The IB-C50-AIR is a compact system but still spacious enough to house internal linear encoders. Our smallest system with this capability.

Except for the additional space for internal encoders, the design is very similar to our classic IB-C30-AIR slit system: The aperture is defined by four independently movable highly polished tungsten carbide blades. The blades are, in turn, controlled by a high-precision guiding rail system and high-resolution stepping motors.

The standard 2 mm blades can be installed in two configurations: Either providing a curved, polished surface of a 16 mm radius or providing a knife-edge slope at 0.5 degrees. The standard blades are polished to obtain an RMS roughness better than 25 nm.

If a slightly larger aperture is needed, IB-C50-AIR can easily be modified to an IB-C60-AIR (aperture size of 60 mm x 60 mm).

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Technical specifications

Aperture size
Maximum: 50 mm x 50 mm
Minimum: Full overlap

1 micron per full step

± 5 microns over the full range

Standard blades
2 mm thick tungsten carbide blades which can be mounted either with a 0.5 degrees knife-edge or an R16 radius edge

Limit switches (end-of-travel)
Included as standard on all motions

High precision internal rails and carriages

Electrical connections
Limit switches coupled to 2 motor connectors (SUB-D 15 pins male)

2-phase stepping motors

Mechanical dimensions
228 mm x 228 mm x 63 mm
166 mm x 166 mm x 63 mm (housing only)

Mechanical connections
M5-threaded holes on the sides, as shown on the drawing.

≈ 4.5 kg

Outer surface
Anodized aluminum in color nature

Common options
Operation in high vacuum: IB-C50-AIR is also offered in a high vacuum edition e.g. prepared for 10E-7 mbar or more depending on the chosen UHV-rated material options. In that way, it can be inserted into a high vacuum vessel.

IB-C50-AIR-CL: Cooled for operation <5 Watt heat load
Thermocouples for each blade

IB-C50-AIR with non-magnetic options are available (including non-magnetic guides).

Blade options: 5, 10 mm, other blade materials
Motors: Custom high-resolution stepping motors, including IMS motors
Encoders: Back-axle rotary encoders or Linear Renishaw encoders (absolute or incremental)