UJEN DEVELOPMENT CO., LTD.

High-quality manufacturer of hand screws, knob screws, and adjustable handles, focusing on customization and ISO 9001 certified quality.

Circular Design for Hardware Components Too

Circular Design

UJEN’s Sustainability Commitment Through Design

Circular Design is at the core of UJEN’s sustainability commitment. As a Taiwan-based manufacturer of handle screws, knob screws, clamping handles, and precision fastening components, we believe sustainability should be embedded into product design, material selection, and user experience—not treated as a slogan.


Through Circular Design, UJEN focuses on extending product life cycles, regenerating material value, and maintaining design transparency. This approach ensures that functionality, aesthetics, and environmental responsibility progress together, supporting long-term value creation for our customers and global partners.

Circular Design as a Core Practice

At UJEN, Circular Design is not an isolated initiative or a single product feature. It is a systemic design philosophy applied throughout our development process. From early concept stages to material selection and user interaction, we continuously consider how resources can be reused, products can last longer, and information can remain transparent across the entire lifecycle.

Material Circulation

By introducing recycled content and waste-regeneration technologies into production, UJEN brings materials that would otherwise be discarded back into the cycle of use. Material circulation is not only about reducing waste, but about restoring value to resources and minimizing environmental burden through responsible manufacturing decisions.

Design for Durability

UJEN believes that truly sustainable products must be resilient and long-lasting. Rather than being consumed quickly, our fastening components are designed to accompany users over extended periods. Structural integrity, material selection, modularity, and repairability are all considered to ensure that the full value of resources is realized throughout a product’s lifespan.

Design Transparency

Every design element should serve a clear purpose. UJEN emphasizes transparency in design so that functions and intentions are easy to understand, and products can be more effectively recycled or reprocessed after use. Transparency allows sustainability to move beyond abstract concepts and become actionable throughout the product lifecycle.

Aligned with Global Circular Economy Frameworks

UJEN’s Circular Design principles align with internationally recognized circular economy frameworks, including the Ellen MacArthur Foundation’s vision to eliminate waste, keep materials in use, and regenerate natural systems. For UJEN, Circular Design is a long-term commitment applied across products, packaging, and everyday operational details.

A Systemic Approach Beyond Products

Circular Design extends beyond fastening components. From packaging materials and protective cushioning to promotional items and logistics choices, UJEN applies the same sustainability mindset across every detail. This holistic approach ensures consistency and credibility in how environmental responsibility is practiced throughout the organization.

Circular Design|Waste Reborn, Everyday Renewed

Circular Design represents UJEN’s commitment to the future and our direction forward with global partners. By embedding sustainability into design decisions today, we aim to create products and systems that continue to deliver value while respecting environmental boundaries.

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Circular Design Coasters

Sustainability does not begin in reports or slogans—it begins in everyday moments. Circular Design Coasters are UJEN’s tangible expression of sustainability,...

Circular Design in Packaging

Packaging is often treated as a logistics detail. At UJEN, we treat it as part of circular design.From adhesive tapes to cushioning layers and individual...

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Secure Positioning with Robust Indexing Plungers for Accurate Component Placement

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.