Airtac LSH Linear Guide Rail LSH25HN2X950S25AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HN2X950S25AN-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
- Carriages2
- Rail length950 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 LSH25HN2X950S25AN-M6
A 950 mm rail with a 25 mm end-hole offset and two square standard-length blocks: this LSH25 assembly is ordered as one code and delivered as one matched axis. The carriage rides on four recirculating ball rows whose raceways cross at 45 degrees, giving two contact points per ball, identical capacity in thrust, lift and side directions, and self-alignment that soaks up small seat errors. Watch the datum: 23 mm true rail width on the LSH25 section, whatever the 25 in the code suggests.
Service planning matters more than buyers expect on a run this long. Each carriage holds 3.6 cm3 of Mobilux EP2 and needs a 1.1 cm3 top-up every 100 km of travel or every 3 to 6 months - at a 300 mm stroke cycling once per second, 100 km passes in roughly two weeks of continuous running, so the distance binds before the calendar. Ratings per carriage: 26.9 kN dynamic, 39.4 kN static, 0.44 / 0.38 / 0.38 kN.m moment. The rail is N grade (12-37 um parallelism band) and LSH25 tops out at a 4040 mm maximum length, so a future line extension has 3090 mm of headroom above this 950 mm cut.
Airtac LSH Linear Guide Rail LSH25HN2X950S25AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HN2X950S25AN-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 | 2 |
| Rail length | 950 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 LSH25HN2X950S25AN-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. |
| 2X950 | 2 carriages on a 950 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, 950 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 LSH25HN2X950S25AN-M6 Is Used
Bench-top plasma cutter gantry
A light plasma gantry rarely exceeds 60 m/min, the ceiling where grease lubrication still does the job without cooling; the twin blocks keep the torch carriage level across the 950 mm bridge span.
Case-erector pusher rail
Carton-pushing arms take repeated side shocks at the case flap; preload-free mounting tolerates a fabricated welded frame, and the 39.4 kN static rating absorbs the impact per carriage.
Sample-plate shuttle in an autosampler
Analytical autosamplers shuttle plates on slow, gentle strokes; N accuracy and the 23 mm-wide section keep the envelope tight, and the M6 nipple reaches the carriage without dismantling the housing.
Is the Airtac LSH Linear Guide Rail LSH25HN2X950S25AN-M6 the Right Guide?
Grease access decides more installations than load does: the M6 side fitting on this size-25 carriage belongs to the M6 family that covers sizes 20 to 35, and side nipples are not recommended on flange carriages - the square H block here takes it cleanly. Size check: if payload rather than stiffness dominates, the duty simply splits across two carriages rated 26.9 kN dynamic each; if a cantilever governs, compare the LSH25 long carriage (0.58 kN.m MR) or LSH30 (0.66 kN.m) before adding count. Compact light-duty machines should look at LRM, whose ratings we confirm per application because none are published; short-travel stiff slides fit LGC. Order checklist: complete-set form, size by load and moment, square standard carriage, two blocks, 950 mm rail with 25 mm offset, N accuracy, preload A, M6 fitting. Separate carriage and rail orders need a shared pairing code; this set is factory-matched.
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 LSH25HN2X950S25AN-M6 FAQ
Per standard LSH25 carriage: C 26.9 kN dynamic, C0 39.4 kN static, moments MR 0.44 / MP 0.38 / My 0.38 kN.m. N-grade running parallelism spans 12-37 um over the 950 mm rail. Mount with M6 screws at 1370 N.cm (steel), 921 (cast iron) or 686 (aluminium). Grease is Mobilux EP2, 3.6 cm3 initial and 1.1 cm3 per top-up, renewed every 100 km of travel or every 3-6 months.
Yes - LSH carriages are interchangeable within the same model, so any LSH25 square standard carriage will run on this 950 mm rail and keep its preload, accuracy and smoothness. The spare is ordered as a carriage-only code (LSH25BK...) and those codes carry a pairing letter that must match the rail's; if you only have this set code, send it with your enquiry and we will match the spare to it. A carriage-only part typically costs around a quarter of a complete set, so replacing a worn block against a sound rail is usually the economic repair.
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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 LSH25HN2X950S25AN-M6
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