This product has been replaced by the following new product: U-751.24 XY Stage with Piezomotors

M-686 XY Stage with Piezoceramic Linear Motors

High Stability and Speed, Low-Profile, Direct Position Measurement

PI M-686 D64 01
Higher stability with selfclamping linear motors
Max. velocity 100 mm/s
Very low profile of only 32 mm, no protruding parts
Travel range 25 × 25 mm
100 nm, optical linear encoders provide excellent repeatability and accuracy

Precision-class XY stage

With fast direct drive. Clear aperture 78 mm × 78 mm, 65 mm × 65 mm at full displacement


PILine® piezo ultrasonic drive

Self-locking, no heat generation at rest. Excellent start / stop dynamics. Flat supporting surface, no lead screw ducts or flange-mounted motors. Crossed roller guide for higher running accuracy and load capacity. Non-contact limit and reference point switches


Direct-measuring principle

Non-contact, direct-measuring, optical linear encoder per axis. High repeatability


Valid patents

US patent no. 6,765,335B2

European patent no. 1267425B1


Fields of application

Research and industry. For microscopy, biotechnology, laboratory automation. Special versions for standard light microscopes available on request


The following stages fit directly


This content is only available on tablets or desktop devices.

Drawings / Images

PI M-686 Drawing



Short Instructions MP121EK

M-66x, M-68x, U-521, U-62x, U-651 PILine® Stages
Version / Date
4.3.0 2017-06-23
pdf - 709 KB

User Manual MP67

M-686 XY Stage with PILine® Piezo Motor Drives
Version / Date
Version / Date
Document language
pdf - 991 KB
pdf - 1 MB