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In precision manufacturing industries such as 3C electronics, medical devices, smart wearables, and automotive electronics, the automated assembly of micro-diameter screws (e.g., M0.8 to M2.0) has long been a major pain point on production lines. Manual operations suffer from low efficiency and poor consistency, often leading to issues like stripped threads, inaccurate torque, and damage to workpieces—directly resulting in reduced product yield and increased costs.

How to overcome this bottleneck? An efficient and stable automated feeding and tightening solution for micro-screws has become an essential choice for modern electronics manufacturers.

I. Challenges:

Compared to standard screws, micro-screws present unique technical challenges in automated handling:

• Poor Feeding Stability: Due to their small size and light weight, micro-screws are prone to standing upright, flipping, or jamming during feeding, causing supply interruptions.

• Difficult Pose Adjustment: Ensuring every tiny screw is delivered to the screwdriver bit in a consistent and correct orientation is a core challenge for feeding systems.

• High Feeder Requirements: Traditional vibratory bowls may cause screws to splash, flip, or misalign due to improper vibration frequency.

• High Tightening Precision: Micro-screws have a very small torque range, imposing strict requirements on torque control, rotational speed, and pressing accuracy.

II. Solution:

• Danikor Disc Feeder: Designed specifically for micro-screws, it uses a motor-driven paddle-wheel feeding mechanism to continuously deliver screws to the top of a rotary disk. A vacuum generator beneath the disk creates negative pressure to adsorb screws for feeding. The system optimizes track design, vibration frequency, and electromagnetic control to ensure screws are delivered neatly and in the correct orientation—achieving zero jamming.

• Danikor Automatic Screwdriver: Features a vacuum suction-based tightening solution, perfectly solving the challenge of handling non-magnetic screws. By precisely controlling vacuum pressure, it ensures stable pickup, reliable carrying, and accurate release. Driven by a servo motor, it precisely controls pressing depth, rotational speed, and final tightening torque. The system monitors torque curves in real time, detecting and alerting defects such as stripped threads or floating screws—ensuring every screw meets process standards.

In an era where 3C electronics are increasingly pursuing thinner, lighter, and more precise designs, the assembly quality of a single micro-screw directly impacts product reliability and brand reputation. As precision manufacturing advances toward Industry 4.0, details determine success or failure. Danikor’s micro-screw automated feeding and tightening solution is precisely designed to conquer these “tiny” yet critical challenges.