Linear Shifts

The linear shift is a UHV transfer mechanism that is fabricated from a pair of flanges, connected by an edge welded bellows.

The free flange moves towards the fixed flange in a controlled, precise motion whilst maintaining parallelism. Its action is similar to the Z slide manipulator, but with slightly reduced travel length and overall positioning resolution. The standard mounting flange is DN 40CF or DN 63CF. The shift is actuated by a handwheel and can work in any orientation.

Application

The linear shifts are used in applications that don’t require the higher precision and graduated movement of other linear motion devices. They are normally used for:

  • Manipulation of surface science tools with respect to the sample position
  • Manipulation of evaporation and sputter sources
  • Manipulation of electron and x-ray sources
  • Manipulation of quartz oscillators
  • Sample transfer applications

Additional information

The linear shifts are designed for the linear movement of instruments with minimum tilt or wobble in the movement, maintaining precision alignment before and after pump-down.

Technical Data

Base flange DN 40CF or DN 63CF
Travelling flange DN 40CF
Z range 25, 50, 75, 100 of 150 mm
Bellows ID 38.5 mm
Positional control handwheel
Resolution 1 mm
Repeatability 1 mm
Tilt range (for LS with tilt) ± 4°
Bakeout temperature up to 150 °C

 

COMPRESSED / EXTENDED LENGTH

Compressed length [mm] Extended length [mm]
Z range [mm] standard high stability with tilt
DN 40/40CF DN 63/40CF DN 40/40CF
double guided below
DN 40/40CF DN 63/40 CF DN 40/40CF DN 63/40CF
25 45
70
47.5
72.5
-
-
-
-
47.5
72.5
-
-
-
-
50 51
101
55
105
-
-
-
-
60.7
110.7
-
-
-
-
75 53
128
60
135
-
-
54.3
129.3
-
-
65
140
-
-
100 65
165
69
169
-
-
65
165
 69
169
66
166
55
157
150 -
-
-
-
80
230
-
-
-
-
-
-
-
-

Contact Us for Additional Information or Pricing