Yaskawa Sigma Trac II Linear Motor Stages Review: Specs, Price and Applications
Sigma Trac II is Yaskawa’s preassembled linear-motor stage concept, combining motor, feedback and cable management in a mechanically integrated axis. This is a different purchase scope from a bare linear motor. The selected stage size, travel, payload and compatible amplifier determine the useful machine axis.
Quick Verdict
Consider it when a documented assembled stage reduces component integration work. Verify process-point position, force, payload moments and thermal duty. Preassembly does not eliminate machine-base design, controller configuration or loaded acceptance.
Yaskawa Sigma Trac II Linear Motor Stages at a Glance
Specification | Details |
Product class | Preassembled direct-drive linear stage |
Integrated scope | Motor, feedback and cable management in current manufacturer overview |
Family reference | Sigma Trac II / ST2F |
Selection inputs | Travel, moving load/moments, force duty and settling |
Electrical scope | Selected compatible SERVOPACK and host interface |
Machine boundary | Base, fixture, limits and environmental provisions |
Price | Request a quote for complete stage/control scope |
Design and Engineering Assessment
Preassembly shifts motor/guide/feedback assembly toward a defined product. The supporting base can still introduce distortion and structural modes. Compare mounting flatness and stiffness against the actual installation requirements before treating the stage as a bolt-on solution.
Direct drive removes a rotary transmission, while guide friction, cable forces and fixture compliance remain. Include the complete moving fixture and center of gravity in the load and moment calculation, not only the workpiece mass.
Encoder resolution, stage repeatability and machine accuracy are different quantities. Specify the required position at a defined location, travel and temperature. A fine count subdivision does not alone establish the installed process result.
Integrate the Assembled Axis
Specify stage/amplifier identity, power, feedback and host. Include referencing, limits, cable route and full travel envelope in the machine drawing.
Check thermal mounting and environment. Integration convenience does not establish washdown suitability or an unrestricted external process-force capacity.
Accept the Useful Cycle
Verify direction, scaling and references, then tune the actual loaded mechanism. Measure warm-cycle settling and process-point position with representative fixtures.
Retain amplifier settings, feedback scale and calibration. A replacement stage with the same nominal travel may still require alignment and process validation.
Applications and Selection
Industrial linear machinery requiring a configured assembled axis.
For Yaskawa Sigma Trac II Linear Motor Stages, define the actual machine duty before selecting an ordering configuration. Include the required operating point, available installation space, environment and control interfaces. The specification table describes the product or family; the surrounding machine determines which of those features matters for the intended job.
Price and Value
Price: Request a quote for the exact configuration. Compare the product, compatible control equipment, required mechanical parts, cabling and commissioning as one installed system. A component price alone does not represent the cost of a working automation axis.
Evaluate an alternative against the same duty and acceptance criteria. Match the continuous operating requirement first, then compare transient capability, feedback, mechanical fit and support. This avoids choosing between superficially similar products whose ratings describe different operating conditions.
Pros and Cons
Advantages
Defined assembled motor/feedback scope
Direct linear motion platform
Reduces separate component assembly work
Limitations
Base and fixture behavior remain important
Ratings are stage-specific
Controller and environment require explicit selection
Who Should Consider Yaskawa Sigma Trac II Linear Motor Stages?
Consider Yaskawa Sigma Trac II Linear Motor Stages for industrial linear machinery requiring a configured assembled axis. Establish the required operating point and installation interfaces before choosing the configuration, and use a representative loaded cycle as the acceptance basis.
Yaskawa Sigma Trac II Linear Motor Stages FAQ
Is Sigma Trac II a bare motor?
No. The current overview describes an assembled stage with feedback and cable management.
Does preassembly remove base requirements?
No. Mounting stiffness and flatness affect the result.
Is encoder resolution the same as stage accuracy?
No. They describe different properties.
Does maximum payload apply at every offset?
Use the selected force and moment limits.
Is an amplifier always supplied?
Confirm the quotation’s stage and control scope.
Does direct drive eliminate cable drag?
No. The installed moving harness still matters.
What should acceptance measure?
Loaded warm-cycle position, settling and required reference/recovery behavior.
What must be retained for service?
Stage/amplifier identities, feedback scale, alignment, calibration and setup.
Prices are indicative and may change. Confirm the final configuration, commercial terms and delivery schedule before ordering.
