Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. It is the small end of the range, for light-duty precision positioning in a tight envelope — compact stages, small pick-and-place heads and inspection fixtures.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthLong carriage
- Carriages1
- Rail length320 mm
- AccuracyP — precision grade
- PreloadC — medium preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT
LRM12L1X320S10CPT is a complete AirTAC LRM miniature linear guide set: one 320 mm stainless-steel rail, 12 mm wide, carrying a single long recirculating-ball carriage already fitted and greased at the factory. The L in the code is the long carriage body, and the trailing T specifies a bottom-mount rail - the screws are driven from underneath, so no fastener head sits proud on the running face. The C assigns medium preload and the P assigns precision-grade manufacture. Nothing else comes in the box; you supply the mounting screws for your base.
Medium preload removes free play from the ball circuit, so this set suits positions where repeatability outranks the lightest possible drag; the trade-off is higher rolling resistance and a mounting surface that must be ground or finish-milled to hold the grade. Inside the carriage, the balls are Japanese-made ISO 3290 G10 grade, a double-lip seal scrapes oil and excludes dust, and an outer cover shields the seal strip and screw heads. Ambient temperature must stay at or below 80 C, with transient peaks no higher than 100 C - a real constraint next to an oven door or a laser head. AirTAC publishes no load or moment figure for LRM, so we confirm the ratings for this exact model before you order; send the RFQ and we will come back with the numbers.
Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM12 |
| Rail width | 12 mm |
| Carriage length | Long carriage |
| Carriages supplied | 1 |
| Rail length | 320 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | C — medium preload |
| Mounting screws | M2 or M3 rail screws depending on size |
| Lubrication | Pre-filled with Kyodo Yushi PS No. 2; top up through the rear lubrication hole |
| Ambient temperature | Up to 80 °C ambient, 100 °C transient peak |
| Interchangeability | LRM carriages fit LRM rails of the same model |
Specifications follow the official AirTAC LRM catalogue. The catalogue does not publish load or moment ratings, running parallelism, speed limits, or carriage base material for LRM. We will not quote a figure we cannot source — ask us and we will confirm it for your model.
Model Code: Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X320 | 1 carriage on a 320 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 320 mm |
| Carriage | Yes, 1 |
Rail and carriage(s) supplied together, matched as a set. If you are not sure which form you need, send us the machine or the original part number and we will confirm it before you order.
Where the Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT Is Used
Laser module alignment slide
A 320 mm bottom-mount rail carrying one long carriage gives a bench-built laser alignment slide a stable, play-free axis; the medium preload keeps the diode head from drifting between adjustments.
PCB AOI camera stage
On a compact automated-optical-inspection gantry, the precision P grade and long carriage support smooth camera travel across a 320 mm scan of solder joints.
Wafer probe station
A semiconductor probe station gains from the play-free medium preload and the underside mounting, which leaves the running surface flush with the stage plate.
Is the Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT the Right Guide?
Step up to AirTAC LSH when the load becomes substantial or hangs off a cantilever: LSH publishes per-carriage dynamic, static and moment ratings you can plug straight into a sizing calculation, which LRM does not. Step across to LGC when the travel is short and the job needs crossed-roller rigidity rather than ball recirculation. Before committing, tick the checklist: complete set form, 12 mm rail width, long carriage, one carriage, 320 mm rail, medium preload C (accept the extra drag and the stiffer feel), precision P accuracy, bottom-mount rail fixing, and a load rating confirmed with us - there is no published LRM table to check it against yourself.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT FAQ
It is a 12 mm wide stainless-steel rail, 320 mm long, with one long carriage, medium preload (C), precision accuracy (P) and bottom-mount rail fixing. M3 mounting screws take 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium; M2 screws take 58.8 / 39.2 / 29.4 N.cm respectively. Ambient temperature must stay at or below 80 C with peaks to 100 C, and the carriage ships pre-filled with Kyodo Yushi PS No. 2 - re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM; we confirm them for this model before ordering.
Choose LRM when the envelope is tiny and the duty is light - this 12 mm set is about compactness, smooth running and precision-grade travel. Choose LSH when the load is substantial or cantilevered, because LSH publishes basic dynamic, static and moment ratings per carriage that you can size against directly; LRM has no published ratings at all, so nothing can be checked from a table. If you are unsure, send us the load, moment and stroke and we will confirm whether this model holds or whether LSH is the safer pick.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM12L1X320S10CPT
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours. We can also confirm the load and moment rating for this model.