Supports machining from drawings or samples, offering material and design suggestions for customer applications.
Polyimide (PI) Precision Machining Experts – Dalian Allstar Material
Polyimide (PI), as a premier engineering plastic, offers exceptional high-temperature resistance, excellent mechanical strength, and dimensional stability. However, fully leveraging the potential of PI material and transforming it into precision components that meet specific application needs requires professional machining technology. Dalian Allstar Material Co., Ltd. (Allstar Material) is not only a leading supplier of high-performance PI sheets and rods from China but also possesses profound PI precision machining experience and advanced production capabilities, providing global customers with a one-stop solution from material to finished product.
Why Choose Polyimide PI
Why Choose Polyimide (PI) Material for Precision Machining?
PI material, due to its unique physical and chemical properties, is an ideal choice for precision machining, especially for:
Extreme Temperature Environments
Components must maintain stable performance from cryogenic (-269°C) to ultra-high temperatures (above +260°C).
High Precision & Dimensional Stability
Extremely high tolerance requirements for parts, with minimal dimensional change during use.
Wear Resistance & Self-Lubrication:
Used for moving parts requiring low friction, long life, even in oil-free lubrication conditions.
Electrical Insulation
As critical insulation components in high-voltage, high-frequency environments.
Chemical Inertness
Components need to withstand contact with various chemicals, solvents, or fuels.
Low Outgassing
Suitable for vacuum or ultra-high vacuum environments.
Lightweight Requirements
Seeking lighter alternatives to metal while ensuring strength.
Machinability & Challenges
Precision Machinability & Challenges of Polyimide (PI) Material
PI material exhibits good machinability but also presents characteristics requiring professional handling:
Good Machinability
Can be processed through various traditional and CNC methods such as turning, milling, drilling, tapping, and grinding.
Material Hardness & Toughness
Different PI grades vary in hardness and toughness, necessitating appropriate tool material and cutting parameter selection.
Low Thermal Conductivity
Prone to localized overheating during processing; effective control of cutting heat is crucial to prevent material property degradation.
High Dimensional Stability
While an advantage, this means minute deformations caused by heat or stress during machining must be precisely controlled.
Tool Wear
Some filled or reinforced PI (e.g., glass fiber, carbon fiber reinforced) causes significant tool wear, requiring abrasion-resistant tooling.
Avoiding Stress Cracking
Unsuitable machining parameters or part structures can lead to internal stress concentration, requiring process optimization and subsequent treatments (e.g., annealing) for elimination.
Dalian Allstar’s Professional Response: Leveraging years of research into PI material characteristics and machining practice at our factory, we have established a mature set of process specifications to effectively address these challenges, ensuring machining accuracy and component quality to meet customer’s practical application needs.
Capabilities & Advantages
Dalian Allstar Material's Polyimide (PI) Precision Machining Capabilities & Advantages
Choosing Dalian Allstar Material as your PI precision machining partner provides:
One-Stop Service, from Material to Finished Part
We offer over 1,000 types of PI sheets, rods, and other engineering plastics, available for wholesale, ensuring raw material quality and traceability.
In-house precision machining within our factory shortens the supply chain, improves efficiency, and reduces costs.
Advanced Machining & Inspection Equipment
Equipped with CNC machining centers, lathes, milling, drilling, grinding, and other advanced equipment.
Equipped with CMMs, profilometers, roughness testers, and over 150 precision instruments, our factory ensures products meet strict tolerance standards.
Experienced Technical Team
Our team of engineers and technicians deeply understands PI material characteristics, enabling them to formulate optimal machining plans for different grades and complex structures.
Possessing years of B2B export experience, we are familiar with international standards and customer needs.
Strict Quality Control System
The entire process, from raw material incoming inspection, in-process control, to final product inspection, adheres to the ISO quality management system.
Detailed material certifications and inspection reports can be provided.
Rapid Response & Customization Services
Capable of quickly responding to customer inquiries and order requirements.
Targeted Industry Solutions
We have extensive experience in manufacturing PI components including nuclear power, military fiber optics, sliding bearings, bushings, EV insulation, cable ties, coil bobbins, bearing cages, bolts, nuts, and audio diaphragms, with a deep understanding of industry requirements.
Types
Types of PI Components We Can Manufacture
Dalian Allstar Material can precision manufacture various PI components according to your drawings and specifications, including but not limited to:
Bearings & Bushings
Self-lubricating PI bearings, high-temperature resistant PI bushings, sliding bearing components.
Seals
PI seal rings, valve seats, gaskets, suitable for high-temperature, high-pressure, or chemically corrosive environments.
Insulation Components
Electrical insulators, coil bobbins, connectors, sockets, precision-formed alternatives to electric vehicle insulation paper.
Structural & Support Parts
High-strength, lightweight PI brackets, frames, fasteners (bolts, nuts).
Precision Rails & Sliders
Low-friction moving parts for precision instruments and equipment.
Medical Device Components
Precision components from biocompatible PI (specific grades required).
Semiconductor & Electronics
Wafer chucks, test sockets, thermal insulation pads.
Aerospace Components
Lightweight, high-temperature resistant structural and functional parts.
Process
Our PI Machining Process Overview
Our precision machining process combines advanced technology, expert craftsmanship, and strict quality control to deliver high-accuracy components. From material selection to final inspection, every step is optimized for efficiency, consistency, and superior performance.
Dalian Allstar Material Co., Ltd.
High-quality PI raw materials and superb machining capabilities
is your ideal partner for realizing complex PI component manufacture.
