Factory Overview

Integrated ISO Terminal & Connector Manufacturer

50+ Years of Excellence, 30,000+ Products, and Worldwide Reach

KST is a globally recognized manufacturer of electrical terminals and automotive connectors, proudly holding both ISO and IATF 16949 certifications. With over five decades of experience, KST has established itself as a premier supplier of cold-pressed electrical terminals. Our success stems from our expertise in stamping and injection mold design, engineering, quality assurance, and production processes. This has allowed us to expand our product range to over 30,000 offerings, encompassing electric terminals, automotive connectors, solar PV connectors, and EV charging connectors. This page provides a factory overview.

ISO 17025 and UL Independent Testing Lab

Situated in Changhua, Taiwan, our headquarters and main factories serve as the hub of KST’s operations. Within this location, we maintain a fully certified ISO 17025 Quality Assurance Laboratory, which has been an authorized UL Independent Testing Lab (ITL) since 2003. As part of our commitment to global expansion, we have manufacturing facilities in Taiwan and China and are expanding manufacturing capabilities into Thailand. Furthermore, KST operates warehouses and sales offices in the United States, Vietnam, Indonesia, and Thailand, enabling us to cater to a diverse range of markets. Our dedication to international outreach is exemplified by our exports to 150 countries worldwide.

Terminal & Connector Processes

Our Beginning and Core Technologies

K.S Terminals Inc. stands as a prominent global leader in the manufacturing of cold-pressed electrical terminals. Since its establishment in Changhua, Taiwan in 1973, the company has harnessed cutting-edge technologies such as high-precision mold design, stamping, and injection molding to solidify its position in the industry.

In a significant milestone, KST became a publicly listed company on the Taiwan stock market in 2002. The company’s unwavering commitment to core business values has fostered sustainability and propelled KST to cultivate enduring partnerships with like-minded organizations dedicated to quality and research & development. Currently, KST operates two factories in Taiwan and an additional facility in Suzhou, China. Manufacturing in Thailand will be coming online soon.

Taiwan Headquarters

KST’s Zhangbin factory and headquarters, founded in 1988 within the Changhua Binhai Industrial Zone, serve as the primary production hub for the company. This facility plays a crucial role in the manufacturing of our diverse electrical terminal and connector product lines. With a range of manufacturing processes at hand, including continuous stamping, welding, electroplating, assembly packaging, and warehousing, KST leverages various degrees of automation. Moreover, we boast a dedicated mold processing center that collaborates closely with customers to design and develop tailored product tooling solutions.

Agile Equipment Integrated by Automation Team

Our automation engineering team excels in designing and manufacturing a diverse range of cutting-edge automation equipment. We specialize in developing automated systems for various tasks, including automatic feeding, assembly, machine vision inspection, counting, and packaging. By utilizing our advanced technologies, we ensure consistent product quality and quantity. Our equipment and processes can be swiftly integrated and configured to meet a wide range of product requirements, allowing us to expedite production and shipping, thereby meeting the demanding delivery schedules of our valued customers.

30000+ Terminal & Connector Products Certified for Global Markets

As a highly productive factory, we are renowned for our production and distribution of connectors. Our offerings span from large wire terminals used in power transmission to certified EV Charging connectors tailored for specific markets worldwide. With an annual production and shipment volume exceeding 3.8 billion units, we proudly offer over 30,000 unique connector types. This extensive product range exemplifies our unwavering dedication to meeting the diverse needs of our global customer base.

50+ years of experience and ISO 17025

Having 50 years of industry experience, our team consistently pushes the boundaries of production technology to deliver exceptional results. We take pride in maintaining ISO 17025-certified quality assurance laboratories, which are also UL-certified independent testing facilities. These measures are in place to ensure the highest standards of quality and safety for our products. Consequently, our KST brand has earned global recognition as a leader in the terminal and connector market. We remain committed to surpassing customer expectations in terms of product performance and reliability, cementing our reputation for excellence.

Nylon Cable Production Process

Nylon Cable Tie Production Processes

KST Injection Mold and Cable Tie Product Factory feature an exceptional research team and a state-of-the-art laboratory that provides comprehensive support for material analysis, product design, mold prototype design, mold processing, and injection trial production. Our facility is equipped with cutting-edge technology to ensure independent design capabilities, facilitate research and development team mentoring, and provide thorough verification and testing. It is worth noting that our laboratory has obtained the prestigious UL certification, signifying its status as an independent laboratory.

Comprehensive Range of Nylon Cable Tie Products

Since its inception in 2008, KST has been dedicated to the development of its cable tie product line. By 2010, KST had successfully established a manufacturing facility exclusively for nylon cable ties. At present, our company proudly manufactures a wide range of nylon cable ties, including Mounting, Releasable, Heavy Duty, Markable, Plug, Push, Releasable Push Mount Cable Ties, as well as Weather-resistant UV Cable Ties. Our commitment to quality and innovation remains unwavering.

Premium Materials Ensures Durability

At our facility, we utilize top-quality engineered plastics and plastic injection materials sourced from premium suppliers in the production of our plastic products. This commitment to using high-grade materials ensures the durability and performance of our offerings.

Leading Edge Machinery

Moreover, we have made significant investments in precision plastic extrusion and injection machines imported from renowned manufacturers in Japan and Europe. This strategic decision guarantees the stability of our production processes and upholds the highest standards of quality. Additionally, our highly automated production line enhances our capacity, enabling us to efficiently handle both large-scale orders and an increasing number of small orders without compromising customization.

In our manufacturing processes, we rely on PA66, a widely acclaimed material known for its exceptional mechanical strength, rigidity, and excellent stability under heat and chemical exposure. This choice ensures that our products meet the stringent requirements of industries where these properties are essential.

Machine Vision

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 vision inspection equipment, and undergo prescribed industry-standard environmental, strength, material, and electrical testing processes.

Features & Benefits

At our facility, we utilize top-quality engineered plastics and plastic injection materials sourced from premium suppliers in the production of our plastic products. This commitment to using high-grade materials ensures the durability and performance of our offerings.

Moreover, we have made significant investments in precision plastic extrusion and injection machines imported from renowned manufacturers in Japan and Europe. This strategic decision guarantees the stability of our production processes and upholds the highest standards of quality. Additionally, our highly automated production line enhances our capacity, enabling us to efficiently handle both large-scale orders and an increasing number of small orders without compromising customization.

In our manufacturing processes, we rely on PA66, a widely acclaimed material known for its exceptional mechanical strength, rigidity, and excellent stability under heat and chemical exposure. This choice ensures that our products meet the stringent requirements of industries where these properties are essential.

  • Standard colors: Natural, black, grey, red, blue, yellow, green, orange, brown, purple, florescent yellow.
  • Certified: DNV, ABS, UL, ROHS
  • Material: PA66 (Nylon)
  • Flammability Rating: UL 94V-2
  • Max. operating temperature up to 120℃

Plastic Injection Molding Processes

Plastic Injection Molding Plant Expansion

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.

plastic-injection

Injection Mold Independent R&D and Laboratory

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 from Premium Sources

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.

Machine Vision Inspection

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

Features & Benefits:

Regardless of the industry, OEMs opt for the benefits of plastic injection molding. It’s is known for being able to produce consistent, affordable, complex products of high quality that can withstand any environment.

  • High Efficiency – Fast Production
  • Complex Part Design
  • Enhanced Strength
  • Increased flexibility – Material and Color
  • Reduced Waste
  • Can opt to use multiple types of plastics(overmold)
  • Product Development Timeline
  • High-Output Production and Consistency
  • Reduced weight

Insert Molding (IM)

Embedded Metal / Ceramic

Insert Plastic Injection Molding (IM) is a specialized process offered by KST. It involves embedding metal, plastic, or ceramic parts within plastic to enhance the structure of a product.

During IM, the desired part is carefully positioned within a mold cavity. The chosen plastic material is then injected directly around the part, resulting in a unified component with the insert(s) securely embedded in the plastic. Engineered plastics are typically used in this process to improve durability, tensile strength, and achieve weight reduction.

Provides Path to Cost Reduction

IM presents an efficient and straightforward alternative to assembling individual parts using soldering, connectors, fasteners, or adhesives. By leveraging the capabilities of plastic, it also enables cost reduction by minimizing the amount of expensive metal required to manufacture a part. A key advantage of this process is that it can be performed using a standard single-shot injection machine, leading to lower tooling costs compared to multi-shot processes.

Reduces Assembly and Labor Costs

The process of Injection Molding (IM) offers the advantage of securely bonding multiple components together using thermoplastic materials. When combined with automation, this process significantly reduces assembly and labor costs. An excellent example of this is the utilization of a stamped metal insert to create a perforated IM part, effectively generating an insulated multi-path circuit.

IM provides the opportunity to eliminate the need for fasteners and connectors. By harnessing the bonding strength of resin and metal inserts, IM enables the production of smaller, lighter, and more durable components.

Integration of Complex Parts

Engineers highly appreciate the flexibility and possibilities afforded by IM. It allows for the integration of complex stamped metal or formed parts. The external resin layer provides insulation, while the internal metal component creates a dedicated multi-path electric circuit.

IM components greatly reduce the likelihood of parts loosening, misalignment, or electrical disconnection. Moreover, the use of thermoplastic resin enhances the shock and vibration durability of the materials.

Insertion of Materials

IM involves the insertion of various metals, including frame die castings, plated copper pins, sockets, and wire embedded into engineering plastic or thermoplastic rubber (TPR).

Benefits

  • Lower assembly and labor costs
  • Reduced size and weight
  • Improved reliability
  • Increased engineering flexibility

Applications

  • TPR + Metal Frame (3C Mechanical Parts)
  • ABS + Aluminum Die Casting (Sports/ Medical Parts)
  • Engineering Plastic + Plated Pin + Wire (Electrical Connectors)
  • Engineering Plastic + Copper Pin/Contact (Precision Electronic Components)

Liquid Injection Molding (LIM) Processes

Solid Rubber/Silicone Products

Liquid Injection Molding (LIM) is a highly preferred manufacturing process for creating solid silicone rubber products, thanks to the outstanding durability and flexibility characteristics of liquid silicone rubber (LSR) or similar elastomeric materials. LIM enables the production of a wide range of products, including:

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

Precise Molding of Complex Shapes and Intricate Designs

The versatility of LIM allows for the precise molding of complex shapes and intricate designs, ensuring the desired functionality and performance of the end products. With its exceptional material properties, LIM delivers superior quality and reliability across various industries.

LIM leverages Liquid Silicone Rubber

Liquid injection molding utilizes the exceptional characteristics of Liquid Silicone Rubber (LSR), necessitating a streamlined and consistent mechanical mixing process instead of a labor-intensive one. This closed-loop process employs a pump and mixing unit to thoroughly blend and dispense the liquid material into a molding press. Following the curing stage, the press opens, and the product is either manually or robotically extracted.

Versatile and Cost-effective Manufacturing Process

Liquid injection molding stands out as one of the most versatile and cost-effective manufacturing methods available today. It finds application in a multitude of industries and markets, including:

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

Materials Sourcing

We source our LSR materials from trusted manufacturers such as Shin Etsu, Dow Corning, and GE Silicones. These reputable suppliers ensure the highest quality and performance of our liquid injection molded products.

Benefits

When implemented with precision, Liquid Injection Molding (LIM) consistently delivers high-quality molded components in large quantities. However, it is crucial to assess its suitability for each specific application. One key consideration is determining whether silicone is the optimal material choice. While silicone offers numerous advantages, it may not be ideal in certain circumstances.

It is essential to evaluate the environmental and chemical conditions the molded components will encounter. For instance, silicone can react unfavorably with pressurized steam at temperatures exceeding 150°C. This reaction can lead to the breakdown of the material’s siloxane polymer and the degradation of its essential properties.

To ensure the longevity and optimal performance of the molded components, it is important to explore alternative materials that can withstand the specific environmental and chemical conditions they will be exposed to. Conducting a comprehensive material analysis and consulting with experts can help identify the most suitable material for the intended application, guaranteeing the desired functionality and longevity of the molded components.

Liquid Injection Molding (LIM) offers several features and benefits that make it a preferred manufacturing method for various applications. Here are some key features and benefits of LIM.

  • LIM enables the production of highly precise and complex molded components. The liquid nature of the silicone rubber allows for intricate designs, fine details, and tight tolerances to be achieved, ensuring accurate replication of the mold.
  • LIM ensures consistent and repeatable results throughout the production process. The closed-loop system, with controlled mixing and dispensing, allows for uniform material distribution and precise shot control, resulting in consistent part quality.
  • Liquid Silicone Rubber (LSR) used in LIM exhibits excellent material properties, including high flexibility, durability, and resistance to extreme temperatures, UV radiation, chemicals, and aging. It also offers biocompatibility, making it suitable for medical and healthcare applications.
  • LIM enables overmolding, which involves encapsulating or bonding LSR with other materials, such as plastics or metals. This allows for the creation of multi-material components with enhanced functionality and improved aesthetics.
  • LIM is well-suited for high-volume production, as it enables fast cycle times and high-output manufacturing. This efficiency helps to optimize production costs and meet large-scale demand.
  • The high accuracy and precision of LIM often eliminate or minimize the need for additional post-molding operations, such as trimming or finishing, reducing overall production time and costs.
  • LIM offers design freedom, allowing for the creation of complex geometries, undercuts, thin walls, and intricate details that may be challenging or impossible with other molding processes. This opens up possibilities for innovative and unique product designs.
  • LIM ensures minimal variation between molded parts, resulting in consistent dimensions, surface finishes, and mechanical properties. This consistency is crucial for applications where uniformity and reliability are essential.

Overall, the features and benefits of LIM make it a versatile and effective manufacturing process, particularly for applications that require precision, durability, complex designs, and high-volume production.