Reliable seals built through
material engineering
Ceimin combines material formulation, seal design, precision manufacturing and inspection to deliver reliable PTFE, FFKM and custom sealing solutions for real equipment conditions.
Ningbo Chenming Seals
Manufacturing Co., Ltd.
Focused on sealing technology R&D and high-performance seal manufacturing, Ceimin provides material, structural and product support for demanding industrial operating conditions.
Our products cover PTFE oil seals, spring energized seals, scroll pump tip seals, non-contact labyrinth seals, PEEK seals, UPE seals, high-performance rubber seals and wear-resistant sleeves, serving vacuum pumps, compressors, fluid equipment, food and pharmaceutical machinery, precision industry and other fields.
Standardized industrial park and scalable operation
A standardized workshop environment and centralized production space support precision manufacturing, quality control and stable batch delivery.
Precision CNC machining
Machining quality is controlled for engineering plastics, metal cases, sleeves and other precision components.
Automated production
Automated inspection and robotic production lines improve consistency in batch manufacturing.
Quality control through the full process
Incoming, in-process and outgoing inspections cover material composition, properties, appearance, dimensions, sealing performance and life testing, with corresponding batch records retained.
Incoming inspection
Material grade, condition, appearance and key properties are confirmed to establish a qualified basis for subsequent processing.
In-process inspection
Critical processes, dimensions and assembly status are inspected to identify manufacturing deviations in time.
Performance testing
Wear, chemical and physical property, sealing performance and service-life tests are used to validate material and structure combinations.
Outgoing inspection
Finished product appearance, dimensions, quantity and batch information are reviewed before delivery.
Material systems matched to operating conditions
The same material may show different friction and wear results against different mating surfaces. Ceimin builds data through material and counterface pairing tests to help select more suitable formulations.
High-performance engineering plastics
PTFE, UPE, PEEK, PPS and other composite materials are used for wear resistance, temperature resistance, media compatibility and low-friction requirements.
High-performance rubber
Materials including FFKM perfluoroelastomer are used for high-temperature and highly corrosive media environments.
High-performance alloys
Elgiloy, Inconel, Hastelloy and other alloys meet corrosion resistance and temperature requirements for spring energized seals.
Serving typical industrial equipment
Product applications cover rotary, reciprocating and static sealing scenarios, with selection and customization available according to equipment operating boundaries.
Vacuum pumps
Dry screw pumps, rotary vane pumps and scroll pumps
Compressors
Screw air-end shaft seals and wear-resistant sleeves
Fluid equipment
Mixers, centrifuges, pumps and valves
Food and pharmaceutical
Filling, metering and clean equipment
Precision industry
Semiconductors, analytical instruments and automation
Management systems and enterprise qualifications
Ceimin holds ISO management system certifications, national high-tech enterprise qualification, provincial technology enterprise qualification and multiple national patents. These support standardized management, sealing technology development and stable delivery of high-performance seals.
ISO 9001
ISO 14001
ISO 45001
National High-Tech Enterprise
Provincial Technology Enterprise
Multiple National Patents
Need seal selection for your equipment?
Submit temperature, pressure, speed, media and installation dimensions. Our engineers will evaluate suitable materials and seal structures.