Low-backlash micro linear motion for analyzers, dispensers, optical stages, and compact test fixtures.
Lab automation buyers should focus on repeatability, short-stroke smoothness, lubricant behavior, and packaging cleanliness. A micro roller screw is usually justified when lead screws drift too much or ball screws cannot meet life, stiffness, or package constraints.
Define commanded resolution, repeatability target, backlash allowance, and lead-error acceptance before selecting the screw family.
Risk if missed: The wrong lead or preload strategy can create control tuning problems even when the axis moves successfully.
Share stroke length, dwell time, cycle rate, orientation, and lubrication restrictions.
Risk if missed: Short travel can starve contact zones and create stick-slip if the lubricant and preload are chosen separately.
Specify particle limits, packaging method, and incoming handling requirements for analyzer or optical systems.
Risk if missed: A mechanically acceptable sample can be rejected by contamination or handling rules.
| Evaluation Metric | Typical Range | Buyer Relevance |
|---|---|---|
| Motion Control Focus | Low backlash / fine lead / clean lubrication | Reduces positioning drift and rework in compact analytical instruments. |
| Capability | Evidence | Buyer Value |
|---|---|---|
| Fine lead and low-backlash control | Lead accuracy chart, axial play report, preload torque record, and surface finish inspection. | Supports positioning repeatability and smooth low-speed motion in compact axes. |
| Cleanliness-aware sample planning | Lubrication, cleaning, and packaging assumptions documented before sample dispatch. | Reduces test interruptions caused by particle, grease, or handling mismatches. |
| Application-specific DFM | Interface review for motor, bearing support, stage housing, and service access. | Helps automation teams avoid redesign when the screw moves from bench fixture to instrument enclosure. |
Step 1
Resolution, repeatability, load, stroke, lubricant, and package constraints mapped to product family.
Acceptance: Engineering confirms the selected architecture fits the instrument motion profile.
Step 2
Sample screw with lead, backlash, surface finish, preload, and cleanliness notes.
Acceptance: Axis test confirms smooth low-speed motion and acceptable repeatability.
Step 3
Controlled lot with inspection criteria, packaging method, and supplier feedback path.
Acceptance: Pilot instruments pass incoming inspection and no screw-driven rework remains.
Yes. Define cleanliness class, lubricant restrictions, and packaging requirements during RFQ so they are included in the control plan.
Ultra-micro RV designs suit compact axes and dispensers; recirculating or high-stiffness designs suit fine-resolution stages where stiffness and repeatability dominate.
Inquiry Email
Please include screw type, diameter, lead, stroke, load, drawings, STEP files, and quantity timeline.
NDA signing supported prior to drawing uploads.
Instant Chat
+86 18857971991Quick clarification for drawings, sample photos, and lead-time checks. Complete RFQs are usually triaged within one business day.
