The China International Exhibition on Label Printing Technology 2026

Air-expanding shaft

An inflatable mandrel is a highly efficient mechanical component, primarily used in winding and unwinding equipment, with the following key features: - Rapid inflation and deflation: The mandrel can quickly separate from or secure a paper tube, completing this process in just 3 seconds without disassembling any components at the shaft ends, ensuring a tight fit. - Easy installation and mobility: By simply inflating or deflating, the mandrel allows for effortless positioning and secure fixation of the paper tube at any point along its surface. - High load-bearing capacity: Mandrels can be customized to suit various diameters, and high-strength steel materials are employed to enhance their weight‑carrying capability. - High precision: Constructed from alloy steel, the mandrel exhibits excellent resistance to deformation and minimal runout, ensuring superior product quality. - Cost‑effective efficiency: Its specialized design accommodates paper tubes of varying thicknesses and widths, maximizing material utilization. - Simple maintenance and long service life: With a single‑part design and standardized components, the mandrel is easy to maintain and replace. Furthermore, inflatable mandrels are widely utilized in industries such as lithium‑ion battery separators, copper foil, optical films, textiles, printing, papermaking, and packaging, significantly boosting production efficiency while reducing labor costs.

Pneumatic expanding mechanical chuck

The pneumatic expanding chuck is a mechanical fixture that uses air pressure to control expansion and contraction, specifically designed for the rapid clamping of cylindrical workpieces. Its key features include tool-free operation and high adaptability.

Hand-swelling shaft

The hand‑expanding shaft is a lightweight, cantilever‑type winding device designed on the principle of screw mechanics. It achieves axial expansion and contraction through rotary actuation and is specifically engineered for winding lightweight materials. It is well suited to short‑wheelbase, low‑load applications in light industries such as packaging, labeling, and film production.