Spreizer

Spreizer is a German term that translates to "spreader" or "expander" in English. It designates a device or tool whose purpose is to apply outward force to separate, widen, or distribute components or materials. The form and mechanism vary by application, ranging from simple hand tools to complex devices integrated into machinery.

Typical forms include manually operated spreaders, hydraulic or pneumatic spreaders, and spreader components in larger equipment. They commonly consist of arms, plates, wedges, or blades that push apart surfaces, maintain a gap, or distribute substances or forces evenly within a joint, mold, or assembly. Applications span fields such as assembly and positioning, material handling, and molding or formwork processes.

Etymology: The word derives from the German verb spreizen "to spread" and the agent-noun suffix -er. The term is cognate with the English "spreader" and is used across German-speaking technical contexts to describe devices that perform spreading actions.

Because Spreizer covers a broad category of devices, the exact meaning depends on the industry and context. The concept is primarily directional: it denotes tools designed to widen, open, or distribute by applying outward force.