Acrylic bending machine with circulating cooling water system on both sides of heating pipe ensures that non-heated parts avoid thermal deformation, ideal for precise plastic bending tasks. Lightweight and practical design with low cost, portability, low energy consumption, and reliable operation; even heating with adjustable temperature for versatile use. Bends various plastic plates including acrylic, PVC, and thermoplastic materials; use multiple heaters to create multiple bends simultaneously for efficiency. Manual hot bending tool with power supply and water pipe joints on same end for easy plugging, storage, and quick assembly to workbench. Widely applicable in decoration, sign making, display cases, aquarium packaging, curved shelves, curtain walls, and large light boxes for acrylic and plastic plates.