Airtac LSH Linear Guide Rail LSH25HL2X1800S30CN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HL2X1800S30CN-M6 is a standard-type profile linear guide on a 23 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
- SizeLSH25
- Rail width23 mm
- Carriage lengthLong carriage
- Carriages2
- Rail length1800 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 LSH25HL2X1800S30CN-M6
This code, LSH25HL2X1800S30CN-M6, specifies a full AirTAC LSH axis: 1800 mm of profile rail with two long square carriages running on it, and mounting holes that begin 30 mm from each rail end - check that offset against your end stops and bellows before finalising the base drawing. Four rows of balls bear on crossed 45 degree arc raceways, two points per ball, spreading load equally in every direction and forgiving slight misalignment of the mounting plane. The size code says 25; the rail itself is 23 mm wide, so cut the clamp-down features to 23 mm geometry.
At 1800 mm this rail uses under half of the series' 4040 mm maximum length, so a longer single-piece rail exists if the machine grows. Ratings per long carriage: 32.9 kN dynamic, 53.0 kN static, and 0.58 / 0.57 / 0.57 kN.m of MR / MP / My. Preload C gives a firm, low-deflection system, but the same preload trims the allowed parallelism error to 20 um and height error to 70 um at 500 mm spacing. Note too that static capacity runs about 1.6 times dynamic here: crash and overload cases are checked against C0, while travel life is checked against C.
Airtac LSH Linear Guide Rail LSH25HL2X1800S30CN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HL2X1800S30CN-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 | LSH25 |
| Rail width | 23 mm (the size code is not the rail width above size 20) |
| Carriage style | Square (compact) |
| Carriage length | Long carriage |
| Carriages supplied | 2 |
| Rail length | 1800 mm |
| Basic dynamic load rating C | 32.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 53.0 kN per carriage |
| Allowable static moment | MR 0.58 / MP 0.57 / My 0.57 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | C — medium preload |
| Mounting screws | M6 — 1370 N·cm into steel, 921 cast iron, 686 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 stocked here; they are available to order.
Model Code: Airtac LSH Linear Guide Rail LSH25HL2X1800S30CN-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 25 | Size code — note the rail is 23 mm wide, not 25 mm. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| L | Long carriage. |
| 2X1800 | 2 carriages on a 1800 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, 1800 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 LSH25HL2X1800S30CN-M6 Is Used
Filling head carrier
A linear transfer on a bottling line: the filler head rides 1800 mm between rinse, fill and cap stations on this set, with the long carriages resisting the tipping moment of an off-axis fill nozzle.
Panel alignment fixture
An automotive sub-assembly fixture where a clamping bridge slides 1800 mm to present door panels to a gauging station; medium preload holds position against clamp reaction forces.
Label applicator head travel
A high-cycle label head traversing a 1800 mm web path: the long carriage spreads the head's overhung weight, and at a 300 mm stroke cycling once per second the 100 km grease interval arrives in roughly two weeks of continuous running - the distance binds well before the calendar.
Is the Airtac LSH Linear Guide Rail LSH25HL2X1800S30CN-M6 the Right Guide?
Choose size 25 only after checking both directions. Downwards: if the load is modest and space scarce, LRM wins on envelope, but its load figures are not published, so we confirm them for your duty before you redesign around it. Upwards: a moment demand beyond the long block's 0.58 kN.m moves you to LSH30, and where travel is short but stiffness is everything, crossed-roller LGC is the better tool. For this SKU the checklist reads: complete set - one 1800 mm rail, two long square carriages, 30 mm end offset; size validated against load and moment together; N accuracy; preload C and the tighter 20 um / 70 um installation window it implies; M6 fitting; matched set, so no pairing code is needed.
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 LSH25HL2X1800S30CN-M6 FAQ
Per long carriage: C 32.9 kN dynamic, C0 53.0 kN static, MR / MP / My 0.58 / 0.57 / 0.57 kN.m. N-grade running parallelism: 12-37 um across the length range. Mounting: M6 screws at 1370 / 921 / 686 N.cm (steel / cast iron / aluminium), shoulder height 6.5 mm with a corner radius of at most 1 mm. Grease: Mobilux EP2 or equivalent, 4.5 cm3 per long carriage at first charge and 1.4 cm3 top-ups, every 100 km of travel or every 3-6 months.
Medium preload raises rigidity and tightens the installation window. At 500 mm rail spacing, LSH25 with preload C tolerates 20 um of parallelism error and 70 um of height error, scaling with real spacing; a base laid out for a no-preload guide (30 um / 130 um) may fall outside this. Pull the rail fully onto its datum face and torque every M6 screw to spec - a rail not seated flat loses most of the accuracy you paid for. If your machined base is marginal, order the same set in the preload B or A variant instead.
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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 LSH Linear Guide Rail LSH25HL2X1800S30CN-M6
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