Airtac LSH Linear Guide Rail LSH25HN1X900S30AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HN1X900S30AN-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 lengthStandard carriage
- Carriages1
- Rail length900 mm
- AccuracyN — normal grade
- PreloadA — no 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 LSH25HN1X900S30AN-M6
The S30 in LSH25HN1X900S30AN-M6 sets the end-hole offset: the centreline of the first mounting hole sits 30 mm in from each rail end, so check the fixture's drilled pattern before committing. The rest of the code reads as a size 25 set with one standard-length square carriage on a 900 mm rail, no preload (grade A), N accuracy and an M6 grease fitting. The rail is genuinely 23 mm wide; the 25 in the size code is not the width. Four rows of balls in crossed 45 degree arc raceways give the carriage balanced capacity in all four directions and a measure of self-alignment over minor surface faults.
With no internal preload, this set offers the widest installation tolerance in the range: 30 um parallel and 130 um height error are allowed at 500 mm rail spacing, generous next to the 20 um and 70 um that medium preload demands. Ratings stand at 26.9 kN dynamic, 39.4 kN static and 0.44/0.38/0.38 kN.m of moment per carriage. At 900 mm the rail still has 3140 mm of room below the 4040 mm maximum length for size 25, so a longer replacement remains an option if the machine grows.
Airtac LSH Linear Guide Rail LSH25HN1X900S30AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HN1X900S30AN-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 | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 900 mm |
| Basic dynamic load rating C | 26.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 39.4 kN per carriage |
| Allowable static moment | MR 0.44 / MP 0.38 / My 0.38 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no 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 LSH25HN1X900S30AN-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. |
| N | Standard carriage. |
| 1X900 | 1 carriage on a 900 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no 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, 900 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 LSH Linear Guide Rail LSH25HN1X900S30AN-M6 Is Used
Automated pipetting deck
Unpreloaded grade A carriages run with the least breakaway friction, which smooths the start of each aspiration cycle on a liquid-handling deck built on a drilled rather than ground baseplate.
PCB transfer conveyor rail
A 900 mm span carries circuit boards between load and unload stations, and the 30 mm end-hole offset makes the conveyor-frame hole pattern simple to programme on a drill line.
Bottling line reject pusher
Rejected bottles are flicked sideways by a pusher riding this guide, and the 130 um allowable height error at 500 mm spacing means a welded machine frame can be used without surface grinding.
Is the Airtac LSH Linear Guide Rail LSH25HN1X900S30AN-M6 the Right Guide?
Choose preload A when the baseplate is saw-cut, drilled on a general-purpose machine, or otherwise unlikely to hold the few-micron flatness that stiffer preload grades demand - the self-aligning feature absorbs only slight error, and preload narrows what slight means. If vibration and reversing loads later call for rigidity, the same rail accepts a B or C preloaded carriage of the same model without losing its geometry, since LSH carriages and rails of one model interchange. Lighter, more compact duties may drop to LRM (its ratings are unpublished, so we verify them for you), and short-stroke, high-rigidity requests belong with LGC instead. Before ordering: set form; size 25 checked against load and moment; square standard carriage; single block; 900 mm rail with 30 mm end offset; N accuracy; preload A; M6 nipple. Mounting shoulders are H 6.5, H1 5 and H2 5 mm, with a corner radius no greater than 1 mm on the mating surface.
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 LSH25HN1X900S30AN-M6 FAQ
Rate each standard-length square carriage at 26.9 kN dynamic (C) and 39.4 kN static (C0), with moment limits of 0.44 kN.m in MR and 0.38 kN.m in both MP and My. N-grade running parallelism lies between 12 and 37 um over the rail length. Fasten with M6 screws: 1370 N.cm into steel, 921 into cast iron, 686 into aluminium. Charge 3.6 cm3 of Mobilux EP2 or equivalent per carriage initially and top up 1.1 cm3 every 100 km of travel or every 3 to 6 months.
Preload grades buy rigidity but tighten the installation spec. At 500 mm rail spacing this size allows 30 um parallel and 130 um height error with no preload, 22 um and 85 um at light preload B, and 20 um and 70 um at medium C, all scaled to the real spacing. If the base cannot hold the tighter figures, preload A on this set is the correct engineering choice, and a B or C carriage can be fitted later because carriages interchange on rails of the same model.
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1-Year Warranty
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 LSH25HN1X900S30AN-M6
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