Two Technical Routes to Resolve Selection Dilemmas: In-Depth Comparison Between DGSMARTWIN CUM and CFW Series Linear Motor

Two-Road Breakthrough: In-Depth Comparison of SMARTWIN CUM and CFW Series Linear Motors

In the motion control sector of automated manufacturing, selecting the technical route for linear motors has always been a critical decision in equipment development. Iron-core linear motors have become the mainstream choice for general applications due to their high thrust and cost-effectiveness, yet they are constrained by inherent issues such as cogging effect and magnetic attraction.Ironless linear motors, with their zero cogging and ultra-high dynamic performance, are ideal for precision scenarios but often struggle with balancing thrust output and cost. As a leading domestic enterprise in direct drive technology, DGSMARTWINprecisely addresses the industry’s selection challenges by launching two core product lines:the CUM Series Ironless Linear Motors and the CFW Series Iron-Core Linear Motors. Representing two mature technical routes—ironless and iron-core respectively—they deliver differentiated performance advantages and full-scenario adaptability, providing one-stop linear motion solutions for customers across diverse industries and operating conditions.They have emerged as a benchmark for the domestic substitution of core components in high-end equipment.

From the perspective of core structure and performance, the technical logic of the two series is essentially different: The CFW Series iron-core linear motors adopt the classic design of coil-wound laminated iron cores. Relying on a single-sided magnetic circuit to maximize the utilization rate of the magnetic field, they achieve industry-leading thrust density and wide coverage of continuous and peak thrust, perfectly adapting to heavy-load scenarios such as heavy-duty cutting and material handing in large-scale production lines. At ,the same time, the optimized magnetic circuit design greatly reduces cogging force, ensuring stable operation in medium and high-precision scenarios. The feature of iron core-assisted heat dissipation makes its high temperature resistance outstanding, adapting to long-term continuous operation conditions with significant cost-effectiveness advantages. In contrast, the CUM Series ironless linear motors adopt a hollow coil forcer design, completely eliminating the stator iron core, which fundamentally eliminates cogging effect and magnetic attraction, achieving extremely smooth motion trajectories and nanometer-level positioning accuracy. They can operate stably on vertical axes without additional counterweights, greatly simplifying the equipment structure. The low inertia characteristic endows them with ultra-high acceleration and fast response capability, adapting to scenarios such as high-speed precision motion and ultra-precision positioning. Meanwhile, the advantage of high thrust density and low temperature rise ensure stable operation under long-term high-load conditions, and the compact volume makes them more suitable for special scenarios such as miniaturization and clean rooms.

For different application requirements, the two series have formed a clear selection logic, providing customers with full-scenario coverage solutions: The CFW Series iron-core linear motors focus on heavy load, high thrust and high cost-effectiveness, making them the optimal solution for scenarios such as general automated production lines, semiconductor AOI inspection, and laser chamfering/cutting. The CUM Series ironless linear motors are suitable for ultra-precision, high dynamic, vertical axis adaptation or semiconductor chip packing, 3C electronic precision assembly, and laser processing equipment.

As a high-tech enterprise deeply engaged in the drive track, SMARTWIN Intelligent has realized the full-process independent R&D and mass production of the two series of products. It not only provides 1:1 size-compatible import substitution solutions, but also establishes a full-process service system from selection consultation, customized development to after-sales maintenance. With two complementary product matrices, it covers all scenarios needs from light load to heavy load and from micrometer level to sub-micrometer level, helping domestic high-end equipment enterprises break the technological monopoly of oversea brands, realize independent control of core components, and inject strong impetus into the high-quality development of China's high-end manufacturing.