| Bottle shape and material | Container shape, material, surface finish, and dimensional variation. | Round PET bottles, 55–85 mm in diameter, with minor variation between production lots. | Round bottles are commonly handled by wraparound systems. Tapered, oval, square, or unstable bottles may need additional guides, fixtures, or a different labeling method. |
| Label coverage | Number of labels per bottle, label position, coverage area, and required alignment. | One pressure-sensitive wraparound label; front-to-back gap of 2–4 mm. | Label size and placement affect applicator setup, bottle rotation, sensor configuration, and achievable positioning accuracy. |
| Label stock and format | Label material, liner, roll direction, roll dimensions, and print requirements. | Paper or film labels on a roll, supplied in the format required by the applicator. | Label stiffness, adhesive, liner, and roll dimensions influence dispensing reliability and changeover requirements. Confirm compatibility with the label supplier and equipment provider. |
| Production rate | Required good bottles per minute, average shift output, and peak demand. | Target of 60 bottles per minute, with capacity headroom for future demand. | Compare the required rate with demonstrated performance on the actual container and label. Allow for stoppages, changeovers, and upstream or downstream limits rather than relying only on a maximum rated speed. |
| Operating schedule | Shifts per day, operating days per week, run duration, and planned downtime. | One or two shifts per day, with scheduled cleaning and product changeovers. | Longer operating hours can make easy access, durable components, service support, and quick recovery from jams more important to total operating performance. |
| Product and bottle stability | Whether bottles are empty or filled, their weight, center of gravity, and sensitivity to pressure. | Filled bottles with a stable base and a closure that remains secure during handling. | Lightweight or top-heavy containers may tip or deform. Conveyors, side belts, guides, and application pressure should be tested with filled containers where applicable. |
| Changeover frequency | Number of bottle and label formats, and how often production switches between them. | Four bottle formats and several label designs, with multiple changeovers per week. | Frequent changes favor clear adjustment references, recipe storage, tool-free adjustments where practical, and accessible change parts. Include changeover time in the production plan. |
| Inspection and rejection | Required checks for label presence, position, code quality, or other product criteria. | Verify label presence and detect bottles with labels outside the agreed position tolerance. | Inspection may require sensors or a vision system, a reject mechanism, and a method to confirm rejected containers. Define acceptance limits and validation procedures in advance. |
| Line integration | Available floor space, conveyor height and direction, line controls, and connections to adjacent equipment. | In-line installation on an existing conveyor with start/stop signals from the production line. | Check footprint, conveyor speed, guarding, electrical supply, communication signals, and upstream and downstream accumulation before ordering. |
| Environment and sanitation | Dust, moisture, washdown, temperature, and cleaning chemicals present in the operating area. | Routine wipe-down cleaning in a dry production area. | Environmental conditions influence frame materials, electrical protection, component placement, and cleaning procedures. Specify washdown needs rather than assuming standard equipment is suitable. |
| Accuracy and quality goals | Permitted label-position variation, cosmetic standards, and acceptable defect or reject rate. | Set a documented position tolerance and verify results across the full range of bottle and label formats. | Clear acceptance criteria make supplier trials meaningful and help determine whether standard application controls or additional inspection are needed. |
| Future production goals | Expected volume growth, new formats, automation plans, and available expansion space. | Plan for a potential increase in throughput and additional bottle sizes within the next few years. | Consider practical speed headroom, modular options, format flexibility, and integration capacity while balancing the initial investment and operating needs. |
| Acceptance trial | Sample bottles, labels, test duration, operating conditions, and pass/fail criteria. | Run representative product samples at the target rate and record placement, jams, changeover time, and rejects. | A documented trial helps confirm that the proposed configuration works with real materials and production conditions before final acceptance. |