Airtac LRM Miniature Linear Guide LRM12L2X345S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X345S10CP is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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
- Carriages2
- Rail length345 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 LRM12L2X345S10CP
LRM12L2X345S10CP is a complete AirTAC miniature linear guide set. The box holds one 12 mm wide stainless-steel rail, cut 345 mm long with a 10 mm end-hole offset, and two long-series recirculating-ball carriages already seated on it. The code closes with C for medium preload and P for precision accuracy, and the rail mounts from the top. Bolt the rail down, torque the screws, and the guide is ready to run.
Medium preload is the stiffest grade LRM offers: the balls run under a slight internal squeeze, which takes the play out of the travel and firms up positioning feel, in exchange for a little more running drag and a lower tolerance of imperfect mounting surfaces. The long carriage spreads whatever load there is over more balls and a longer bearing span, so an overhung tool sees a steadier platform than a short block would give. Design points on this model: the common LRM rail profile, ball retention that keeps the ISO 3290 G10 Japanese-made balls captive during handling (a ball grade only, not a standard for the assembly), a double-lip seal, and an outer cover over the screw line. Ambient temperature must stay at or below 80 C, with peaks no higher than 100 C. Load and moment ratings are not published for LRM - send the RFQ and we confirm the figures for this exact model.
Airtac LRM Miniature Linear Guide LRM12L2X345S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X345S10CP |
|---|---|
| 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 | 2 |
| Rail length | 345 mm |
| 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 LRM12L2X345S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X345 | 2 carriages on a 345 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, 345 mm |
| Carriage | Yes, 2 |
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 LRM12L2X345S10CP Is Used
Die-bonder XY stage
In semiconductor assembly, a compact XY stage positioning small dies under a bond head suits a 12 mm miniature rail: short, light strokes with the precision P grade keeping travel repeatability where the process needs it.
Optical inspection slide
A microscope camera slide in an electronics inspection fixture benefits from the preload-C stiffness: no perceptible play when the stage reverses, so the image does not wander between passes.
Pipetting head axis
Laboratory automation such as a multichannel pipetting gantry uses light loads and short travel; the long carriages give the head a wider, more stable footing across the 345 mm span.
Is the Airtac LRM Miniature Linear Guide LRM12L2X345S10CP the Right Guide?
Size this series honestly. If the load is substantial or hangs off a cantilever, move up to LSH: that series publishes per-carriage dynamic, static and moment ratings you can calculate against, which LRM does not. If the travel is short and the priority is crossed-roller rigidity, LGC is the closer fit. Before committing, check every box: complete set, 12 mm rail width, long carriage, two blocks, 345 mm rail, C medium preload (accepting the drag and the stricter alignment demand it brings), P precision accuracy, top-mount rail - and confirm the load rating with us for the specific model.
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 LRM12L2X345S10CP FAQ
Rail width 12 mm; rail length 345 mm; two long carriages; medium C preload; precision P accuracy; top-mount rail with a 10 mm end-hole offset. Torque M3 mounting screws to 196 N.cm in steel, 127 N.cm in cast iron or 98 N.cm in aluminium, into a ground or finish-milled surface. Ambient temperature limit is 80 C, transient peaks 100 C. Re-grease with Kyodo Yushi PS No. 2 every 100 km of travel or every 3 to 6 months through the rear lubrication hole. Basic dynamic, static and moment ratings are not published for LRM - we confirm them for this model before ordering.
LRM wins on envelope: a 12 mm rail with two long carriages fits where the larger LSH body will not. LSH wins on sizing confidence, because its catalogue lists dynamic, static and moment ratings per carriage, while LRM publishes none - so with LRM you confirm the rating with us per model. For heavy or cantilevered loads, choose LSH; for light-duty precision in a tight space, LRM12 with medium preload and precision accuracy is the stronger 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 LRM12L2X345S10CP
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.