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Polyetherimide (PEI)

PEI Polyetherimide Products Customization_ High Wear & Temperature Resistant Gears_ Bushings_ CNC Precision Machining_ Guangzhou Best Rubber & Plastic Manufacturer
PEI (Polyetherimide) is a high-performance engineering plastic with excellent high temperature resistance (long-term 180℃), corrosion resistance, insulation and high rigidity. It also has good processing performance and can be customized into various PEI products through CNC precision machining, compression molding and extrusion molding, including gears, bushings, seals, precision parts, etc. It is widely used in electronics, medical, aerospace, mold, metallurgy and other industries, supporting non-standard customization to meet different working condition requirements.


产品详情


Guangzhou Best Rubber & Plastic has been focusing on the customization and processing of PEI (Polyetherimide) products for many years, deeply exploring the high-end demand of various industries for high-performance PEI products. We accurately grasp the core advantages of PEI materials, adopt high-qualityPEI raw materials (industrial grade/medical grade optional), combined with advanced CNC precision machining, compression molding and extrusion molding processes. We can customize various PEI products according to the drawings (CAD, STP format preferred), samples or specific working condition requirements provided by customers, including PEI gears, PEI bushings, PEI seals, PEI precision parts, etc. The tolerance can be accurately controlled within ±0.01mm, the surface is smooth and burr-free, the toughness is excellent and not easy to deform, which can completely meet the use needs of high-end equipment and can replace traditional metal parts, greatly reducing equipment wear and maintenance costs.



As a representative of high-end engineering plastics, PEI, with its superior comprehensive performance, combined with our flexible customization services, has been widely used in many industries with high requirements for material performance. The following are specific application scenarios:


Application Scenario 1: Electronics Industry - PEI Gears, PEI Insulating Bushings: Customized PEI gears and insulating bushings for electronic equipment 

enterprises, taking advantage of PEI's excellent insulation and high temperature resistance, adapting to high-end electronic instruments, flow meters and other equipment, avoiding short circuits, ensuring stable operation of equipment, and having wear resistance to extend the service life of accessories.


Application Scenario 2: Medical Industry - PEI Medical Bushings, Precision Parts: Customized medical-grade PEI bushings and precision parts, using medical-grade PEI raw materials, non-toxic, tasteless and no precipitation, complying with medical industry standards, adapting to medical wheelchairs, diagnostic equipment and other products, which can withstand high-temperature sterilization and ensure medical use safety, and has been recognized by medical industry customers.


Application Scenario 3: Aerospace Industry - PEI Precision Gears, Seals: Customized PEI precision gears and seals for the aerospace field, relying on PEI's high rigidity, resistance to extreme temperatures (-60℃~200℃) and radiation resistance, adapting to harsh aerospace working environments, can operate stably in extreme environments without frequent maintenance, providing reliable support for aerospace equipment.


Application Scenario 4: Mold/Metallurgy Industry - PEI Mold Bushings, Wear-Resistant Gears: Customized PEI mold bushings and wear-resistant gears for mold and metallurgy enterprises, using PEI's wear resistance and corrosion resistance to resist the scouring and corrosion of mold processing and metallurgical furnace materials, reduce the loss of accessories, extend the service life of equipment, and reduce the maintenance cost of enterprises.

We always take customer needs as the core, with a professional technical team and a complete PEI customization and processing system. According to the working condition needs of different industries, we can optimize product formulas and processing processes, provide one-on-one customized services, and follow up the whole process from raw material selection, process debugging, sample production to mass delivery to ensure that the products fully adapt to the customer's use scenarios and help customers improve equipment operation efficiency and reduce production costs.


To help customers understand our PEI customization and processing services, material characteristics and related processes, the following are frequently asked questions (FAQ) for reference:
Q1: What types of PEI products can be customized? What processing technologies are supported?

A: Full-specification non-standard customization is supported. Core products include PEI gears, PEI bushings, PEI seals, PEI precision parts, PEI electronic accessories, PEI mold parts, etc., with no restrictions on product types; main processing technologies include CNC precision machining, compression molding and extrusion molding. We can select the appropriate processing technology according to the product structure, size and working condition requirements to ensure that the product performance meets the standards.


Q2: What are the core characteristics of PEI materials? What grades are available?
A: The core characteristics of PEI materials are high temperature resistance (long-term 180℃, short-term above 200℃), strong corrosion resistance, excellent insulation, high rigidity and good toughness. It also has good biocompatibility and no precipitation; the grades are mainly divided into industrial grade and medical grade. Industrial grade is suitable for electronics, mold, metallurgy and other industries, and medical grade complies with medical industry standards, suitable for medical equipment and other scenarios. Customers can choose the corresponding grade raw materials according to their own needs.


Q3: What information is needed for PEI product customization? What is the inquiry process?

A: For customization, it is recommended to provide product drawings (CAD, STP format preferred), specific dimensional parameters, working conditions (such as temperature, pressure, contact medium, wear intensity) and batch requirements; Inquiry process: Customer provides customization requirements → We calculate raw material and process costs according to the requirements → Provide accurate quotation and production cycle within 24 hours → Customer confirms the quotation → Sign the contract → Sample production (optional) → Mass production → Quality inspection and delivery.


Q4: What is the production process of PEI products? How long is the production cycle?

A: The complete production process: Raw material selection → Formula optimization → Raw material drying → Processing and forming (CNC/compression molding/extrusion) → Precision processing → Surface treatment → Quality inspection (dimensional, performance testing) → Packaging → Delivery; The production cycle of conventional PEI products (such as small gears, bushings) is 3-5 days, and the production cycle of large and complex accessories or batch orders is 7-10 days. Urgent production can be coordinated to ensure on-time delivery.


Q5: Which industries are PEI products suitable for? What are the advantages compared with other engineering plastics?

A: PEI products are mainly suitable for electronics, medical, aerospace, mold, metallurgy, new energy and other industries; Compared with other engineering plastics, its core advantages are more prominent in high temperature resistance, insulation and rigidity, and it has good processing performance and can be customized into complex structural parts. It has a longer service life than ordinary engineering plastics and can replace traditional metal parts, reducing equipment weight and maintenance costs.


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