INTEGRATED SOLE ENGINEERING
EVA SPONGE & RUBBER COMPOUND

We are proudly certified by ISCC PLUS, a global standard for sustainability. This certification highlights our unwavering commitment to eco-friendly innovation, responsible production, and a sustainable future, Established in 2010, Kumkang Tech Indonesia is your trusted one-stop partner for complete bottom sole solutions in the footwear industry. From PBPD compounds to stock fitting, we provide a full range of high-quality components designed to meet every aspect of shoe production. Our dedication to innovation and customer satisfaction sets us apart as a leader in footwear technology.

OUR DEPARTEMENT AND MACHINE

PELLETIZING MACHINE

Pelletizing is a process that involves transforming materials, typically in powder or granular form, into small spherical or cylindrical pellets. This process is widely used across various industries to create materials that are easier to handle, store, and utilize.

MATERIAL

A material compound department handles the creation, testing, and blending of chemical or polymer formulas. It typically focuses on research and development, quality control, and custom material manufacturing. Key Functions: Material Testing and Checking physical and chemical properties, Formula Development Mixing custom resins, plastics, or composites. Quality Assurance: Making sure production batches match industrial safety and quality rules.

IP MACHINE

The injection phylon (IP) is created by injecting compressed EVA into a mold, which allows for lightweight, flexible and resilient cushioning. Forming with a higher density compound enables phylon to be used as a midsole, outsole and sandal.

CMP MACHINE

A CMP machine refers to industrial footwear manufacturing equipment used to produce high-quality, lightweight shoe midsoles and outsoles via the Compression Molding Phylon (CMP) process. Unlike direct injection molding, the CMP process relies on a multi-stage thermal cycle where pre-foamed Ethylene-Vinyl Acetate (EVA) compound is heated and then rapidly cooled under high hydraulic pressure to form dense, uniform, and shock-absorbing soles.

BUFFING

Buffing an outsole is an essential shoe-making and repair process that involves lightly sanding or roughening the bonding surface. It opens material pores, removes old glue or release agents, and creates maximum grip for strong adhesive bonding.

PRESS PHYLON

A shoe bottom made from heated and compressed EVA foam using a hot-cold mold press machine. It features ultra-lightweight construction, great shock absorption, and high flexibility.

FINISHING

Finishing outsole manufacture involves trimming excess material, surface texturing, and applying final colors or coatings to ready the sole for assembly. The core steps include trimming, buffing, and coloring.

MOULDING

Shoe outsole manufacturing via molding involves creating precision metal tooling (molds) and using them to shape polymers like rubber, EVA, TPU, or PVC through heat, pressure, and injection. Key phases include mold design, material processing, and cooling stabilization.

WAREHOUSE

Handles the safe and accurate transfer of outbound goods onto transport vehicles, focusing on: cargo verification, weight distribution, and dock safety management.

QA

The Quality Assurance (QA) department ensures that products and services meet set standards and rules. Its main tasks include building quality processes, checking systems, and stopping errors before they happen.