Standard models cannot cover every working condition: irregular workpieces, deep-cavity fastening, multi-face fastening, very small screws, cleanliness requirements or special takt times often call for a custom automatic screw machine. This article sets out the complete customisation process to help companies avoid detours.

1. Requirement discussion: describe the working condition clearly

Before the project starts, clarify the workpiece material and dimensions, the screw specification (M1.0-M6.0) and quantity, hole position layout and tolerance, takt requirements (fastening time per piece and daily capacity), feeding preference (blow or vacuum pick), line format (in-line, off-line or standalone), and whether there are special requirements such as cleanliness, explosion protection or MES integration.

Providing a physical workpiece or a 3D drawing greatly improves the accuracy of the assessment.

2. Feasibility assessment

The manufacturer judges the feeding method from the screw length-to-diameter ratio (a high ratio favours vacuum pick, a low ratio favours blow feeding), decides whether CCD vision positioning is needed according to hole position tolerance, and decides whether a multi-axis or multi-station structure is required according to the takt. At this stage a preliminary solution and a price range are normally issued.

3. Solution design

The design stage fixes the machine structure (desktop, vertical or in-line), the number of axes and stroke, the feeding system (vibratory bowl, rotary table or magazine), the fastening mechanism (single head, multiple heads or servo screwdriver), the positioning method (fixture or vision), and the control system and data interface. Takt simulation and interference checks are carried out at the same time.

4. Sample testing: the most critical validation step

The customer sends real workpieces and screws, and the manufacturer uses a sample machine or a trial fixture to carry out actual fastening validation, producing a report on fastening results, torque data, yield and takt. Only after the sample passes does batch manufacturing begin, which significantly reduces project risk.

5. Manufacturing and commissioning

This covers machining, assembly, programming, trial running and process parameter calibration. During this stage the first-article inspection standard must be agreed with the customer and operator training completed.

6. Acceptance and delivery

Acceptance is carried out against the agreed takt, yield and torque consistency indicators, and the delivery includes the equipment, operating manual, wearing parts list and after-sales plan. A reputable manufacturer will also provide a response mechanism within the warranty period and spare parts supply.

Honred Technology: customisation capability from a source manufacturer

Honred Technology works in depth in non-standard automated assembly and has a complete chain from structural design, feeding system customisation and vision positioning to whole-machine assembly and commissioning. It supports sample testing and process validation and has delivered many custom fastening solutions for customers in 3C electronics, automotive electronics, new energy, LED display and home appliances. Direct supply from the manufacturer makes lead times and costs more controllable.

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