long positioning table with mechanical position indicator PT4808-PA
- from 5 for €302.10 each
- from 10 for €289.38 each
- from 25 for €279.84 each
- Spindle pitch 1 mm
- Display accuracy 0.1 mm
| Icon | Label | Description | Type | Size | Download |
|---|---|---|---|---|---|
 | Katalog Positioniersysteme manuell / Catalogue Positioning Systems | 18.6 MB | Download | ||
 | CAD (step) PT4808-PA | zip | 281.8 KB | Download | |
| CAD (step) PT4808-PA-2KH | zip | 357.8 KB | Download |
Function
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The slide of the positioning table can be adjusted linearly by hand by turning the control knob.
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The operator can read the slide position directly on the position indicator with an accuracy of 0.1 mm.
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The indicator can be adjusted and fixed as required relative to the spindle.
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The position indicator is available in 2 designs and can be mounted in 4 positions.
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Due to the preloaded spindle and spindle nut, no clamping is necessary after adjustment.
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The spindle can be additionally fixed in the bearing block with the clamping screw KS-M4X7. (Accessories)
Advantages
No backlash
Spindle nut and spindle bearing are preloaded. This allows the slide to be positioned from either direction without backlash.
Self-locking spindle
Due to the preload, the control knob offers some resistance when turning. This means that the carriage always holds its position securely.
Modular system
The PT4808-PA positioning stage can be easily extended with the other size 08 adjustment units to form a multi-axis system.
Special features
Variable mounting of the position indicator
The position indicator can be rotated 4 x 90° around the spindle axis and fixed. (Picture example "L" left)
Zero position freely selectable
After loosening the clamping screw, the display value can be adjusted independently of the spindle on the red adjustment ring.
Options
Numerical orientation for vertical position of the spindle
The position indicator is also available with 180° rotated (upside down) digits.
Spindle clamping
With the optionally available KS-M4X7 clamping screw, the spindle can be additionally clamped against rotation.
Hand crank instead of rotary knob
The handwheel, which can be ordered as an alternative, has a rotating crank handle and is used to adjust the spindle table more quickly.
Video "Setting the display value"
Combination example
Positioning table long with mechanical position pointer PT4808-PA
Dimensions
Force diagram
Technical data
Load capacity
Precision
Axial clearance: preloaded backlash-free
Radial play of the guide: <0.02 mm
Resolution of the position indicator: 0.1 mm
Dimensions and weight
Travel: 48 mm
Spindle pitch: 1 mm
Mass: 324 g
Operating temperature: 0 °C to 70 °C
Materials
RoHS compliant
Bearing blocks and slides: Anodized aluminum
Guide columns and spindle: stainless steel
Sliding bushes: brass
Position indicator: plastic
Dimensions
PT4808-PA
Order code
PT4808-PA-H-O
PT = Positioning table
48 = Travel 48 mm
08 = Size 8 (Ø guiding rails)
PA = mechanical position indicator
H = Design of the position indicator: Numbers readable with spindle in horizontal position (standard)
O = Mounting position of the position indicator: PA points upwards (standard)
PT4808-PA-V-R-HK63
PT = Positioning table
48 = Travel 48 mm
08 = Size 8 (Ø guiding rails)
PA = mechanischer Positionsanzeiger
V = Design of the position indicator: Numbers readable with spindle in vertical position
R = Mounting position of the position indicator: PA points to the right
HK63 = with hand crank 63mm instead of knob
