Airtac LSH Linear Guide Rail LSH25HN2X3000S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HN2X3000S20AN-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 length3000 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 LSH25HN2X3000S20AN-M6
Three metres of hardened profile rail in one piece: LSH25HN2X3000S20AN-M6 is a complete size 25 LSH set with two square standard carriages running on a 3000 mm rail, 20 mm end-hole offset, no preload, normal accuracy, M6 fittings. LSH25 rails measure 23 mm wide, and the catalogue maximum for this size is 4040 mm, so 3000 mm leaves 1040 mm of headroom to lengthen the stroke later without changing series. Four rows of balls at 45 degree contact in X-shaped arc raceways carry the same load radially, laterally and in moment, and absorb slight mounting error inside each carriage.
Over a span this long, the flatness of the mounting base dominates the achieved running parallelism, which for grade N lies between 12 and 37 um across the length band. Each carriage is rated C 26.9 kN dynamic and C0 39.4 kN static, with MR 0.44 / MP 0.38 / My 0.38 kN.m, and the two blocks share long unsupported workpieces between them. Lubrication reaches both carriages through their M6 fittings at 3.6 cm3 first charge each, and the 100 km re-grease clock runs quickly on a long stroke: a 300 mm travel cycled once per second covers 100 km in about two weeks of continuous running, so distance, not the calendar, calls the interval.
Airtac LSH Linear Guide Rail LSH25HN2X3000S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HN2X3000S20AN-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 | 3000 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 LSH25HN2X3000S20AN-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. |
| 2X3000 | 2 carriages on a 3000 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, 3000 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 LSH25HN2X3000S20AN-M6 Is Used
Warehouse transfer cart
A battery trolley shuttling tote bins down a 3 m aisle rides on two such rails; the twin carriages on each rail share the trolley's weight over the full stroke and resist tipping under an off-centre load.
Panel edge routing line
A trimmer travelling the length of a 3 m composite panel needs the rail straight and supported along its whole run; two square carriages per rail resist the side pull of climb cuts.
Cable spool traverse
On a rewinder, the lay-on guide crosses the full 3 m spool width continuously; the recirculating ball circuit is built for reciprocation, and re-greasing at each 100 km keeps the traverse smooth.
Is the Airtac LSH Linear Guide Rail LSH25HN2X3000S20AN-M6 the Right Guide?
Long rails reward planning. Confirm the base is continuous and flat enough to support 3000 mm of rail, because whether the rail is pulled fully against its datum and torqued correctly has a large effect on the accuracy you achieve. If 3000 mm later proves short, this series runs to 4040 mm in one piece before a spliced code is needed; beyond that, ask about the T spliced-rail variant. For light duty in a small envelope, LRM is the smaller step, though its ratings are unpublished and we confirm them for you; for short travel needing crossed-roller stiffness, LGC is the cross-over; for heavier overhung loads, LSH30 or the L long carriage on size 25 buys moment capacity.
Checklist: form (this is a complete set); size by load and moment; carriage style and length; block count and rail length; accuracy and preload, with the mounting trade-off stated; grease fitting from the size-25 M6 family; and the pairing letter only when replacing a single part.
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 LSH25HN2X3000S20AN-M6 FAQ
For LSH25 standard-length square carriages: C 26.9 kN dynamic and C0 39.4 kN static per block; moments MR 0.44, MP 0.38 and My 0.38 kN.m; N-grade running parallelism 12-37 um across the length band; M6 mounting screws at 1370 N.cm (steel), 921 N.cm (cast iron), 686 N.cm (aluminium); grease 3.6 cm3 per carriage at first charge and 1.1 cm3 per top-up, on a 100 km or 3-to-6-month interval.
The set is one 3000 mm rail plus two matched square carriages, their M6 nipples, and the bolt caps that must be seated flush in the mounting holes to keep swarf out of the ball circuit - drive each cap into its counterbore, tap it flat using a plate and plastic mallet, then clean the rail. The series extends to 4040 mm without a joint, so a longer one-piece rail in this size exists; longer still would use the spliced T variant, quoted on request.
Authorized Export Seller
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 LSH25HN2X3000S20AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.