Radial Transfer ArmThe radial telescopic transfer arm (RTTA) provides a sample reach of 760 mm beyond the chamber connection flange. When the arm is fully retracted it will fit in a chamber with an internal diameter of 630 mm and can hold samples up to 138 mm in diameter. Designed for space efficiency, the RTTA provides true rotation with no oil, slip rings, bellows or differential pumping. The benefit of this innovative design is that the RTTA chamber can be much smaller than those required for other transfer arms.