dimensions and delivery format before developing the extrusion route.
Extrusion is suited to continuous products with a consistent cross-section. Length, holes, printing, adhesive backing and packing can then be considered around the way the product will be installed or sold.
Thermoplastic materials we work with
A polymer name is the start of material selection. The specific grade and formulation need to be reviewed with the product geometry, manufacturing route and service conditions.
| Material | What to bring into the discussion |
|---|---|
| PVC | Rigid or flexible construction, hardness, color, surface and compound requirements. |
| ABS | Profile geometry, visible surfaces, mating parts and dimensional requirements. |
| PE | Shape, wall thickness, flexibility and the intended operating environment. |
| PP | Product geometry, assembly method, material grade and end-use requirements. |
| PA | Grade, conditioning requirements and the dimensions that matter in assembly. |
| TPV | Flexible profile geometry, contact surfaces, fit and material requirements. |
Tell us where the product is used, what it touches and what it needs to withstand. Where temperature, outdoor exposure, chemicals, fire performance or regulated contact matter, define the requirement early so the material and validation plan can be reviewed together.
Other material requests can be discussed against the specific application.
In-house PVC Compounding & Pelletizing
Develop the compound alongside the product
Our in-house PVC preparation connects the material discussion with extrusion trials. A concern about hardness, color, surface or processing behavior can be reviewed at the compound stage as well as at the die and production line.
For rigid PVC, the review considers the resin and additive system alongside the profile's dimensional, surface and mechanical requirements. For flexible PVC, the discussion also considers the required softness, interaction with contacting materials and intended service conditions.
The formulation brings together resin, stabilization, processing and lubrication, performance modifiers, fillers and pigments as the application requires. These choices interact: changing one ingredient can affect more than the single property being targeted.
We start from the product brief, review the material direction and use trial results to guide adjustment. The material reference and product acceptance criteria are agreed for the project.
Our PVC pelletizing route
Weighing → High-speed mixing → Twin-screw plasticizing → Hot die-face cutting → Three-stage air cooling → Screening and collection
High-speed mixing distributes the resin and additives and prepares the blend for the next stage. In our layout, mixing and holding are on the upper platform, with material transferred down to the pelletizing equipment.
The twin-screw stage plasticizes and homogenizes the prepared material. Pellets are cut at the die face and then carried through the air-cooling stages before screening and collection.
This sequence creates several useful review points: mixing consistency, stable feeding, pellet shape, cooling, dust and collection condition. They connect the compound preparation to the behavior of the material in subsequent processing.
In-house PVC pelletizing is one material preparation capability. The appropriate feed form and extrusion route are selected for each project.
How the extrusion line forms your profile
Prepare and feed the material
The starting material and feed form are selected for the job. Consistent preparation and feeding help the extruder receive a steady supply. The material route may use a suitable prepared compound or dry blend, depending on the product and equipment.
Plasticize and establish steady flow
The screw conveys and plasticizes the material before it reaches the die. Temperature, screw action, feed rate and residence time need to work together. The useful question is how consistently the material reaches the tooling, with the required processing condition.
Shape the continuous cross-section
The die distributes the melt and forms the profile. Solid walls, hollow sections, ribs, grooves and sealing features place different demands on the flow path. Tooling review connects these features with the selected material.
Size and cool
The profile passes into the appropriate sizing and cooling arrangement. Support, cooling and, where applicable, vacuum calibration help establish the final shape while the material gains sufficient rigidity for handling.
Pull and prepare the delivery length
Haul-off equipment establishes the line movement. Cutting or coiling then prepares the required delivery format, followed by the agreed finishing and packing operations.
The settings for PVC pelletizing and profile extrusion are developed for their respective jobs. They are reviewed with the material, equipment, tooling and trial results.
The die determines more than the outline
A drawing defines the intended profile. The extrusion die must turn material flow into that cross-section continuously.
For a hollow profile, the tooling needs to distribute the material around the internal features and bring the flow together at the outlet. Wall thickness, ribs, corners and openings all affect the tooling discussion.
The review covers the flow path, support of internal features, die opening and the relationship with downstream sizing. Uneven flow can appear as wall variation, distortion or different exit behavior across the profile.
This is why we review the material and cross-section together. During trials, observations at the die are considered alongside measurements after cooling. That helps distinguish a tooling issue from a change introduced later in the line.
Cooling and sizing: where the shape becomes usable
A profile leaving the die still needs to be supported and cooled into its final condition.
For profiles using a water-based sizing and cooling arrangement, the discussion includes water temperature, flow, contact with the profile, sizing support and vacuum where applicable. Cooling needs to be considered across the section, particularly around hollow areas and uneven wall geometry.
The customer-facing result is the part's straightness, section dimensions and fit. A change in those results may involve cooling, support or line speed as well as the material and die.
We review the dimensions that affect your assembly and the stage at which the profile should be measured.
Haul-off and cutting: connect line speed to the finished part
The haul-off moves the cooled profile at a controlled speed. Its movement needs to match the extrusion output and the capacity of the sizing and cooling stages.
The balance affects weight per length, wall thickness, section dimensions and straightness. Grip and alignment also matter: the profile must move consistently without damage to the surfaces or hollow features.
For cut lengths, the measuring and cutting sequence follows the actual movement of the profile. We discuss the required length, cut condition and packing arrangement as part of the project brief.
Quality review around the features that matter
A useful inspection plan starts with the product's job. An important slot, sealing lip or mating surface may need more attention than a nonfunctional outer dimension.
We work from the drawing, reference sample and agreed product requirements to identify what should be reviewed during trials and production planning.
| Product concern | What the process review considers |
|---|---|
| Wall thickness or weight variation | Feeding, extrusion output, die flow and actual haul-off movement. |
| Bow, twist or an unstable section | Flow balance, sizing support, cooling distribution and line alignment. |
| Surface lines, roughness or color change | Material condition, plasticizing, thermal history and die condition. |
| Grip marks or cut-length variation | Haul-off contact, movement, length measurement and cutting synchronization. |
| Hardness, color or compound variation | Material reference, formulation, preparation and the agreed sample criteria. |
These are connected checks. A visible defect can have more than one cause, so the review considers where it first appears and how it changes through the line.
Share the dimensions, visual surfaces and functional checks that are important to you. Application-specific tests, acceptance limits and reporting requirements can then be discussed before the supply plan is confirmed.
Downstream processing and packing
Finish the profile for the way it will be used
Secondary operations can make an extruded length easier to install, identify or handle. Define these requirements with the profile drawing so they can be considered alongside the extrusion route.
- Cut to length: discuss finished length and the required end condition.
- Punching: identify hole positions, shapes and their relationship to mating parts.
- Printing: provide the marking content, location and appearance requirement.
- Adhesive backing: review the intended contact surface, strip position and application.
- Coiling: discuss the format where the profile and material are suitable.
- Packing: agree bundles, cartons, identification and protection for handling and delivery.
The finished part, its secondary work and its packaging belong in the same project review.
Products made by this process
Profiles & channels
Custom cross-sections for guides, covers, trims, rails and channels. Bring the section drawing and the parts the profile needs to fit.
Tubes
Review diameter, wall thickness, length or coil format, and the application requirements with the selected material.
Seals & gaskets
Discuss the flexible section, contact surfaces, fit and delivery format. Material choice and profile geometry are reviewed together.
From a market need to a production reference
You may already have a profile that needs improvement, a sample to adapt for a local market, or an idea that needs to become a manufacturable part.
Start by showing us the application and what needs to change. We review the material and section, discuss tooling and sample requirements, and use trial observations to refine the product direction.
Before moving into the agreed supply plan, the conversation covers the product reference, important dimensions, surface and functional requirements, secondary work, packing and quantity.
For wider design work or an early physical model, continue to Product Development & DFM to discuss the appropriate next step.
Questions to discuss before starting
Can you work from an existing sample?
Yes. A sample helps explain the shape, finish and assembly, especially when accompanied by photographs of its application. Tell us what needs to stay the same and what you want to improve. A drawing and identified critical dimensions help turn that reference into a clear development brief.
Can an existing profile be customized for our market?
We can review changes to the section, fit, length, color, material and secondary work. The effect on tooling and processing depends on the change. Include the mating components or installation details so the review addresses the way the part is actually used.
What information helps you recommend a material?
Share the application, expected environment, contacting materials, flexibility or hardness requirement, color and important performance criteria. If you already use a grade or have a material data sheet, include it. The grade and product geometry are considered together.
Can you adjust a PVC compound as well as the profile design?
Our in-house PVC compounding and pelletizing capability allows the material direction to be reviewed alongside the extrusion project. Describe the issue you are trying to solve, such as hardness, color, surface or processing behavior. The proposed adjustment needs to be assessed through the relevant material and product trials.
What tolerances and lengths can you offer?
The achievable dimensions and delivery lengths depend on the cross-section, material, tooling, cooling, finishing and application. Send the drawing with the critical dimensions marked. We review what needs to be controlled and agree the applicable limits and sample checks for the project.
Can you combine extrusion with finishing and packing?
We review cut lengths, punching, printing, adhesive backing, suitable coiling formats and packing as part of the project. Supplying these details early helps align the profile and production route with how your team or customers will handle and install the product.
How do samples fit into the development process?
Samples help check the selected material, section, surface, dimensions and assembly. Share the criteria you will use to evaluate them, including any application-specific tests. The trial and confirmation plan can then be organized around those requirements.
Do you sell directly to retail customers?
Jizon focuses on product innovation and manufacturing innovation for distributors. We do not sell retail or compete for your local customers. We welcome distributor partners who want to improve products, develop new lines and serve their markets with us.
Connect with our other manufacturing processes
Let's review your extrusion project
Send a drawing, sample or existing profile, together with:
- The application and mating components.
- Material, hardness, color and service requirements.
- Critical dimensions, wall thickness, length and expected quantity.
- Required finishing, packing and destination market.
- What needs to improve compared with your current product.