WS11K (N) series of CNC horizontal-down three-roller plate rolling machines achieved international advanced technology, acquired several Chinese patents, with particular structure and superior performance. This series adopt patents with absolute proprietary intellectual property rights. Both lower rollers can move horizontally, and only one feeding of plate is needed to realize pre-bending and rolling the end of plate, without reversion.
Besides, it has the features as following：
1. Patent technology that either of 2 lower rollers is driven by individual driving system separately, eliminating mechanical interference, vibration and loss from slip friction. Besides, roller bearings are the type of self-aligning for milling machine, low energy consuming, and low power is required by main motor. It saves energy, and protects environment.
2. 3 patents of Hydraulic Three-roller Rolling Machine (ZL200420001177.5), Conjoined Oil Cylinder (ZL200540053274.8), as well as a Cone Rolling Device for plate rolling machine (ZL200520129154.7). The oil cylinder of turn end is set beneath the bed, compacted the whole machine structure, the volume of the turn end reduced. It reduces the machine area, decreases the turning power the turn end needed. Besides, it enables bending small cone and dishing parts around reverse head body, expanded its applications.
3. Patent of movable device for Horizontal-down Type Plate Rolling Machine (ZL200520007511.2). It makes the structure of the horizontal movable device compact, and brings concise positioning and convenient maintenances.
4. The synchronal lifting up & down of both ends of upper roller, gradient controlling and leveling of cone rolling, horizontal moving of lower roller, is controlled by CNC automatically, with high precision.
5. The CNC system is invented and developed by the Company, with advanced technology of the multifunction as following: screen display, rolling calculation, program control, technical parameter memorization, software protection, failure alarm, as well as man-machine conversation.