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Lesker Linear Motion (Rack & Pinion) Transporter
The Kurt J. Lesker Linear rack-and-pinion sample (LRP) transporter:
The LRP's 1" diameter extruded aluminum transfer arm with 1/2" diameter end effecter has a hardened stainless steel rack insert for strength and durability. It is driven by an aluminum bronze pinion gear. It has two diametrically opposed hardened stainless steel bearing-guide shafts that ride on a precision chamfered eight-bearing support carriage. This construction keeps the drive compact—yet ensures rigidity for heavier load transfer applications—and light to minimize end-droop at full insertion.
The LRP utilizes as standard a ferrofluid rotary drive to rotate the pinion. It is rated for use at 10-11 Torr, and bakeable to 150°C. The residual magnetic fields associated with this actuator are minimal. The LRP can be retrofitted with other type rotary drives. Please contactThis email address is being protected from spambots. You need JavaScript enabled to view it. for information.
Motorization of the rotary drive is available as an option. A servo motor is mounted inline on the drive, enabling automated operation of the transfer arm. Motors are easily removed for bakeout.
A limit switch is included. It gives a contact closure, indicating the probe is fully retracted. This signal can be interlocked to prevent the premature closing of a pneumatic-actuated gate valve through which the probe passes.
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Lesker Linear Motion (Rack & Pinion) Transporter