Professional Custom Rubber Seals Manufacturer & Supplier

With over 16 years of experience, Xingtai Longcheng Sealing Co., Ltd. delivers high-quality rubber O-rings, X-rings, gaskets, and custom parts for automotive, industrial, medical, and electronics applications worldwide.

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ISO 9001, CE, RoHS Certified

16+ Years Experience

Exported to 70+ Countries

OEM & ODM Supported

About Xingtai Longcheng Sealing

A trusted manufacturer of rubber sealing solutions with over 16 years of expertise in material development, mold design, and precision production.

Xingtai Longcheng Sealing Co., Ltd. is a professional rubber seal manufacturer with over 16 years of experience. We specialize in the production of O-rings, X-rings, custom rubber parts, gaskets, washers, stoppers, and other precision rubber components.

Our in-house R&D teams for rubber materials, mold design, and new product development ensure we deliver innovative, high-performance sealing solutions tailored to your exact requirements.

Customization Expertise

We support full OEM/ODM services based on your drawings, samples, or specifications.

Global Reach

Our products are exported to over 70 countries across Europe, America, Southeast Asia, and South America.

Quality Certified

We are ISO 9001, CE, and RoHS certified, ensuring compliance with international quality and environmental standards.

Our Core Strengths

Customization Service

We specialize in non-standard rubber parts and accept custom orders based on your design, sample, or technical drawing.

Quality Assurance

All products undergo strict quality control. Certified under ISO 9001, CE, and RoHS for consistent reliability and safety.

Wide Application

Our seals are used in automotive, machinery, mining, household appliances, railways, medical devices, and more.

Our Products

High-performance rubber and polyurethane sealing solutions for diverse industrial needs.

Rubber O-Rings

Precision-molded O-rings in NBR, EPDM, silicone, FKM, and other materials. Available in standard and custom sizes.

Rubber X-Rings

Improved sealing performance with double-lip design. Ideal for dynamic applications requiring low friction.

Rubber Gaskets

Custom-cut gaskets for flanges, enclosures, and housings. Materials include neoprene, silicone, and EPDM.

Rubber Washers

Vibration-damping washers in various hardness levels. Used in automotive, electronics, and industrial assembly.

Rubber Stoppers

Chemical-resistant stoppers for bottles, tubes, and containers. Available in multiple sizes and durometers.

PU Oil Seals

High wear resistance polyurethane seals for shafts and rotating equipment. Excellent in oil and grease environments.

Rubber Diaphragms

Flexible membranes for pumps, valves, and actuators. Custom shapes and thicknesses available.

Rubber Bushings

Noise and vibration isolation components for automotive suspensions, machinery mounts, and industrial frames.

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16+

Years Experience

70+

Countries Served

10,000+

Molds in Inventory

100%

Quality Inspection

Contact LongchengSeal

Ready to discuss your custom rubber sealing needs? Get in touch with our professional team today.

[email protected]

Julu County, Xingtai City, Hebei Province, China 055250

+86 19565678217

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