chamfer
Used to remove sharp edges and improve assembly feel and safety; especially useful for appearance edges and assembly guide surfaces.
Polyethylene (PE)
Polyethylene (PE)(polyethylene) is a widely used type of general-purpose plastic with excellent chemical corrosion resistance, impact resistance, and good flexibility.
Quote checklist: Upload your 3D model and, when available, a 2D drawing. Identify the required process, material, quantity, critical dimensions, finish, appearance standard, and target delivery date.
Key Material and Manufacturing Parameters
Engineering note: Values below are typical reference ranges. Final manufacturability, tolerances, material condition, surface finish, cost, and lead time depend on the drawing, geometry, quantity, and selected process.
Upload CAD files and mark critical features for an engineering review before production.
| Process | Injection Molding |
|---|---|
| Material | PE (polyethylene) |
| Positioning | Low cost general purpose parts/corrosion resistant applications |
| Accuracy | ±0.2 mm |
| Minimum wall thickness | 1.0mm |
| Service temperature | 300-600℃ |
| Tensile strength | 450-1100MPa |
| Density | 7.7-8.5 g/cm³ |
| Finishing | Chamfering, grinding, bonding, screen printing, laser engraving |
| Typical lead time | Related to structural complexity, mold plan, quantity and finishing; clear delivery and expedited options will be given after uploading the file |
Finishing
polish
Used to improve local feel and surface consistency; if there are clear standards for appearance, it is recommended to provide reference drawings or acceptance requirements.
bonding
Suitable for assembly and packaging of component structures; please note the bonding location, strength requirements and whether the adhesive line needs to be hidden on the exterior surface.
screen printing
Suitable for logos, scales and other graphic information; it is recommended to provide vector files and clarify the location, size and color requirements.
Laser engraving
Suitable for serial numbers, QR codes and durable markings; please provide a content list and engraving location instructions to quickly confirm the feasibility of the process.
Why Choose PE (Injection Molding)
Low-cost universal parts are more user-friendly
It is suitable for rapid implementation in budget-sensitive projects, making it easier to achieve cost control from prototype verification to batch injection molding.
Corrosion resistance scenarios can be prioritized for evaluation
When parts need to be exposed to certain chemical media or humid environments, engineering evaluation and selection recommendations can be made based on the media and temperature conditions.
Injection molding is highly efficient
Suitable for repetitive parts and large-scale production; the larger the quantity, the less mold and preparation costs can be diluted.
Marking and secondary processing optional
Supports chamfering, grinding, bonding, screen printing and laser engraving to facilitate productized appearance and traceability marking.
Recommended Applications
- low cost common parts: Injection molded parts with relatively conventional structure and pursuit of cost and efficiency.
- Corrosion resistance requirements: Parts that require certain adaptability to chemical media/humid environments (it is recommended to note the media and temperature)
- From functional validation to mass production: Hope that the material route is stable to facilitate the transition from the verification stage to mass production
- Need identification: Optional screen printing/laser engraving to realize information such as logo, serial number or QR code
Consider Another Material or Process
- Strength/temperature resistance priority: If you are more interested in strength, temperature resistance, wear resistance or rigidity, it is recommended to evaluate higher performance engineering plastics.
- Very high quality appearance: If you have strict requirements for textures such as mirror/high gloss, it is recommended to evaluate the material and mold surface plan simultaneously.
- Structural limit thin-wall/large plane: It is recommended to do DFM first to evaluate filling, shrinkage and deformation risks and optimize the structure.
- Tight tolerances on critical assemblies: Need to combine mold and process control scheme, it is recommended to provide 2D tolerance marking
Design and DFM advice
- Uniform wall thickness and structure: Try to keep the wall thickness as consistent as possible to avoid sudden changes in thickness; it is recommended to reinforce or partition the structure for large surfaces to reduce the risk of shrinkage and deformation.
- Key dimensions: For key features such as assembly hole positions, positioning surfaces and sealing surfaces, it is recommended to provide 2D markings and indicate tolerance requirements to facilitate priority control.
- Chamfers and fillets: Sharp edges and corners are not conducive to demolding and durability. It is recommended to add chamfers/rounded corners to improve assembly feel and reliability.
- Corrosion resistance working conditions description: If you need corrosion resistance, please write down the contact medium, concentration, temperature and contact method (immersion/spray/intermittent) in the remarks to facilitate more accurate selection.
- Logo and appearance technology: For screen printing/laser engraving, please provide the content and location; for appearance-sensitive surfaces, it is recommended to specify the "appearance surface/non-appearance surface" in order to formulate processing and inspection standards.