Flange Type SFI Series Ball Screw

Performance Enhancement Design
Enhanced Preloading:  Often uses double-nut preloading or offset preloading methods to effectively eliminate axial clearance and significantly improve system rigidity, suitable for applications requiring high response speed and high positioning accuracy.
Optimized Raceway: The raceway profile and surface roughness are optimized to reduce noise, minimize wear, and improve load-carrying efficiency.
Accuracy Levels:  Typically offers multiple precision grades such as C5 and C7, with some models having higher accuracy reserves than the standard series to meet the demanding requirements of machine tools and other applications.
Specifications and Compatibility: The flange mounting dimensions of the nut may not be exactly the same as the standard SFU series; special attention is required during selection. A wide range of shaft diameters is available, from small to large.

Application Scenarios
The Flange type SFI series ball screw is designed for heavy-duty or precision applications with higher demands on performance, reliability, and lifespan:
Industrial Machine Tools and Heavy Equipment: Feed axes of CNC machine tools (machining centers, lathes), large stamping presses, and injection molding machine injection units.
High-Precision Automation: Heavy-duty motion axes of precision assembly centers and automated testing equipment, and the seventh axis ground rail of robots.
Energy and Transportation: Wind power generation pitch control systems, and transmission components for rail transit.
Any application requiring stronger, more durable transmission performance than the standard series.

The Flange type SFI series ball screw is an engineering solution for demanding industrial applications. It is not just a transmission component, but a key investment aimed at improving the overall performance limits and long-term operational reliability of the entire machine. Choosing the SFI series means selecting stronger power, more stable precision, and longer-lasting reliability for your core equipment, thereby building a solid performance advantage in the fierce market competition.

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Cyclone Milling Machines LWN160-6000mm Leistritz Cyclone milling machines imported directly from Germany, the ball screw shaft precision can be C3, C5, and C7 the max length can be 7000mm

Rolled Thread CNC Machines ST-20.2 and ST-347.7 rolled thread ball screw machines from TaiWan. The ball screw shaft precision can be C7 - C10

Ball Screw Assembly Workshop We conduct nut assembly in a constant temperature workshop,  all workers having decades of work experience and zero clearance between the screw and nut.

Ball Screw Assembly Workshop One ball screw shaft matches one ball screw nut. Because each ball screw shaft has a very tiny different tolerance. There are dozens of different ball sizes for different screw shaft. Our ball screw shaft and nut can be interchanged with the Taiwan TBI ball screw shaft and nut very well.