EVA, PVC, Rubber & TR Shoe Mould Manufacturing

Located in Jinjiang City, Fujian Province — known locally as a centre of shoemaking — Quanzhou Xieli Mould Co., Ltd. is dedicated to designing, researching and developing high quality shoes moulds. The company maintains more than 10 testing machines used to evaluate EVA, PVC, rubber, TR and Phylon moulds before they reach customers.

The product range covers a broad span of shoe production needs, from upper moulds to outsole and boot moulds, supporting manufacturers who require consistent material-specific mould engineering.

Mould design begins long before metal is cut. At Xieli, each project starts with a close reading of the footwear component to be produced, whether it is an EVA midsole, a PVC outsole, or a rubber boot shell. The engineering team studies the required material behaviour under heat and pressure, mapping how the compound will flow, cure, and release from the cavity. This early-stage planning determines gate placement, venting paths, and parting line geometry, all of which influence cycle time and part consistency on the production floor.

EVA injection moulds demand a careful balance of temperature control and cavity pressure. Because ethylene-vinyl acetate expands during foaming and then sets into a resilient, lightweight structure, the mould must accommodate that volume change without creating surface defects or density variations. Cooling channel layout, clamp force calculations, and material shrinkage allowances are all factored into the tooling design. The result is a mould that delivers uniform cell structure and dimensional stability across thousands of cycles.

PVC and rubber moulds present a different set of requirements. These materials cure at higher temperatures and can leave deposits on cavity surfaces over extended runs. Tooling for such compounds is built from steels selected for corrosion resistance and ease of cleaning. Surface treatments and regular maintenance protocols help prevent carbon build-up, preserving the crisp definition of tread patterns, logos, and fine texture details that outsole manufacturers rely on for both performance and appearance.

Phylon moulds occupy a specialised niche in sports and casual footwear. The two-stage process — first pressing an EVA sheet, then expanding it in a heated mould — requires tooling that can handle secondary foaming without distortion. Venting is particularly critical, as trapped gas can produce surface blemishes or incomplete fills. Precision-machined cavities and consistent wall thicknesses ensure that each Phylon midsole emerges with the specified rebound, compression set, and weight characteristics.

Testing is embedded in the manufacturing workflow. Before any mould leaves the facility, it undergoes evaluation on one of the more than ten dedicated testing machines. These trials replicate real production conditions — cycling temperatures, injection pressures, and material batches — to verify that the tool performs as designed. Any inconsistency in fill, release, or part quality is addressed at this stage, giving footwear manufacturers confidence that the mould will integrate smoothly into their existing production lines.

The machining infrastructure behind each mould includes imported CNC processing centres that operate with the precision demanded by complex sole geometries. Multi-axis capabilities allow the cutting of undercuts, intricate tread blocks, and blended sidewall contours in a single setup, reducing cumulative tolerance errors. This level of automation, combined with skilled manual finishing, produces cavity surfaces that require minimal post-processing and deliver repeatable results from the very first shot.

Beyond individual moulds, the company supports a full spectrum of footwear tooling categories. Upper moulds, outsole moulds, boot moulds, and strap-forming tools are all produced under the same roof, giving manufacturers a single point of coordination for projects that span multiple component types. This breadth means that material-specific expertise — whether for EVA, PVC, rubber, or TR compounds — is applied consistently, helping brands maintain coherent quality across an entire shoe collection.

Industrial reliability rests on more than machining accuracy. It depends on a working culture that treats each mould as a long-term production asset rather than a one-time purchase. Attention to steel selection, heat treatment, surface finishing, and ongoing technical support reflects an understanding that footwear manufacturing runs on tight schedules where tooling downtime carries real cost. Keeping moulds in service and producing clean, dimensionally stable parts is the practical outcome of that engineering mindset.