U Shape Rubber Seal for Metro Sliding Doors

This is a U-shaped rubber seal, specifically designed for sliding doors in subway systems. It boasts superior sealing performance, impact resistance, and noise reduction. Made of highly elastic and age-resistant EPDM rubber, it maintains its elasticity even in extreme environments ranging from -40 ℃ to 80 ℃. It is UV-resistant and ozone-resistant, precisely matching the opening and closing trajectory and track structure of subway sliding doors. This effectively cushions the impact force on the door body, reducing mechanical wear. It tightly fills the gap between the door body and the track, preventing dust, rainwater, and foreign objects from entering. The door's mechanical components simultaneously reduce noise during opening and closing, thereby improving passenger comfort. We offer customized extruded U-shaped rubber solutions to meet your specific needs. Guangdong Zhongxiang manufactures and supplies U-groove decorative gaskets, U-section parts, U-seals, U-shaped rubber seals, U-channel weather stripping, and U-gaskets in various sizes and shapes. Our engineering team can also quickly formulate custom compounds with different hardnesses, colors, and other special requirements, including flame-retardant and anti-static properties.

Guangdong Zhongxiang New Material Co., Ltd. is a manufacturer specializing in the production of non-standard customized rubber and plastic products, producing extruded and molded rubber products. We are ISO 9001 quality certified, EN 45545 railway flame retardant certified, and ASTM D2000 rubber standard certified. Our products are widely used in core subway components (sliding doors, platform screen doors, security doors), and we have cooperated with major rail transit equipment integrators since 2010. Our products have been validated through long-term operation. We provide tailored solutions to meet the needs of different subway systems.
Specifications

Custom Extruded Rubber Process

1. Requirements Communication: The client provides the rail sliding door model, drawings, operating environment (including temperature, humidity), and performance requirements.
2. Solution Design: A customized solution (including material selection, performance parameters, and product quotation) will be provided within 24 hours.
3. Sample Production: Sample production and delivery will be completed within 7-12 business days, accompanied by a test report.
4. Sample Confirmation: The client tests the compatibility and performance, providing feedback for any necessary adjustments as needed.
5. Mass Production: Mass production will be completed within 7-12 days, with real-time progress updates throughout.
6. Delivery and Acceptance: Complete certification documents and factory test reports will be provided to support third-party acceptance.

Customized Range

1. Customized Size: We customize the width, height, and length of the U-shaped groove according to customer-provided drawings to precisely match the gap between the track and the door. 
2. Customized Material: Weather-resistant EPDM rubber, high-temperature resistant silicone rubber, neoprene rubber, natural rubber, nitrile rubber, etc. Flame-retardant and anti-static functions can be added for special requirements. 
3. Customized Structure: We can optimize the number of sealing lips (single/double/triple layers), add anti-slip particles or cushioning bumps to improve adaptability and performance.

Key Reasons to Choose ZYXRubber

Specialised R&D Strength: Recognised as a "Guangdong Provincial Specialised, Refined, Characteristic, and Innovative Enterprise", with multiple new technology patents and mature formulas for all major rubber types (EPDM, silicone, fluororubber, etc.)
Rich Metro Industry Experience: 
With numerous subway project cases, we have successfully provided sliding door sealing strips, anti-collision strips, and insulation products for lines such as the Nanjing Metro Line 2 and the Shenzhen Metro Line 4, as well as Thailand, Canada, and India. Our products have undergone extensive operational verification and have been running stably for over 5 years on multiple lines.
Strict Quality Control: From Material to Product​:
Uses rubber from global top suppliers (Germany LANXESS, U.S. DuPont, Japan Mitsui) and reinforcing agents from U.S. Cabot to ensure base material stability.​ Complies with ISO 9001:2015 quality management system and ISO 14001 environmental management system, with full compliance in material safety (RoHS standards).​
Strong Production & Delivery: Reliable Supply Assurance:
A 6600㎡ square foot factory with automated extrusion lines and microwave vulcanization equipment, producing 800,000 meters of metro seals annually.​ Cooperates with DHL/FedEx and ocean freight agents, providing door-to-door delivery with real-time logistics tracking for overseas metro projects.
Highly competitive pricing: We offer highly competitive prices.

Get a free quote. Please send us your CAD drawings or samples of heavy-duty rubber U channels.