Product Description

Core Structure of a Flap Mould

A traditional compression mould for flaps typically consists of three parts:

• Top plate: Usually rectangular or ring-shaped, with a recess matching the flap profile on its lower side.
• Middle plate (core ring): A critical component; it is a ring that determines the inner shape and diameter of the flap.
• Bottom plate: Corresponds to the top plate, with a ring-shaped groove on its upper side to hold the rubber compound.

Technical Advantages of Modern Flap Moulds

• Dual-compound flap production: By improving the mould structure, the top and bottom plates can press simultaneously, allowing two different rubber compounds to flow in a controlled manner. This produces a dual-layer or dual-density flap — for example, a wear-resistant bottom layer combined with a softer top layer that is gentler on the inner tube.
• Easy demolding: Some modern moulds feature a threaded ejection mechanism at the bottom. After curing, simply turning the ejector screw pushes the flap smoothly out of the mould, eliminating the need for prying. This saves labor and protects both the product and the mould.
• Injection molding process: Compared to traditional compression molding, injection moulds offer more precise control over temperature (e.g., 170–190°C), injection speed, and pressure. This results in more stable dimensions, uniform density, and higher automation — ideal for mass production.

A flap mould is a specialized tool for producing the protective rubber ring (flap) that goes between an inner tube and the rim. The mould cavity gives the rubber its specific shape (thicker in the middle, thinner at the edges, with a valve hole), while the vulcanization or injection process gives the product its required physical properties.

Packing & Delivery

Manufacturing Capabilities

Our manufacturing facility is strategically located close to a major seaport and international airport, enjoying convenient transportation and a highly favorable geographical position.

We specialize in manufacturing automatic hydraulic integrated vulcanizing molding machines, frames for automatic dual-tire curing machines, and high-quality tire molds, including radial tire molds, motorcycle tire molds, light-truck and heavy-truck tire molds, high-speed tire molds, semi-steel tire molds, solid tire molds, large-scale engineering tire molds, bladder molds, and other related products.

Covering an area of 5,000 square meters with total assets of over RMB 10 million, our plant operates with 106 employees, including 25 professional and technical personnel and 7 senior technical specialists. Our complete technical team guarantees the R&D of new technologies and products as well as continuous service improvement.

We drive corporate development through technological innovation and product upgrading. Adopting full-CNC machining technology, we strictly control product quality. Certified as a Credit-worthy Contract-Abiding Enterprise for years, our products are widely exported to Europe, Russia, the Middle East, Africa, Southeast Asia, and other regions globally. We consistently adhere to the principles of quality first, reputation first, reasonable prices, and excellent service, welcoming global partners to negotiate business and seek successful cooperation.

Frequently Asked Questions