Johnsen Ultravac offers UHV manipulators in six
standard sizes. Modular in design and available
as a straight Z translator or as an XYZ manipulator,
they are extremely adaptable.
System mounting flanges
vary from 2.75" O.D.
with 1.5" I.D. bellows to 13.25" O.D.
flange with 10.00" I.D. bellows. Our XYZ
Manipulators are similar to the Series 3000 and
Motion Devices with the exception of the additional
XY Stage. A rigid design ensures maximum payload
capacity and strength. These manipulators are
ideally suited for a number of tasks, including
physics or chemistry applications, MBE, positioning
of targets or positioning of a multi-sample carrier
in an analytical instrument. The XY stages may
also be acquired as a separate unit or in combination
with the 2000 Series Linear Motion Device, thereby
providing a cost-effective long stroke XYZ Manipulator.
units are suitable for 10 -10 Torr operation
with a stainless steel welded bellows. We can
also provide a complete assembly with various
- X & Y motion: ± 0.50" to
- Bellows inside diameter: 1.39" to
- Base Flange: 2.75" to 14.00" O.D.
- Polar rotation: 360 degrees
- Azimuthal rotation:
± 180 degrees
- Tilt: ± 30 degrees
- Heating: 1200 °C
- LN cooling: -160 °C
- Helium cool to 10 °K
- Substrate: Crystal size to 300 mm
- Payload: Series
4000 – 500 lb (225 kg)
Linear Motion Devices
We offer a variety of Linear Motion Devices for
a wide range of applications.
Ideal for load locks, sample preparation, parking
stages and sample processing, the Model 1000
easily adapts to numerous sample carriers.
a rack and pinion drive supported by Teflon bushings,
while the rack is machined from stainless steel
and electro-polished. With an adjustable coupling
end, it offers more flexibility when aligning
a transfer point and the optional "Quick
provides a greater span for sample manipulation.
The series 2000 linear motion devices are constructed
from extruded aluminum with an anodized finish
and are bakeable to 250 degrees C. The bellows
assembly is available in 2.75", 3.38" and
4.50" flange sizes. The standard "Z" drive
utilizes a stainless steel acme screw with bronze
nut. It is supported by hardened stainless steel
guide rods with 5mm linear motion per turn. A
pneumatic cylinder "Z" drive is optional,
with flow controls.
Applications vary from sample
transfer to sample
processing. The MODEL 2000 can accommodate
heating and cooling stages, motor drives, encoders,
platforms and XY platforms. Vertical or horizontal
mounting is possible.
MODELS 3000 & 4000
Constructed from high-grade
aluminum with a hard anodized finish and bakeable
to 250 °C,
their rigid design and strength ensures maximum
payload capacity. They can also be mounted
vertically or horizontally. Repeatability of
the "Z" drive
is .01 mm with a linear motion of 1 mm per
turn. A variety of options are available