X-axis steel stage

X-Axis (Precision) Steel Stage
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This is a highly durable linear motion stage with a hardened steel stage body and direct guide processing on the moving table.

Manufactured by Opto Sigma
Current Product: X-Axis Steel Stage / TSD-801SDM - ￥68,400
Current Homepage: https://jp.optosigma.com/ja_jp/manual-stages/x-axis-translation-stages/x-axis-steel-extended-contact-translation-stages-tsd/tsd-801sdm.html
Original Name/Model Number: X-Axis Precision Stage: Σ 213S - (2) - ￥71,000
Used item, approximately 35 years old. (Used for about 2 years and then stored in a warehouse.)

The dimensions and hole arrangement are almost the same as the current product, but I will highlight the differences (marked with ●). Items without a ● mark have the same specifications.
The current product has fewer holes.
Specifications not listed in the original product's specs could not be written below.
Please compare with the specifications on the current homepage.

Table Surface Size: 80 x 80 mm
Axis Type: X-Axis
Micrometer Operation Position: Side
●Travel Range: ±7.5 mm (Current Product: ±6.5 mm)
Travel per Revolution: Coarse: 0.5 mm / Fine: 0.025 mm
Micrometer Minimum Reading: Coarse: 0.01 mm / Fine: 0.0005 mm
●Travel Guide: V-groove rail and pole (Current Product: Ball)
Main Material: Iron (ST)
Surface Treatment: Super Black Chrome (SBCr)
●Load Capacity: 5 kgf (Current Product: 50.0 kgf)
●Travel Accuracy (Straightness): 0.003mm (Current Product: 0.5 μm)
Travel Accuracy (Pitching): 25″
Travel Accuracy (Yawing): 15″
●Mass: 2 kg (Current Product: 0.9 kg)