Product Overview

The modern metal forming industry demands higher efficiency, tighter tolerances, and lower per-part costs. Single-end necking machines have long served as the standard solution for reducing tube diameters, but they present an inherent bottleneck: processing one end at a time doubles handling time, introduces repeated positioning errors, and limits overall production flow. The Bilateral Necking Press emerged as a direct response to these pain points, redefining how manufacturers approach tube end forming.

This machine is engineered to perform simultaneous necking, reducing, or swaging operations on both ends of a tubular workpiece within a single clamping cycle. By eliminating the need to flip and reposition the tube, it cuts cycle time by approximately 45–55 % compared to sequential single-end processing, while improving coaxiality between the two finished ends. The result is not merely faster production—it is more consistent production, with end-to-end concentricity deviations consistently held within ±0.05 mm on standard steel tubes.

The machine’s construction reflects heavy-duty industrial priorities. The main frame is fabricated from high-grade welded steel plates, stress-relieved through controlled thermal aging to eliminate residual deformation over years of service. Guideways are induction-hardened and precision-ground, achieving a surface hardness of HRC 52–56, while the sliding blocks incorporate bronze-impregnated PTFE liners for low-friction, maintenance-free movement. Such attention to mechanical integrity ensures that the Dual Side Swaging Unit maintains its original geometric accuracy even after millions of cycles.

Key Specifications

These specifications represent the baseline for the Bilateral Necking Press. Every machine undergoes a 4-hour continuous run-in test at the factory, with actual test parts measured and recorded. The test report, including all dimensional data, is shipped with each unit. For projects requiring non-standard capacities, our engineering team provides a customized specification sheet within 3 working days after receiving your tube samples and drawings.