Airtac LRM Miniature Linear Guide LRM12L1X220S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X220S10CPT 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 length220 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 LRM12L1X220S10CPT
LRM12L1X220S10CPT is a complete AirTAC miniature guide built around a 12 mm stainless rail, 220 mm long, with a single long-series carriage pre-mounted at the factory. The T suffix sets bottom-mount fixing: the fasteners pass up through the rail, so it bolts to the underside of a plate or the inside of a channel. One set, greased and ready to run.
Two choices define this SKU. Bottom-mounting hides the fixing screws and suits sealed or snag-prone frames where a proud screw head would catch. Precision accuracy grade P gives tighter control of travel than H - useful when the carriage carries anything that measures. Inside, Japanese ISO 3290 G10 balls (a grade for the balls themselves, not for the assembly) run in a circuit guarded by a double-lip seal and an outer cover strip. The manufacturer caps ambient use at 80 C, peaking to 100 C. Because LRM carries no published load or moment ratings, we verify the numbers for this exact configuration through the RFQ route before you commit.
Airtac LRM Miniature Linear Guide LRM12L1X220S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X220S10CPT |
|---|---|
| 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 | 220 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 LRM12L1X220S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X220 | 1 carriage on a 220 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, 220 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 LRM12L1X220S10CPT Is Used
Wafer-handling micro stage
A small carrier stepping sensor die between stations inside a compact semiconductor test rig.
Short-stroke scanning carriage
Rapid back-and-forth sweeps of a few tens of millimetres for a profilometer stylus or sensor head.
Fiber-optic alignment slide
Nudging a fiber chuck toward a photodiode in fine increments while a power meter watches the coupling.
Is the Airtac LRM Miniature Linear Guide LRM12L1X220S10CPT the Right Guide?
With only one carriage, the rail carries all the guidance, so the mounting surface does the rest: grind or finish-mill the seat, and if you later add a second carriage, keep the datum edge on the same side for both. Heavier or overhung duties belong on LSH, where dynamic, static and moment ratings are published per carriage; short, stiff crosses belong on LGC with its rollers. Order checklist for this code: complete set, 12 mm rail width, long carriage, one block, 220 mm rail, medium preload C, P accuracy, bottom-mount. Confirm the load rating with us before finalising - never assume it from a similar series.
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 LRM12L1X220S10CPT FAQ
Rail width 12 mm, rail length 220 mm with 10 mm end offsets, one long carriage, preload C (medium), accuracy P (precision), bottom-mount. M3 screws torque to 196 N.cm in steel, 127 in cast iron, 98 in aluminium; M2 figures are 58.8, 39.2 and 29.4 N.cm. Ambient limit is 80 C with 100 C transients, and lubrication is due every 100 km of travel or every 3 to 6 months, quantity varying per model. Dynamic load, static load, moment ratings, running parallelism and speed limits are not published for LRM - request confirmation from us for this model.
The rail profile is the same; only the fixing changes. The trailing T in this code means screws enter from below through the rail, which keeps the visible surface clean and suits channels or under-plate fixing, whereas a top-mount set is screwed down from above. Either side of the rail can serve as the datum face. Whichever you choose, the seat must be ground or finish-milled, and the rail should never be struck or dropped - invisible dents still cost accuracy and life.
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 LRM12L1X220S10CPT
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.