Airtac LRM Miniature Linear Guide LRM12L2X320S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X320S10CP 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 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 LRM12L2X320S10CP
LRM12L2X320S10CP is a complete AirTAC LRM miniature linear guide set: one 320 mm stainless-steel rail, 12 mm wide, carrying two long recirculating-ball carriages. The code fixes medium preload (C) and precision accuracy (P), with the rail drilled for top-mounting and the first end hole offset 10 mm from the rail end. Rail and carriages arrive assembled, greased and ready to bolt down.
Medium preload stiffens the carriage against play, and the long body spreads contact over a longer ball row - a combination aimed at measuring and light-duty axes where tilt must stay small. The trade-off is a less forgiving fit: prepare the seat by grinding or finish milling before torquing the rail down, with either rail edge usable as the datum face. Inside, the balls are Japanese-made to ISO 3290 G10, a grade governing the balls alone; the double-lip seal and outer cover keep grease in and debris out. AirTAC publishes no load or moment rating for LRM, so we confirm the figures for this exact model before you order - send the RFQ. Ambient temperature must stay at or below 80 C, with transient peaks to 100 C.
Airtac LRM Miniature Linear Guide LRM12L2X320S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X320S10CP |
|---|---|
| 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 | 320 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 LRM12L2X320S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X320 | 2 carriages 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, 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 LRM12L2X320S10CP Is Used
Semiconductor die inspection stage
A compact inspection stage carrying a camera or probe across a 320 mm sweep above a wafer tray; the two long blocks keep the head square to the die row at precision grade.
0402 component pick-and-place head
A light gantry head placing 0402 passives on PCB panels; the 12 mm rail fits a slim beam and medium preload limits play at each pick point.
Compact XY laser-marking slide
The shorter axis of a small laser-marking module, where a 320 mm stroke covers coupon-sized parts and the stainless rail shrugs off workshop dust behind its double-lip seals.
Is the Airtac LRM Miniature Linear Guide LRM12L2X320S10CP the Right Guide?
If the load is substantial or hangs off a cantilever, step up to LSH: that series publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not offer. If the travel is short and the priority is crossed-roller rigidity, LGC is the better lateral choice. Before committing, work the checklist: form (complete set), 12 mm rail width, long carriage, two blocks, 320 mm rail length, medium preload with its stiffer-but-tighter installation fit, precision P accuracy, top-mount drilling, and a confirmed load rating from us. Since rail length rather than rail width drives the price of stocked sets, trimming the 320 mm down to the travel you truly need is the cheapest way to cut cost.
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 LRM12L2X320S10CP FAQ
This set is a 12 mm wide stainless rail, 320 mm long, with two long carriages, medium preload (C), precision accuracy (P) and top-mount rail fixing; the first end hole sits 10 mm from the rail end. Fasten with M2 or M3 screws at 58.8 or 196 N.cm into steel, 39.2 or 127 N.cm into cast iron, 29.4 or 98 N.cm into aluminium. Carriages arrive pre-filled with Kyodo Yushi PS No. 2 grease; re-grease every 100 km of travel or every 3 to 6 months, and keep ambient temperature at or below 80 C. AirTAC publishes no load or moment rating for LRM - we confirm it per model before ordering.
Choose LRM when the envelope is tight and the duty is light positioning; choose LSH when the load is heavy or cantilevered, because LSH publishes dynamic, static and moment ratings per carriage that you can plug straight into a sizing calculation. LRM offers no published ratings, so we verify capacity for the specific model. This set's medium preload and precision grade suit axes where eliminating play matters more than raw capacity.
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 LRM12L2X320S10CP
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.