Chengxin Sealing King: Professional Solutions for Vacuum Sealing Lips
Are you currently facing these vacuum sealing issues?
Advantages of Chengxin Sealing King
Faced with challenges such as frequent equipment leaks, unstable vacuum levels, and the difficulty of finding equipment that meets custom specifications,Chengxin Seal KingLeveraging our deep expertise in materials science and precision machining technology, we provide you with a reliable sealing solution that addresses failure issues at their source. We not only repair current leaks but are also committed to optimizing your system’s design, transforming your downtime losses into stable production capacity.
Vacuum-Grade Lip Seal Technology
Long-lasting, wear-resistant materials
Flexible, Customizable Services
Professional Support
Extensive product line
Chengxin Sealing King vacuum sealing lips are used across various industries with stringent vacuum requirements, ensuring efficient and stable equipment operation and delivering outstanding performance.
Vacuum Chamber Transfer
Semiconductor and display panel manufacturing require high-vacuum transport. Chengxin sealing lips ensure leak-free operation, improving yield and production capacity while reducing contamination.
Optical Coating Machine
Optical coating requires a pure vacuum. Chengxin sealing solutions feature high gas tightness and low outgassing, ensuring coating quality and extending equipment lifespan.
LNG Fluid Valve Seat Seals
Developed specifically for applications involving cryogenic fluids such as liquefied natural gas, it maintains excellent sealing performance in extremely low-temperature environments, ensuring safe and reliable transportation.
A Wide Range of Product Applications
Food Packaging Industry
Electronics Manufacturing Industry
Medical Devices
Automotive Industry
Industrial equipment
Aviation and Aerospace
Guide to Selecting Materials
Silicone
-60°C to 200°CExcellent temperature resistance, good elasticity, and resilience. The material is non-toxic and odorless, fully complies with food contact standards, and offers excellent biocompatibility.
Food packaging, medical devices, daily necessities, and baby products.
Nitrile Rubber (NBR)
-40°C to 120°CIt offers good oil resistance and wear resistance. It is cost-effective and is one of the most widely used general-purpose rubber materials in the industrial sector.
General industrial equipment, hydraulic system seals, fuel systems, O-rings.
Fluorocarbon Rubber (FKM)
-20°C to 200°CExceptional resistance to chemical corrosion, excellent oil resistance, and high-temperature resistance. Maintains an exceptionally long service life and stability even under harsh conditions.
Automotive industry, chemical equipment, aerospace, and semiconductor manufacturing.
Polyurethane (PU)
-30°C to 80°CExceptional wear resistance, high mechanical strength, and tear resistance. It also offers good elasticity and shock absorption.
Mechanical equipment cushioning, pneumatic system seals, and conveyor belt equipment.
Customer Success Stories
A well-known food manufacturer was facing the problem of shortened product shelf life due to poor packaging seals. After implementing our vacuum sealing lips, the product’s shelf life was extended by 30%, the customer complaint rate was reduced by 85%, and annual cost savings exceeded 2 million yuan.

Food Manufacturing - Vacuum Packaging Upgrade
A vacuum coating system used by an electronic components manufacturer was experiencing seal aging, which was affecting product yield. After replacing the seals with our high-performance sealing lips, the system’s vacuum stability improved, and product yield increased from 92% to 98.5%, significantly reducing scrap losses.

Electronics Manufacturing - Solutions for Improving Yield Rates
Medical device companies must comply with stricter FDA certification standards. We provide medical-grade silicone sealing solutions to help our clients successfully obtain certification and bring their products to international markets, resulting in revenue growth of 40%.

Medical Devices - Compliant with Certification Standards
Choose Chengxin, Choose Peace of Mind
01Professional Consultation
Our engineers will provide a free assessment of your application needs and recommend the most suitable solution.
02Sample Testing
We will provide samples for actual testing to verify that their performance meets your expectations.
03Rapid delivery
We’ll quickly arrange production after your order is confirmed to ensure your project stays on schedule.
04Installation Support
Detailed installation instructions and live online support
05Ongoing Services
Long-term technical support and regular follow-ups ensure the system runs smoothly
Cheng Hsin Seal King not only provides high quality products, but also emphasizes the long-term cooperation relationship with customers. Our technical team is always on standby to assist you in solving all kinds of sealing-related technical problems, ensuring that your equipment always maintains the best running condition.
Get Started on Your Sealing Upgrade Plan Today
Let Chengxin Sealing King help you solve your sealing challenges
No matter what sealing challenges you face, Chengxin Sealing King can provide professional solutions. Our technical team is always ready to assist you, offering comprehensive support from needs analysis to product delivery.
Contact us now to take advantage of the following offers: