Bag Making Machine Quotation Technical Deep Dive: Performance Guarantees and Acceptance Criteria
A bag making machine quotation should include clear performance guarantees and acceptance criteria to protect the buyer. The guarantees cover key performance indicators (KPIs): maximum speed (BPM), bag length accuracy (tolerance), registration accuracy (for printed bags), seal strength (minimum peel force), and reject rate (maximum percentage). The acceptance criteria define how these KPIs are measured during the Factory Acceptance Test (FAT) and Site Acceptance Test (SAT). For speed, the machine must run at the rated speed for a sustained period (e.g., 1 hour) while producing bags within quality tolerances. For accuracy, a sample of 100 bags is measured; the average and standard deviation must be within the specified limits. For seal strength, a peel test is performed on 10 samples; the average must exceed the minimum, and no sample may fall below 80% of the minimum. The reject rate is measured by running the machine for a defined period and counting defective bags; the rate must be below the specified percentage (e.g., 2%). The quotation should also specify the film type and bag size used for the test, because performance varies with film. The buyer should ensure that the test conditions match their actual production.
Performance guarantee clauses: The quotation should state the consequences if the machine fails to meet the guarantees. Typically, the supplier is given a period to remedy the issues (e.g., 30 days). If the issues persist, the buyer may have the right to reject the machine and receive a refund, or to receive a partial refund (liquidated damages). The liquidated damages clause might state a reduction of a percentage of the machine price for each performance parameter not met. For example, if the speed is 5% below the guarantee, the price is reduced by 5%. This encourages the supplier to meet the guarantees. The guarantee should also cover the durability of the machine – e.g., the machine must maintain performance for at least 5 years with normal maintenance. This is harder to guarantee, but the supplier should offer a warranty on critical components (sealing bars, servos, PLC) for a specified period. The quotation should also include a clause for the supplier's liability for consequential damages (lost production, etc.). Many suppliers limit liability to the machine price. The buyer should negotiate for more favorable terms.
Plastic Bag Making Machine
Acceptance test procedures: The quotation should outline the test protocols. The FAT is conducted at the supplier's factory. The buyer's engineer runs the machine with the buyer's film and bag design. The test is documented, and the results are recorded. If the machine passes, the buyer signs the FAT. If it fails, the supplier corrects the issues and re-tests. The SAT is conducted at the buyer's facility after installation. The same tests are repeated under the actual production environment (ambient temperature, humidity, etc.). The SAT is crucial because the machine may perform differently at the buyer's site due to different conditions. The quotation should specify the time allocated for the SAT (e.g., 2 days) and the number of bags required for the test. The buyer should also have the right to extend the test if issues arise. The acceptance criteria should be objective (e.g., measured by instruments) to avoid disputes. The buyer should have their own calibrated instruments to verify the measurements.
Penalty clauses for non-compliance: If the machine fails to meet the acceptance criteria after multiple attempts, the buyer should have the right to reject the machine and demand a full refund, or to accept the machine with a price reduction. The penalty clause should be proportional to the deficiency. For example, if the speed is 10% low, a 10% reduction. The clause should also cover delays – if the machine is delivered late, the buyer should receive a penalty per week of delay (e.g., 0.5% of the machine price). The buyer should also ensure that the warranty period starts after the SAT is passed, not after delivery. By including clear performance guarantees and acceptance criteria in the quotation, buyers can ensure that the bag making machine they purchase delivers the promised performance, and they have recourse if it does not.
