| Counting Accuracy | Target a validated counting accuracy of at least 99.9% under normal operating conditions. | Reduces underfilled and overfilled bottles, product waste, customer complaints, and manual recounting. | Run at least 10 consecutive test batches using different tablet sizes and compare the counted quantity with a manual reference count. | High |
| Counting Speed | Compare the supplier’s rated output in bottles per minute and tablets per minute. For example, 40 bottles per minute with 30 tablets per bottle equals 1,200 tablets per minute. | Helps the business match equipment capacity with current demand and future production growth. | Test the machine with the intended tablet size, bottle format, and filling quantity instead of relying only on an empty-machine speed claim. | High |
| Tablet Size Range | Confirm the supported tablet diameter and thickness range, such as approximately 2–25 mm in diameter, depending on the machine design. | Allows one machine to handle multiple products and reduces the need for separate equipment. | Check actual product dimensions against the equipment specification and perform a test with the smallest and largest tablets used in production. | High |
| Product Changeover | Evaluate tool-free or low-tool changeover, removable contact parts, and clearly defined changeover steps. | Shortens downtime when switching between tablet types, package sizes, or production orders. | Measure the time required to clean, adjust, and restart the machine between two products. | High |
| Hopper Capacity | Compare the usable hopper volume with the required batch size. Many compact systems use a hopper capacity of roughly 1–5 liters, while larger systems may provide more. | A larger usable hopper can reduce operator loading frequency, but excessive height or capacity may increase handling difficulty. | Calculate the number of bottles that can be filled per hopper load using the average tablet volume and target count per bottle. | Medium |
| Tablet Handling and Jam Prevention | Look for controlled product flow, anti-bridging design, gentle vibration, and sensors for blocked chutes or irregular feeding. | Protects tablets from chipping or breakage and reduces stoppages caused by bridging or double feeding. | Run fragile, coated, and irregularly shaped tablets and record stoppages, damaged tablets, and rejected bottles. | High |
| Detection and Rejection | Assess sensors for missing bottles, bottle jams, double containers, low product supply, and out-of-count conditions. | Prevents incorrectly filled containers from continuing to labeling, packing, or shipping stages. | Introduce controlled faults during a demonstration and verify that the machine stops, alarms, or rejects the affected container as specified. | High |
| Container Compatibility | Confirm compatibility with the required bottle diameter, height, neck design, and container material. | Enables the same counter to support different packaging formats and reduces line integration problems. | Test every planned container type, including the smallest and largest formats, at the intended production speed. | High |
| Dust Control | Evaluate an integrated dust extraction connection, enclosed product paths, and accessible dust collection areas. | Improves workplace cleanliness, protects sensors, and helps maintain consistent counting performance. | Operate the machine with dusty products and inspect the work area, internal surfaces, filters, and extraction connection after testing. | Medium |
| Cleaning and Sanitation | Prefer smooth surfaces, limited product traps, corrosion-resistant contact parts, and removable components that can be cleaned without excessive disassembly. | Supports hygienic production and reduces cleaning labor between batches. | Time a complete cleaning procedure and inspect whether all product-contact areas are visible and accessible. | High |
| Material Compatibility | Verify that product-contact components use suitable materials, such as stainless steel or other materials approved for the intended application. | Reduces corrosion, contamination risk, and premature wear when handling pharmaceutical, nutraceutical, or food products. | Request a written material list for all product-contact parts and compare it with the company’s hygiene and regulatory requirements. | High |
| Control System | Assess touchscreen controls, password-protected settings, recipe storage, alarm history, and adjustable counting parameters. | Makes operation more consistent and reduces setup errors between operators and production shifts. | Ask operators to create, save, recall, and modify a product setup during a live demonstration. | Medium |
| Data and Traceability | Check whether the system records batch settings, production totals, alarm events, rejected containers, and operator actions. | Improves production records, troubleshooting, quality investigations, and audit readiness. | Confirm the available export format, timestamp behavior, user permissions, and retention period for production data. | Medium |
| Line Integration | Review conveyor height, infeed and outfeed direction, electrical requirements, communication interfaces, and available installation space. | Reduces installation delays and ensures that the counter works reliably with bottle unscramblers, cappers, labelers, and inspection equipment. | Prepare a layout drawing and verify mechanical, electrical, and control connections before purchase. | High |
| Electrical Requirements | Confirm the required voltage, frequency, phase, connected load, and compressed-air requirements, if applicable. | Prevents unexpected facility modifications and compatibility issues during installation. | Compare the equipment nameplate and installation manual with the site’s available utilities. | High |
| Operator Safety | Look for guarded moving parts, emergency-stop controls, interlocked access panels, and clear alarm indicators. | Reduces the risk of injury and supports safer routine operation and maintenance. | Inspect all access points and verify that opening a guarded area produces the intended safe-stop response. | High |
| Noise and Working Environment | Request the measured operating noise level in dB(A), particularly when vibration feeders, conveyors, or dust extraction are used. | Helps businesses plan operator comfort, workplace layout, and hearing-protection requirements. | Measure sound at the normal operator position while the machine is running at the intended production rate. | Medium |
| Maintenance Requirements | Review lubrication points, wear components, inspection intervals, spare-part availability, and estimated preventive-maintenance hours. | Improves uptime and makes the total cost of ownership easier to forecast. | Request a preventive-maintenance schedule and calculate annual labor and replacement-part costs. | High |
| Validation and Documentation | Evaluate the availability of user requirements, functional specifications, operating procedures, test records, and calibration information. | Supports regulated production, repeatable performance, and internal quality approval. | Review a documentation sample before purchase and confirm which documents are included with delivery. | High |
| Return on Investment | Compare purchase cost, installation, training, maintenance, labor savings, throughput improvement, and reject reduction over the expected service life. | Shows whether automation creates measurable financial value rather than focusing only on the initial purchase price. | Use the formula: annual benefit minus annual operating cost, divided by total investment, to estimate the payback period and return. | High |
| Scalability | Assess whether the machine can support future increases in bottle count, additional tablet formats, extra inspection devices, or a higher-speed line. | Extends equipment usefulness as product volume and packaging requirements grow. | Ask the supplier to identify the maximum practical output, upgrade options, and limitations for future product formats. | Medium |
| Acceptance Testing | Define measurable acceptance criteria for accuracy, speed, changeover time, reject response, cleaning, and safety before delivery. | Ensures that the purchased machine performs according to the business’s actual operating requirements. | Use representative tablets and containers in a documented factory acceptance test and site acceptance test. | High |