Airtac LRM Miniature Linear Guide LRM12L1X345S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X345S10CH 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 length345 mm
- AccuracyH — high 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 LRM12L1X345S10CH
This SKU, LRM12L1X345S10CH, is a complete set: a 345 mm rail, 12 mm wide in stainless steel, carrying one long carriage. The C in the code is the preload grade - medium preload, the firmest fit offered on LRM - and H is high accuracy, one step looser on geometry than the P grade. It bolts down from the top; there is no trailing T.
Medium preload is chosen when a mechanism must not wobble: the carriage runs with less internal clearance, so play at a nozzle, probe or sensor is reduced - the trade-off being slightly higher running resistance than the B grade. The long body carries more recirculating balls over a longer span, which further steadies any tipping motion. The balls are ISO 3290 G10, Japanese-made - a statement about the balls only, not the guide assembly. Expect the double-lip seal and outer cover to hold off dust and chips, and keep ambient temperature at or below 80 C, peaking to 100 C. No load or moment rating is published for LRM; ask us and we confirm the figure for this model.
Airtac LRM Miniature Linear Guide LRM12L1X345S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X345S10CH |
|---|---|
| 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 | 345 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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 LRM12L1X345S10CH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X345 | 1 carriage 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. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 345 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 LRM12L1X345S10CH Is Used
Glue-bead dispensing head
A light syringe head tracing adhesive paths on small enclosures. Medium preload C takes up the play that would otherwise let the nozzle wander at direction changes.
Flat-cable routing slider in a test rack
A carrier sweeping a ribbon cable across an electronics test rack. The long carriage holds the cable clamp square, and 345 mm of rail gives a generous sweep in a slim profile.
Vial labeling head on a benchtop line
Short batches of vials labeled one at a time need a light, accurate slide rather than a heavy conveyor guide. The 12 mm rail drops straight into a compact benchtop frame.
Is the Airtac LRM Miniature Linear Guide LRM12L1X345S10CH the Right Guide?
Firmness versus ease is the decision here: preload C runs tighter and resists play, preload B runs freer - pick C when backlash at the tool matters more than a low drag force. If the load is substantial or overhangs the carriage, switch to LSH, whose published per-carriage dynamic, static and moment ratings support a real sizing calculation that LRM cannot. For short travels where crossed-roller rigidity beats ball smoothness, LGC is the across-range alternative. Before ordering, run the checklist: set form, 12 mm rail width, long carriage, single block, 345 mm rail, preload C, accuracy H, top-mount fixings - and get the load rating confirmed with us.
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 LRM12L1X345S10CH FAQ
12 mm rail width, 345 mm rail length, one long carriage, preload C (medium), accuracy H (high), top-mount rail. Prepare a ground or finish-milled mounting face; when two or more carriages share a rail, keep the datum edge on the same side for all of them. Catalogue torque: M3 screws 196 N.cm steel, 127 cast iron, 98 aluminium; M2 screws 58.8, 39.2, 29.4 N.cm. Ambient temperature must not exceed 80 C, with peaks to 100 C. Grease charge is Kyodo Yushi PS No. 2, renewed every 100 km or every 3 to 6 months. Load and moment ratings are not published for LRM - confirmed per model on request.
LRM is a common-rail design, so other LRM12 carriages share the same 12 mm rail profile, and fitting a second block is one way to resist tipping along the travel. Carriage-only parts are ordered separately with a pairing code, and our carriage-only stock is thin, so treat an extra carriage as an order item rather than an off-the-shelf spare.
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 LRM12L1X345S10CH
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.