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The function of a cast film testing machine
Summary: The cast‑film pilot machine is a compact laboratory device that faithfully replicates the entire industrial cast‑film production line—extrusion, die‑casting, cooling and shaping, traction, and winding—enabling R&D and prototyping of polymer films such as TPU.
Publication date:2026-09-28
Author: OUDI MACHINERY
The cast‑film pilot machine is a compact laboratory device that faithfully replicates the entire industrial cast‑film production line—extrusion, die‑casting, cooling and shaping, traction, and winding—enabling R&D and prototyping of polymer films such as TPU. It allows for small‑batch production of film samples, rapid screening of raw‑material formulations, and fine‑tuning of process parameters—including temperature, screw speed, layer‑thickness ratios, and tension—while assessing key quality attributes like transparency, tensile strength, peel adhesion, fish‑eyes, and crystallization points. The system supports single‑layer or multi‑layer co‑extrusion (including three‑layer in‑die lamination) trials, facilitating early validation of interlayer bonding and helping to identify potential risks before full‑scale production. By using only limited quantities of raw materials, it minimizes waste and downtime associated with repeated trial runs on large production lines, and the optimized process settings derived from these tests can be directly applied as reference for scaling up to commercial production. Primarily used for new‑product development, raw‑material evaluation, and process optimization, it can also produce test specimens for subsequent physical‑property testing, thereby shortening the product‑development cycle.
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