Our steel drum necking machine is the essential equipment that reduces the diameter of the drum mouth end to increase the joint strength between the lid and the drum body, ensuring stability when finished drums are stacked. The machine features a horizontal dual-head configuration with a main spindle driven by a motor and an adjustable necking roller mounted on a slide mechanism. The necking roller is actuated by a cam device or hydraulic cylinder, moving radially against the rotating drum to form a precise, uniform neck around the entire circumference. Available in semi-automatic and fully automatic configurations, our necker handles standard 200L drum diameters (560–571.5mm) and steel thicknesses from 0.6mm to 1.25mm. The machine integrates seamlessly with flanging and beading equipment and can be arranged in-line for fully automated production. Advanced models feature PLC control with recipe storage for quick changeover between different drum sizes. Backed by over 10 years of manufacturing experience, we provide customized necking solutions, installation guidance, and comprehensive after-sales support to ensure your steel drums achieve the structural integrity required for safe stacking and shipping.