Airtac LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6
The AirTAC LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6 is a standard-type profile linear guide on a 28 mm wide rail. Four rows of balls contact X-shaped raceways at a 45° angle, so the guide carries load equally in all four directions and absorbs small mounting errors inside the carriage instead of binding.
- SeriesLSH
- Supplied asComplete guide set
- SizeLSH30
- Rail width28 mm
- Carriage lengthLong carriage
- Carriages2
- Rail length1320 mm
- AccuracyN — normal 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 LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6
The LSH30F1L2X1320S20CN-M6 is a complete linear guide set: one 1320 mm profile rail carrying two long top-flange (F1) carriages, each delivered pre-filled with Mobilux EP2 and fitted with an M6 side tube fitting. Four rows of recirculating balls run in X-arranged arc raceways at a 45 degree contact angle, so the guide takes equal load up, down and sideways, and slight mounting-surface error is absorbed inside the carriage instead of turning into bind. The true rail width is 28 mm, not 30, so cut the mounting shelf to 28 mm.
Per long carriage: 45.7 kN basic dynamic C, 73.1 kN static C0, and static moments of MR 0.88, MP 0.91, My 0.91 kN.m. Versus the standard LSH30 carriage, MR rises about 33 percent for only 22 percent more dynamic rating, which makes the long carriage the cheaper route to moment capacity than a size step up. Medium preload C stiffens the pair, but it narrows the installation window: at 500 mm rail spacing the allowable height error S falls from 170 um to 90 um and parallelism P from 40 um to 27 um, so the datum faces must be machined and the M8 screws pulled to 3040 N.cm in steel.
Airtac LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH30 |
| Rail width | 28 mm (the size code is not the rail width above size 20) |
| Carriage style | Flange, top mounting |
| Carriage length | Long carriage |
| Carriages supplied | 2 |
| Rail length | 1320 mm |
| Basic dynamic load rating C | 45.7 kN per carriage |
|---|---|
| Basic static load rating C0 | 73.1 kN per carriage |
| Allowable static moment | MR 0.88 / MP 0.91 / My 0.91 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | C — medium preload |
| Mounting screws | M8 — 3040 N·cm into steel, 2010 cast iron, 1470 aluminium |
| Lubrication | Pre-filled with Mobilux EP2; re-grease every 100 km of travel or every 3–6 months |
| Interchangeability | LSH carriages fit LSH rails of the same model |
Specifications follow the official AirTAC LSH catalogue. The catalogue page does not state the carriage or rail base material. Sizes 35 and 45 exist in the catalogue but are not listed here; they are available to order.
Model Code: Airtac LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 30 | Size code — note the rail is 28 mm wide, not 30 mm. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| L | Long carriage. |
| 2X1320 | 2 carriages on a 1320 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. |
| N | N — normal grade. |
| -M4 / -M6 / -A01… | Grease nipple or tube-fitting type. Restricted by size: size 15 the M4 family, 20–35 the M6 family, 45 the PT1/8 family. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 1320 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 LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6 Is Used
CNC router crossbeam
One 1320 mm rail under the beam of a CNC router carries two long F1 carriages; medium preload C stops the beam rocking under side cutting loads so climb milling passes leave an even finish.
Pallet lift station
A lift head that hangs off the rail axis is a moment problem, and the long carriage's 0.88 kN.m MR plus the second carriage's anti-tip support handle it where a single standard carriage would run out of rating.
Multi-spindle drilling gantry
Drilling heads on a shared beam generate alternating vertical and side loads; preload C keeps the beam seated, and the flange faces index against machined shoulders of H 6.5 mm with a corner radius of 1 mm maximum.
Is the Airtac LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6 the Right Guide?
Size this set by moment first. Two long carriages share the beam load and resist tipping along the travel, which is exactly what a wide crossbeam needs; a single standard carriage at MR 0.66 kN.m would be the weak link. If the duty is lighter and the envelope smaller, step down to AirTAC LRM - its load ratings are not published, so ask us to confirm them for your duty. Where travel is short and the job wants crossed-roller rigidity rather than long recirculating travel, step across to LGC. If a standard LSH30 or even this long carriage still runs out of moment, LSH35 is available to order. Match checklist: form (this complete set, or BK carriage-only / RLX rail-only codes), size by load AND moment, carriage style and length, carriages per rail and rail length, accuracy and preload weighed against the mounting tolerance you can actually hold, grease fitting by size family, and the pairing code off the original part if you are replacing rather than building.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Worst-case moment, not just straight load
- ✓ 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 LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6 FAQ
Per long carriage: dynamic C 45.7 kN, static C0 73.1 kN, static moments MR 0.88, MP 0.91 and My 0.91 kN.m. Running parallelism for accuracy grade N is 12-37 um across the rail length bands. Fix the rail with M8 screws at 3040 / 2010 / 1470 N.cm on steel, cast iron and aluminium. Each long carriage takes 7.2 cm3 of Mobilux EP2 first charge and 2.2 cm3 top-up; re-grease every 100 km of travel or every 3 to 6 months, whichever comes first.
Rigidity is not free. At 500 mm rail spacing, scaled to your actual spacing, a preload-C LSH30 tolerates 27 um parallelism error P and 90 um height error S between rails, against 40 um and 170 um with no preload. The datum faces must be machined, the rail pulled flat and the M8 screws torqued correctly, otherwise the preload becomes binding rather than stiffness. Within those limits the carriage self-alignment absorbs the remaining slight error.
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Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LSH Linear Guide Rail LSH30F1L2X1320S20CN-M6
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