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AMSABS 3L – the product for all lengths – is now possible thanks to the mechanical and metrological precision of the measuring rail assemblies. The special design of the rail joints combined with the AMSABS 3L read head means that the joints can be traversed and measuring axes of any length can be constructed.
Frequently Asked Questions about the AMSABS System from SCHNEEBERGER
Is a calibration required after installing an AMSABS system?
After installation, the absolute position is immediately available once the read head is mounted.
Does the exact absolute position need to be restored when replacing components in the AMSABS system?
When replacing read heads, there may be minimal deviations of a few tenths of a millimeter. To achieve more precise values, adjustments to the control parameters should be made.
Does the installation of the AMSABS read head require special alignment?
Precise alignment of the read head is not required, as it only needs to be secured with the screws provided.
How does the signal period of 200 µm affect the accuracy of the AMSABS measuring system?
The periodic measurement deviation is less than 0.6 µm.
How long does the battery of the AMSABS system last when the machine is turned off and the axis is moving?
When the machine is stationary, the battery lasts about 2.5 years. In single-shift operation, the lifespan is approximately 5 years, while in three-shift operation, when only needed on weekends, the battery lasts around 8 years.
Does the AMSABS system have limitations due to external fields from motors or rotary tables?
The AMSABS scale is well-protected within the rail, so external fields are neutralized by the rail and surrounding materials, having no impact on the scale.
What should be considered when using linear motors with the AMSABS system?
To ensure that magnetic fluxes from tools or chip nests do not interfere with the scale, the scale is mounted on the side opposite to the linear motor.
What are the installation guidelines for the AMSABS system?
AMSABS rails should not be installed using magnetic lifting tools to avoid residual magnetism in the rail.
What accessories are compatible with the AMSABS system?
All components of the MONORAIL MR and MONORAIL BM can be used with the AMSABS system; however, sheet metal wipers are not available in the standard program.
After installation, the absolute position is immediately available once the read head is mounted.
Does the exact absolute position need to be restored when replacing components in the AMSABS system? //
When replacing read heads, there may be minimal deviations of a few tenths of a millimeter. To achieve more precise values, adjustments to the control parameters should be made.
Does the installation of the AMSABS read head require special alignment? //
Precise alignment of the read head is not required, as it only needs to be secured with the screws provided.
How does the signal period of 200 µm affect the accuracy of the AMSABS measuring system? //
The periodic measurement deviation is less than 0.6 µm.
How long does the battery of the AMSABS system last when the machine is turned off and the axis is moving? //
When the machine is stationary, the battery lasts about 2.5 years. In single-shift operation, the lifespan is approximately 5 years, while in three-shift operation, when only needed on weekends, the battery lasts around 8 years.
Does the AMSABS system have limitations due to external fields from motors or rotary tables? //
The AMSABS scale is well-protected within the rail, so external fields are neutralized by the rail and surrounding materials, having no impact on the scale.
What should be considered when using linear motors with the AMSABS system? //
To ensure that magnetic fluxes from tools or chip nests do not interfere with the scale, the scale is mounted on the side opposite to the linear motor.
What are the installation guidelines for the AMSABS system? //
AMSABS rails should not be installed using magnetic lifting tools to avoid residual magnetism in the rail.
What accessories are compatible with the AMSABS system? //
All components of the MONORAIL MR and MONORAIL BM can be used with the AMSABS system; however, sheet metal wipers are not available in the standard program.
What is new?
Absolute displacement measurement on particularly long axes - this is only possible with the new developed AMSABS 3L system from SCHNEEBERGER. Referenced once, the measuring carriage is able to permanently able to transmit the absolute position permanently and over the entire length of the measuring axis. Even after switching the power supply off and on again, this is retained.
Proven advantages of AMSABS products:
- Reading head easily exchangeable from the side
- Robust welded, fluid-tight housing of the sensor to IP67
- Exchangeability of the reading head without adjudement
- One reading head for all sizes
We have added the following additional features to simplify the operation of distance measuring systems in industrial environments:
- extremely short delivery times for rails with integrated absolute measuring system
- Low logistics costs for the realization of long machine axes
- Full exchangeability of all rail segments
- Axes are extendable to any length with using system rails
More information:
Link to press release
Product overview AMSABS 3L carriages
Technical data and options
Dimensions and capacities
Links to the following sizes:
AMSABS 3L 25 Integrated absolute distance measuring system for long axes
AMSABS 3L 30 Integrated absolute distance measuring system for long axes
AMSABS 3L 35 Integrated absolute distance measuring system for long axes
AMSABS 3L 45 Integrated absolute distance measuring system for long axes
AMSABS 3L 55 Integrated absolute distance measuring system for long axes
AMSABS 3L 65 Integrated absolute distance measuring system for long axes
Various lubrication and sealing options for the measuring carriages enable optimum adaption to the requirements of the application. The simply changeable reading head is identic for all sizes.
Product overview of AMSABS 3L carriages
Product overview AMSABS 3L rails
Technical data and options
Dimensions and capacities
Links to the following sizes:
AMSABS 3L 25 Integrated absolute distance measuring system for long axes
AMSABS 3L 30 Integrated absolute distance measuring system for long axes
AMSABS 3L 35 Integrated absolute distance measuring system for long axes
AMSABS 3L 45 Integrated absolute distance measuring system for long axes
AMSABS 3L 55 Integrated absolute distance measuring system for long axes
AMSABS 3L 65 Integrated absolute distance measuring system for long axes
With MONORAIL AMSABS 3L SCHNEEBERGER provides an integrated absolute distance measuring system especially for the design of long axes with high requests on system accuracy. Mechanically the AMSABS 3L is based on the SCHNEEBERGER roller guideway MONORAIL MR. The particular realization of the rail butt joints in combination with the AMSABS 3L reading head enables to run over joints an to build absolute coded measuring axes of any length. For the controller the absolute interfaces SSI, SSI+1Vpp and Fanuc are available with different cable lengths.
Product overview of AMSABS 3L rails
Downloads








Assembly instructions for SCHNEEBERGER MONORAIL carriages
Assembly instructions for SCHNEEBERGER read heads
Press release AMSAB 3L

Features
- Extremely short delivery times for rails with integrated absolute measuring system.
- Low logistics costs for the realization of long machine axes.
- Full exchangeability of all rail segments.
- Axes are extendable to any length with using system rails.
Customer Hotline for integrated measuring system

SCHNEEBERGER offers a comprehensive spectrum of services such as repairs, maintenance as well as technical support
- Languages : German and English
- In Europe
- Monday - Friday: 08:00-12:00 / 13:00-16:00
UTC +1, UTC +2 (March-October) Service
SCHNEEBERGER GmbH
Höfen, Germany
Hotline +49 (0)7081 782 272
Fax +49 (0)7081 782 124