Slip and non-slip wire drawing machines differ in how the wire is transmitted through the capstans. In slip-type machines, controlled sliding occurs between the wire and capstan surface, allowing higher drawing speeds, typically up to 15–25 m/s, and making them suitable for medium precision wires in the range of 0.1–1.0 mm.
In non-slip fine wire drawing machines, the wire speed is synchronized with each capstan, eliminating slip and ensuring constant tension between passes. This results in better diameter control and surface quality, especially for fine and ultra-fine wires in the range of 0.02–0.5 mm. Non-slip systems are commonly used where tight tolerances and stable mechanical properties are required.