| 1 | Match the machine to the process | Confirm whether the equipment is designed for cutting, edging, drilling, washing, tempering, laminating, or insulating-glass production. | Machines with different process functions are not directly comparable. Check the intended glass type, operation sequence, and required upstream and downstream equipment. | Provide representative product drawings and describe the complete production flow before requesting quotations. |
| 2 | Check glass size and thickness limits | Compare minimum and maximum glass dimensions, thickness range, loading method, and any restrictions on shape or glass type. | Limits vary by machine model and process. For example, cutting tables and edging lines have different size and thickness capabilities; confirm the exact working range in the technical offer. | Ask the supplier to confirm that your smallest, largest, thinnest, and thickest products are within specification. |
| 3 | Compare capacity under the same conditions | Review the stated production rate and its unit: sheets per hour, metres per minute, pieces per hour, or batch size. | Output depends on glass dimensions, thickness, shape, loading, processing steps, and operator handling. A maximum travel speed is not the same as finished-product throughput. | Request a capacity calculation using your product mix and ask the supplier to state the assumptions behind the quoted figure. |
| 4 | Evaluate automation and integration | Compare manual loading, powered loading, automatic conveying, recipe control, barcode or production-system connectivity, and unloading options. | Automation can reduce handling and improve process consistency, but it may add equipment, controls, floor-space needs, and maintenance requirements. | Identify which production steps must be automated and confirm interface requirements with existing or planned equipment. |
| 5 | Define quality and accuracy requirements | Check the specified dimensional tolerance, edge or hole quality, repeatability, and inspection method relevant to the process. | Acceptable tolerances depend on the product, process, and customer standard. Accuracy claims should specify the measurement method and operating conditions. | Submit sample drawings and quality criteria, then request a test using representative glass and documented results. |
| 6 | Verify utilities and installation needs | Compare electrical supply, connected load, compressed-air demand, water requirements, exhaust or cooling needs, and machine footprint. | Electrical systems differ by destination. Three-phase 380–415 V, 50 Hz is common in many markets, but it is not universal; site conditions must be confirmed. | Have a local electrician or installer review the machine utility schedule, foundation needs, access routes, and layout before purchase. |
| 7 | Review safety and local compliance | Check guarding, emergency stops, interlocks, operating instructions, electrical documentation, and applicable destination-market requirements. | Safety and conformity obligations depend on the country and machine category. Do not assume that a general conformity statement covers every local requirement. | List the standards and documents required for import, installation, and workplace use, and confirm them in writing with the supplier. |
| 8 | Assess changeover time and flexibility | Compare setup adjustments, recipe storage, tooling changes, compatible product range, and time required to switch between jobs. | Frequent changes in glass size, thickness, or product design can affect usable output even when the machine’s rated speed is high. | Ask for a changeover demonstration using two or more products from your normal production schedule. |
| 9 | Check service, training, and spare parts | Review installation support, operator and maintenance training, remote diagnostics, response arrangements, manuals, and spare-parts availability. | Response time and parts delivery depend on location, stock, and service arrangements. Wear parts and critical components should be identified before commissioning. | Request a recommended spare-parts list, training plan, warranty terms, and service procedure for your region. |
| 10 | Compare total cost, not only purchase price | Include machine price, transport, duties, installation, tooling, utilities, consumables, maintenance, training, and expected downtime. | A lower initial price may not represent a lower operating cost if energy use, tooling, service access, or production losses are higher. | Compare quotations over the same ownership period and production assumptions, with exclusions and payment terms clearly listed. |