A useful starting point for
- Optical and instrument positioning with a defined reference datum.
- Dispensing, alignment and calibration mechanisms that need a repeatable approach to a target.
Configuration & OEM engineering
Precision Linear Servo Actuators
Specify precision at the point that matters
Precision linear servo actuators should be evaluated against a defined positioning task. Command resolution, repeatability and absolute accuracy answer different questions. A fine encoder increment cannot compensate for an undefined measurement reference, a flexible fixture or a reversing load that changes the output position.
Request the applicable drawing / CAD revisionThis is a configuration review, not a stocked SKU listing. Ratings, documentation availability, sample scope and lead time are confirmed for the reviewed design.
The first design decision
Which positioning error must stay within tolerance, at what load, direction and temperature?
Define these boundaries
- Encoder counts and microstep increments are not statements of system positioning accuracy.
- Fixture compliance, thermal drift, off-axis loading and measurement uncertainty belong in the error budget.
Configuration choices and required evidence
Use this matrix to compare candidate configurations. Entries describe decisions to make and evidence to request; they are not unverified product ratings.
| Design input | Options to review | Evidence for the decision |
|---|---|---|
| Performance definition | Accuracy, unidirectional repeatability or bidirectional repeatability | Measurement method, travel positions, number of repeats and approach direction. |
| Feedback reference | Motor encoder, output linear scale or external instrument | Reference datum, resolution, calibration and position after power cycling. |
| Transmission behavior | Preload and backlash management subject to design review | Reversal traces at representative axial load; permitted friction and heat. |
| System integration | Guidance, fixture stiffness and thermal stabilization | Sensor location, mounting torque, cable forces and environmental test conditions. |
Agree on prototype acceptance before sampling
- 01
Write an error budget
Allocate permissible error to the mechanism, sensor, mounting and thermal conditions. Keep the required tolerance distinct from a proposed encoder resolution.
- 02
Agree on a repeatable test
Define target positions, direction changes, speed, load and dwell before measurement. Identify the external measurement reference and its uncertainty.
- 03
Check reference recovery
Test homing, power cycling and recovery from a motion fault. Confirm whether the machine can safely re-establish its coordinate system.
Define the inspection and release package before fixing the sample acceptance criteria.
A practical engineering handoff
Prepare your precision linear servo actuators RFQ
Copy or download this editable text checklist, fill in the operating conditions and send it for review. For confidential drawings, agree on an exchange method and confidentiality terms first. The website form accepts text; it does not upload CAD.
Engineering RFQ — Precision Linear Servo Actuators Source: https://minilinearactuators.com/products/precision-linear-servo-actuators To: [email protected] Company / contact: Application and project stage: Position tolerance and whether accuracy or repeatability: Measurement datum and output measurement location: Stroke, approach directions and loaded speed: Axial / side loads and fixture stiffness: Feedback interface and power-cycle behavior: Temperature range, settling time and acceptance method: Required drawings / CAD format and revision: Sample quantity / estimated production quantity: Target milestone: Requirements checklist only. Configuration, documentation availability, acceptance criteria and commercial terms require review.
Email the checklist →
Engineering FAQ
Can I choose an actuator by encoder resolution?
Resolution is one input. Specify the maximum position error at the working point, the load and approach direction, then review sensor resolution alongside transmission behavior, structural compliance and the measurement method.
Is bidirectional repeatability relevant to my application?
It matters when the same target is approached from both directions. If your process always approaches from one direction, state that explicitly and still evaluate how the reference is recovered after a fault or power cycle.
Are micron-level specifications available?
Any numerical positioning commitment must be tied to a released configuration and an agreed test. Send the tolerance, travel, load and measurement conditions for feasibility review; this page does not publish an unverified accuracy rating.
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Published and reviewed · Mini Linear Actuators engineering content