Adjustable Hand Levers, Screw Knob | Elevate Functionality with High-Performance Plastic Knobs for Various Applications

UJEN: Expert Team Introduction | Durable adjustable handles for equipment | UJEN

UJEN: Expert Team Introduction

Company Structure

Adjustable Hand Levers, Screw Knob

Homepage Introduction

UJEN, composed of a top-tier team dedicated to the development of tool free screws, addresses the problems of traditional screws, such as time consumption, labor intensiveness, and production inefficiency. At UJEN, we are committed to delivering excellent clamping knob screws quality and customer service. Through our continuous spirit of innovation and advancement in technology, we ensure that every Handle screw, from design to manufacturing, meets the strictest standards, fulfilling your professional needs.


Founder - Yan-Long Chen

Mr. Yan-Long Chen, the founder of UJEN, leads the company at the forefront of innovation with his unique insights and relentless pursuit of excellence in knob screws. With over forty years of experience in plastic product design, precision mold manufacturing, and the integration of different materials, his leadership style is both firm and open, encouraging the team to think innovatively and integrate this mindset into every aspect of our products and services. Mr. Chen consistently emphasizes that quality and innovation are the cornerstone of the company's competitive advantage, committed to technological innovation and strict quality management to ensure that UJEN’s plastic head screws achieve top levels in functionality, durability, and user experience.

President - Max Chen

As the President of UJEN, Mr. Max Chen has a deep understanding of the market demand and technical innovation for hand konb screws and other hardware accessories. He leads the team in continuously refining production processes and quality control, ensuring that each knob screw nut performs optimally. With extensive experience in R&D innovation and technology integration, he knows how to effectively utilize various resources to bring comprehensive solutions to customers. By leveraging his experience, he also encourages the team to think innovatively and continue learning and developing. The President firmly believes that only by maintaining the highest quality of thumb screws and offering the best service can the company win the long-term trust and loyalty of customers.

Mold Unit

The Mold Unit at UJEN is the fortress of quality for handle screws. This team, with its profound professional knowledge and extensive experience, focuses on developing and manufacturing high-precision molds, ensuring that every detail of the produced tightening knob screws meets the highest standards. The efforts of the Mold Unit guarantee that UJEN’s screw handles are not only forward-thinking in design but also precise in manufacturing, meeting customers’ expectations for high-quality handle nut screws.

R&D Unit

The R&D Unit at UJEN is dedicated to the innovation and technological advancement of clamping knob screws. Through continuous research and development, our team of engineers and designers have launched several innovative adjustable screws and spring plungers, not only speeding up customer operations but also enhancing user experience. The R&D Unit constantly seeks technological breakthroughs to ensure that our products can meet the needs of future industrial development, offering competitive solutions to customers.

Quality Control Unit

UJEN’s Quality Control Unit upholds the commitment to the quality of handle nut screws. By implementing the industry's strictest quality control standards and rigorous attitudes, we ensure that every step from raw materials to finished products meets the highest quality requirements. The professional work of the Quality Control Unit ensures that every tool-free nut screw can provide optimal performance in the usage environment, thereby helping customers achieve efficient and safe production goals.

Sales Unit

The Sales Unit at UJEN plays a key role in the industrial application of star knob screws. Based on their professional knowledge of knob nut screws and market insights, they build a bridge of trust with customers, providing them with the most suitable tool-free screw solutions. The efforts of the Sales Team enable UJEN to closely monitor market trends, adjust strategies timely, and ensure that every solution offered meets the specific needs of customers.


Company Structure | Maximize Precision with Top-Quality Hand Screws for Industrial Use

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality hand screws, knob screws, adjustable handles, grip knobs, and indexing plungers. Their commitment to customization and precision ensures each component, from hand screws to indexing plungers, meets rigorous standards. This dedication positions UJEN as a leader in supplying durable and reliable industrial components to global markets.

UJEN Development Co., Ltd. is a leading manufacturer of precision-engineered hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers for a variety of industrial needs. Our 45-year legacy, combined with ISO 9001:2015 certification, underscores our commitment to quality, innovation, and customer satisfaction. Specializing in custom solutions, we excel in professional moldmaking, enhancing equipment functionality across industries.

UJEN has been offering customers high-quality hand screws for industrial machinery since 1994, both with advanced technology and 47 years of experiences, UJEN ensures each customer's demands are met.