In 2010 KST set up a second plastic ejection plant to expand the design and development of our own injection molds for plastic products production. In addition to a comprehensive line of nylon cable ties, KST also manufactures insulated plastic connector sleeves, home appliance connectors, automotive connectors, green energy connectors, EV charging connectors, carbon insert injection molding, metal insert molding, cable wire insert molding, and other plastic injection mold products. At present, we have 29 plastic injection machine lines with an annual output of approximately 300 million pieces.

Research and development

KST injection mold and cable tie product factory has an independent research team and a well-equipped laboratory that supports integrated capabilities for material analysis, product design, mold prototype design, mold processing, injection trial production, independent design capabilities, research and development team mentoring, as well as a fully equipped laboratory for verification and testing, that is also UL independent laboratory certified.

Materials & Equipment

Plastic products are produced using quality engineered plastics and plastic injection materials from premium suppliers. In addition, we have invested in precision plastic extrusion and injection machines imported from Japan and Europe, ensuring the stability of production and quality.

Process

From injection mold production, continuous reel product production, carbon embedded injection production, all of our product lines have achieved a high degree of automation including 2.5D CCD quality inspection equipment, and undergo prescribed industry-standard environmental, strength, material, and electrical testing processes.

When a metal, plastic, or ceramic part needs to be embedded in plastic to improve product structure it is called Insert Plastic Injection Molding (IM). It is a unique process and one that K.S. TERMINALS INC. specializes in.

With IM, a part is placed in a mold cavity. Selected plastic material is injected directly around it resulting in a single part, with the insert(s) embedded in the plastic material. This process normally uses engineered plastics for improved durability, tensile strength, and weight reduction.

IM can be a highly efficient and simple alternative when compared to the assembly of individual parts using soldering, connectors, fasteners, or adhesives. It also leverages plastic capabilities and can reduce finished product costs by reducing the amount of expensive metal needed to create a part. Critical to this process, because we can use a standard single-shot injection machine for IM, tooling costs are lower than with a multi-shot process.

IM bonds numerous components together with thermoplastic. A benefit of this process, when coupled with automation, is reduced assembly and labor costs. For example, a stamped metal insert can be used to create a perforated IM part, which effectively creates an insulated multi-path circuit.

IM can be used to eliminate fasteners and connectors. By introducing the bonded strength of resin and metal inserts, IM yields smaller, lighter, more durable components.

Engineers welcome the flexibility and possibilities that IM provides. For example, a complex stamped metal or formed part can be used in IM. The external resin provides insulation while the internal metal part provides a dedicated multi-path electric circuit.

IM components reduce the possibility for parts to loosen, become misaligned and/or become electrically disconnected. An overall benefit of thermoplastic resin is improved shock and vibration durability.

Materials:

Inserted metals including frame die castings, plated copper pins, sockets, and wire embedded into Engineering plastic or Thermo Plastic Rubber (TPR).

Liquid injection molding (LIM) utilizes liquid silicone rubber (LSR) or similar elastomeric material and is the preferred process for manufacturing solid silicone rubber products for its excellent durability and flexibility characteristics. Some of the common products produced by LIM are:

• Seals and sealing membranes
• Electrical and electronic components, such as connectors and cables
• Medical and sterile devices
• Kitchen goods
• Watersports
• Gas masks
• Military Gear
• Waterproof device cases
• Infant care products

Due to Liquid Silicone Rubber characteristics (LSR), liquid injection molding requires a streamlined and consistent mechanical mixing process rather than a labor-intensive one. The closed-loop process leverages a pump and mixing unit to mix and dispense the liquid material into a molding press. Once the curing stage is complete, the press opens, and the product is manually or robotically removed.

Liquid injection molding is one of the most cost-effective and versatile manufacturing methods currently available. It can be applied towards any industry or market, including:

• Aerospace and aviation
• Automotive
• Electronics
• Food and beverage
• Medical and dental

Materials

Shin Etsu / Dow Corning/ GE Silicones