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The 128 Core Inner Tube ST204 serves as a foundational component designed to elevate the structural integrity and user experience of demanding gear. Engineered with exact precision, this core tube delivers a firm yet slightly yielding tactile feel, offering a matte, anti-slip surface that remains comfortable even during prolonged handling. Manufactured from premium Thermoplastic Rubber (TPR), the material is completely odorless and meets stringent international environmental and safety compliance standards. This ensures that all finished luggage and outdoor gear utilizing this core are fully compliant for global export markets.
For procurement teams seeking reliable hardware components, this inner tube presents an optimal balance of flexibility and rigidity. The carefully formulated TPR compound resists environmental degradation, maintaining its structural properties across fluctuating temperatures. Below are the exact technical parameters defining this component:
| Model | ST204 |
| Material | TPR |
| Product specifications | 130×∅22.5mm |
| Modifiers | anti slip, practical, sturdy, wear-resistant, precise, high-quality, portable, adaptable, durable |
The primary application of the ST204 model revolves around internal structural support and acting as a critical connection part for various equipment and luggage systems. When integrated into a product's framework, it plays a definitive role in enhancing overall structural stability and ensuring component connection reliability. Manufacturers rely on this tube to prevent fabric sagging and to maintain the intended shape of soft-sided carriers under heavy loads.
Furthermore, it is exceptionally effective when utilized as an inner core component for hand grips. Inserting this tube into webbing or fabric handles instantly improves grip comfort and stability for the end user. The precise tubular design allows for rapid integration with surrounding textile components, significantly boosting assembly line efficiency. By standardizing the handle core, production facilities can reduce manual adjustments, ensuring every finished bag or tool offers the same consistent, ergonomic hold.
At its core, this component delivers a specialized internal structural support function. By distributing weight evenly across its 130mm length, it can substantially enhance the structural stability of heavy-duty equipment and travel luggage. The TPR material absorbs micro-vibrations and impacts, translating to a smoother carrying experience that minimizes user fatigue during transit.
When deployed specifically as a grip core, the tube functions to improve the comfort and stability of the hand grip. It is engineered to withstand significant tension and pressure, having passed rigorous tensile and compression testing protocols. This ensures that even under extreme outdoor conditions or heavy payload scenarios, the core will not crack, collapse, or deform. It consistently ensures the reliability of component connections, acting as a dependable anchor point that holds webbing and outer fabrics securely in place without causing friction wear on the textiles.
Choosing the ST204 inner tube brings multiple operational and product-level benefits to manufacturing partners, supported by strong factory manufacturing and R&D capabilities that guarantee stable delivery times for large-volume orders.
Precise Size Specifications: The exact 130×∅22.5mm dimensions offer strong adaptability, meeting the structural or gripping needs of various scenarios without requiring custom tooling.
Exceptional Durability: The TPR material is highly wear-resistant and durable, demonstrating excellent resistance to deformation and wear, which guarantees a long service life even in harsh environments.
Enhanced User Experience: A precise structural design can effectively enhance structural stability or the grip experience when used as an inner core, providing a firm, anti-slip hold.
Practical Installation: It is easy to install and can quickly integrate with surrounding components, offering strong practicality and reducing labor time on the assembly floor.
Customization Services: Comprehensive OEM/ODM services are available. Clients can request specific colors, tailored dimensions, and custom brand logos to meet the personalized requirements of distinct industry sectors.
One-Stop Procurement: Beyond the inner tube itself, a complete range of matching plastic hardware for luggage and outdoor gear is available, effectively lowering supply chain management and communication costs.
The versatility of the ST204 makes it widely used in various industries that require dependable internal support or ergonomic grip cores. Its adaptable nature allows it to serve multiple sectors efficiently.
In the production of travel gear, this tube acts as the primary internal structural support and grip core of luggage. It gives duffel bags, suitcases, and heavy-duty backpacks the necessary rigidity at handling points, ensuring the fabric does not pinch the user's hand under heavy loads.
For tactical and recreational gear, it provides essential structural connection and support of outdoor equipment. Whether integrated into tent carry bags, kayak handles, or climbing gear storage, the weather-resistant TPR maintains its integrity through rain, UV exposure, and freezing temperatures.
Industrial applications frequently utilize this component for the internal support and grip core of tool equipment. It provides a non-slip, shock-absorbing interface for heavy tool bags and equipment cases, protecting the user's hands from the harsh vibrations and weight of metal hardware.
The main body is a tubular inner core structure, which is intentionally compact in structure to minimize added weight while maximizing physical support. The 128-core design philosophy ensures that the internal geometry distributes applied forces evenly across the entire cylinder. This prevents localized collapsing or pinching when the tube is subjected to a tight grip or heavy suspension.
Through the direct combination of the inner core and the webbing, it achieves the function of internal structural support or a comfortable grip. The exterior surface features a specialized texture that creates a high-friction bond with surrounding fabrics, preventing the tube from shifting or rotating inside the handle casing. By maintaining this precise alignment, the structure ensures the stability of component connection and overall structural integrity, resulting in a finished product that feels solid, reliable, and expertly crafted for long-term deployment.
