Airtac LSH Linear Guide Rail LSH25HN2X700S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HN2X700S20AN-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 length700 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 LSH25HN2X700S20AN-M6
LSH25HN2X700S20AN-M6 is a complete AirTAC LSH25 guide: a 700 mm rail 23 mm wide (the size code 25 is not the rail width) carrying two standard-length square carriages, no preload, normal accuracy and an M6 fitting per block. Four rows of balls run at a 45 degree contact angle in X-shaped arc raceways, giving the same load capacity in all four directions and letting each carriage absorb slight mounting-surface error internally rather than binding.
It is tempting to size on C0 39.4 kN because it is the bigger number, but dynamic C 26.9 kN is the figure that governs travel life - static sits roughly 1.5 times dynamic right across this range, so treat C0 as the shock and holding limit, not the sizing basis. What actually lifts capacity here is the second carriage: it doubles the moment reach to 0.88 kN.m MR and resists tipping along the 700 mm travel far better than one long block would. At 700 mm the rail sits comfortably inside the 4040 mm maximum length, so a longer run or a spliced two-section rail is a straightforward future step.
Airtac LSH Linear Guide Rail LSH25HN2X700S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HN2X700S20AN-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 | 700 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 LSH25HN2X700S20AN-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. |
| 2X700 | 2 carriages on a 700 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, 700 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 LSH25HN2X700S20AN-M6 Is Used
Pallet labelling traverse
A print-and-apply labeller's applicator pad sweeps 700 mm across pallet faces; the twin blocks carry the pad's offset moment and the grade N accuracy is well within label placement tolerance.
Drilling head slide on a fixture
A multi-spindle drill head traverses between hole patterns on this set; 0.88 kN.m combined MR handles the head's overhang from the spindle motor, and the no-preload setting suits the cast-iron jig base.
Benchtop CNC router Y-axis
A workshop router table uses this 700 mm rail as its Y axis under the spindle plate; the 23 mm rail bolts into routed shoulders with an R under 1 mm, and the M6 fitting reaches for greasing without tearing the machine down.
Is the Airtac LSH Linear Guide Rail LSH25HN2X700S20AN-M6 the Right Guide?
Read the ratings in the right order: dynamic C 26.9 kN for life, static C0 39.4 kN for shocks and clamped holding, and the moment set 0.44 / 0.38 / 0.38 kN.m per carriage - the last usually decides for overhung loads, where this two-block layout or the long LSH25L block (MR 0.58 kN.m, C 32.9 kN) beats adding carriage count alone. Step up to LSH30 (MR 0.66 kN.m) when a single size-up is cleaner than two blocks; step down to LRM for light, compact duties (its load ratings are unpublished, so we confirm them with you); step across to LGC when travel is short and crossed-roller rigidity is the priority. Final checks: form (complete set - rail plus two carriages), size, carriage style and length, count, 700 mm rail length, accuracy and preload with the trade-off stated (medium preload cuts allowable height error at 500 mm spacing from 130 um to 70 um), M6 fitting, and the pairing code if ever ordering a replacement block by itself.
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 LSH25HN2X700S20AN-M6 FAQ
Per carriage: dynamic C 26.9 kN, static C0 39.4 kN, moment limits MR / MP / My of 0.44 / 0.38 / 0.38 kN.m; two carriages double the moment reach. Grade N running parallelism: 12 to 37 um band. Mounting: M6 screws at 1370 N.cm on steel, 921 N.cm on cast iron, 686 N.cm on aluminium, into a 23 mm rail with 6.5 mm shoulders. Lubrication: 3.6 cm3 Mobilux EP2 first charge and 1.1 cm3 top-up per block, re-greased every 100 km or every 3 to 6 months.
The box holds the complete matched set: one 700 mm rail with both square carriages mounted and sliding, plus the bolt caps that must be seated into every screw hole counterbore - tap them flush with a flat plate and a plastic mallet, since caps left standing proud or holes left open let swarf into the ball circuit. A preload certificate, a second rail or a spare carriage are separate order lines; a future spare block must be bought carriage-only against the rail's pairing code.
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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 LSH25HN2X700S20AN-M6
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