For machinery and equipment, sample provision or trial run services are available. Most factories support free trial runs (where the client sends materials to the factory, and the factory provides test videos and finished sample parts) or offer sample fees that are refundable upon order placement. In the context of machinery, “samples” equate to trial runs, prototyping, or FAT (Factory Acceptance Testing); shipping an entire machine as a sample is impractical, so conducting trial runs using the client’s materials is the industry standard.
I.
Sample Methods: Trial Runs and Prototyping
Machinery “samples” are not simply small physical specimens: ① Free Trial Runs: Materials are sent to the factory (e.g., Xinsiman, Henglong, Yongte); engineers conduct trials and provide test videos, high-quality finished samples, and process parameter sheets (covering capacity, temperature, torque, etc.), with the samples then returned to the client. ② Prototyping/Testing: For welding or processing equipment, workpieces are sent in for free prototyping (including destructive testing or metallographic analysis to verify quality). ③ FAT (Factory Acceptance Testing): The complete machine undergoes a trial run using actual materials at rated capacity (prior to shipment)—trial runs represent the standard form of “sampling” for this equipment.
II.
Sample Cost Policies
Policies vary by stage (e.g., Litai’s approach): Pre-sales—buyer pays shipping upfront, which is deducted from the order cost later; Mid-sales—samples are free, but the buyer covers shipping; Post-sales—spare part samples are free, including shipping. Some factories charge a sample fee (to filter for serious buyers and cover customization and logistics costs; refundable upon order placement). Prototyping fees: Simple products require no prototyping, while fees for complex prototyping are fully refunded upon order placement (e.g., Huiting)—generally, sample fees are refundable or can be offset against the order total.
III. Alternatives to On-Site Inspection: Video-Based Verification
For overseas buyers unable to visit the factory: Most factories test each unit and send a video before shipment (e.g., Mingyang provides a test video for every unit prior to delivery); options include video calls for inspection (real-time operation/load testing) and third-party inspection (e.g., SGS or BV witnessing the Factory Acceptance Test—FAT—costing $300–$800). An example involves an Indian buyer conducting a full machine inspection and on-site operational test, then uploading the case to YouTube (WESTONIX)—demonstrating that video inspection combined with third-party verification serves as a viable alternative to remote sample processing.
IV.
Key Considerations for Samples
First, test with actual materials (this ensures the resulting parameters are meaningful); second, define requirements in writing (clarify acceptance criteria—such as production capacity, precision, and finished product yield—before sampling); third, confirm costs (determine if sample fees, shipping, or processing charges are refundable or deductible against the final order, and include this in the Proforma Invoice/PI); fourth, export customs declaration (label samples as “non-commercial” to expedite clearance); fifth, lead time (testing usually takes 1–2 working days, e.g., Shengwei takes 2 days)—the cost of the sampling process is far lower than the risk associated with purchasing the entire machine.
V.
Application Process for Overseas Buyers
First, inquire about the sample policy (is it free or refundable? Most fees can be offset against the order); second, send materials (ship actual processing materials to the factory for testing); third, request evidence (test videos, parameter sheets, and finished sample parts); fourth, conduct remote inspection (via video call or third-party witness); fifth, place the order upon satisfaction (apply the sample fee toward the deposit). Industry experts advise: Equipment sampling equates to free trial runs, processing tests, and FATs (sending materials to the factory to receive videos and sample parts); sample fees are often refundable or deductible;
and one should place an order only after clearing the three hurdles of remote video verification and third-party witnessing.
