High pressure rotary union
Kadant Johnson Inc.

The G rotary union is a high performance, high precision rotary union for coolant, water, and hydraulic oil applications. Type G unions are generally used on CNC machine spindles, gun drills, milling machines, and other cutting tools. The G union is designed for speeds up to 50,000 rpm and pressures up to 3,600 psig in sizes ranging from 1/4" (M10) to 5/8" (M16).

The Multi-Pass rotary union is custom-designed for pneumatic, hydraulic, and water applications. The union is supported on precision ball bearings that are lubricated for life. The housing materials include stainless steel, aluminum, steel, and brass. Standard passage sizes are 1/8" through 1" with other sizes available. MP unions are available with up to 12 passages and rated up t 225 degrees F, 3,000 psig, and 500 rpm.