Products Description
high quality raw material
Material Composition & Key Properties:
Primary Material: High-quality butyl rubber (≈65% composition), ensuring superior elasticity, releasability, and chemical resistance.
Performance Advantages:
Exceptional resistance to solvents and high-temperature environments.
Enhanced bond strength (≥3.5 KN/m) between rubber gasket valve and tube body, guaranteeing structural integrity.
Optimized durability for extended service life under demanding conditions.

fine workmanship
Superior Material & Manufacturing:
Premium Construction: This 3.50-8 inner tube made with a rubber-covered copper valve process, ensuring durability and airtight sealing.
Quality Assurance: Rigorous production standards deliver >99% product qualification rate, guaranteeing consistent reliability.
Exceptional Tensile Strength: Exceeds national standards with ≥4.5 MPa at joints (vs. standard 3.5 MPa requirement).
Leak-Resistant Design: High airtightness at the air nozzle minimizes air leakage for long-term pressure retention.

Strong technology development

Tensile Strength Test
This 3.50-8 inner tube is designed to excel under challenging conditions, thanks to its remarkable elongation of 500% and a robust tensile strength of 8.5 MPa.
These impressive specifications mean that the tube is not only highly flexible but also incredibly durable, allowing it to endure the wear and tear associated with various road conditions. Whether it's potholes, cobblestones, or uneven terrains, this inner tube is built to last.

Various Certificates Support
In the past 30 years, our factory has passed IS09001, ISO14001 Certificates, with full-size production lines/Advanced production equipment/Professional process requirements/Strong technology development /Professional sales team/excellent after-sales service/Adequate capacity looking forward to establishing a long-time Win-Win business Cooperation with all the customers from all over the wor
company profile
SHANDONG INKLIDA CO., LTD is a professional tire, inner tube, and Tire flaps manufacturer, located in Qingdao, Shandong province, since 1992. With 30 years of development, until now, INKLIDA products have sent to more than 60 countries all over the world!
Cost-Effective
This product is available at an affordable price, making it a great option for users on a budget, including "3.50-8 inner tube wholesale industrial tube 400-8" buyers looking for a cost-effective solution.
Excellent Warranty
The product comes with a 1-year warranty, providing peace of mind for users who value reliability and security, especially for users who have purchased this product for "wholesale" purposes.

30Y
More than 30 years experience
60C
Ship to more than 60 countries
15D
7-15days fast delivery
100%
100% quality test





