The Pneumatic Sheet Press is a standard specimen preparation device specifically designed for pulp and paper laboratories, fully compliant with the QB/T 3703-1999 standard (Preparation of laboratory sheets + conventional sheet former method). This equipment adopts a pneumatic control system with an adjustable working pressure range of 0-0.9 MPa, a standard pressing pressure of 0.414 MPa, a cylinder diameter of 63 mm, and a nominal pressing force of 45-80 Kg. The pressing platen accommodates specimens up to 310×310×200 mm. By applying controlled pneumatic pressure, it rapidly removes water from wet handsheets, significantly increasing their density, smoothness, and physical strength. The unit features a compact and lightweight structure with overall dimensions of 570×400×900 mm and comes complete with an air compressor for ready-to-use operation. It is an indispensable step in the standard handsheet preparation workflow, delivering properly pressed specimens for subsequent physical property testing.

The Heated Platen Press is a hydraulic hot-pressing device specifically designed for pulp and paper laboratories. As a dedicated companion to the AT-CP series sheet formers, it performs hot pressing, pulp molding, and wood-based panel hot pressing on specimens up to 320×260 mm. The machine employs a hydraulic drive with a specialized cylinder and high-pressure retention components that maintain constant pressure for over 4 hours after the pump stops, ensuring short pump runtime, long working duration, and ultra-quiet operation. It features 3000 W heating power with PID intelligent temperature control (±3°C), adjustable working pressure from 0 to 5 MPa, a φ100 mm piston, a platen area of 320×300 mm, and a stroke of 200 mm. Constructed from stainless steel for corrosion resistance and lightweight durability, it satisfies QB/T 3703-1999 standard pressing requirements while also enabling hot calendering experiments. The unit comes complete with felt cloth, plain cotton cloth, and other accessories, making it an ideal companion for standard handsheet preparation and thermoforming research in the laboratory.