Plate PAI Meldin® 4000

abrasion-resistantwear-resistantchemical-resistant

Product overview
Meldin® 4000 is a material line of PAI (polyamide-imide) based compounds. The different numbers within the 4000 series refer to the unique composition and different properties of the various compounds.

Manufacture & forms
Meldin® 4000 grades are manufactured by injection molding that can meet tight tolerances. A limited number of shapes are also available for prototyping activities.

Performance summary
The 4000 series formulations share common properties that make them suitable replacements for metal components: they are stiff and retain high mechanical strength at elevated temperatures; they are very durable in regards to wear; and they are chemically compatible with many fluids (for example fuels and oils). Meldin® 4000 grades have excellent fatigue resistance — when exposed to cyclical stress (loading or vibration), the material maintains very high tensile and flexural mechanical properties. In addition, the material exhibits excellent wear resistance and good dimensional stability in aggressive chemical environments.

Key features

• PAI-based (polyamide-imide) engineered for low wear under high load
• High mechanical strength at elevated temperatures
• Excellent fatigue resistance (retains tensile and flexural properties under cyclic loading)
• Very good wear resistance
• Chemical compatibility with many fluids (e.g., fuels and oils)
• Manufacturing available by injection molding and hot compression molding
• Tight tolerance control achievable via injection molding

Standard Specifications
Materials: Polyamide imide (PAI) — engineered for low wear under high load.
Service Conditions: Temperature: -200°C to +290°C; Mechanical Strength: 70 MPa.
Manufacturing Process: Hot compression molding; Injection molding.
Features: Tolerance Control: +/- 40 μm; Capacity: >4 M/yr; Defects Program: 0 ppm.
Dimension: Injection molding: φ=[2;200] mm.

Performance highlights / application advantages

• Suitable replacement for metal components where stiffness and high-temperature mechanical strength are required
• Durable in harsh wear applications
• Compatible with many automotive and industrial fluids (fuels, oils)
• Self-lubricating tendencies and long durability under extreme temperature and load
• Dimensional stability in chemical environments
• Consistency enabled by 100% part inspection capability

Additional technical notes
Grades within the 4000 series differ by composition and resulting properties; specific grade selection (for example 4210, 4310, 4320, etc.) determines exact mechanical/tribological performance and suitability for particular applications.

Caractéristiques / spécifications techniques

• Brand: Meldin® (PAI-based thermoplastic series)
• Material base: Polyamide-imide (PAI)
• Temperature range: -200°C to +290°C
• Mechanical strength (listed): ~70 MPa
• Manufacturing methods: Hot compression molding; Injection molding (capable of tight tolerance control)
• Tolerance control (injection molding): ±40 μm
• Production capacity note: >4 million parts per year (as a reference for volume capability)
• Defect program target: 0 ppm
• Typical molding diameter range (injection): φ = 2 mm to 200 mm
• Key properties: high stiffness, high tensile and flexural strength at elevated temperature, excellent fatigue resistance, high wear resistance, chemical compatibility with fuels and oils, self-lubrication characteristics
• Typical applications: replacements for metal components in static and dynamic sealing, wear-critical components, high-temperature and cryogenic applications where appropriate