Airtac LSH Linear Guide Rail LSH15HN4X3000S30CN-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15HN4X3000S30CN-M4 is a standard-type profile linear guide on a 15 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
- SizeLSH15
- Rail width15 mm
- Carriage lengthStandard carriage
- Carriages4
- Rail length3000 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 LSH15HN4X3000S30CN-M4
This is the stiff version of the LSH15 set: a 3000 mm profile rail, 15 mm wide, carrying four square standard carriages with medium preload (code C). The four-row ball pattern sits at 45 degree X-arranged arc raceways, two contact points per ball, so the preloaded carriage carries equally in every direction and self-aligns within stated limits. Preload C removes the internal play that lets a lightly built structure deflect on every reversal - at the cost of a much tighter installation specification, so read the second paragraph before you design the bed.
The trade-off is measurable. At preload A this size tolerates 130 um of height error over 500 mm of rail spacing; at preload C that drops to 35 um, close to four times tighter, and alignment error tightens from 25 to 13 um. In return, the rail resists shock walk and holds position under reversing loads. Ratings per carriage: 11.3 kN dynamic, 17.9 kN static, 0.12 kN.m in each moment axis; accuracy N running parallelism 12-37 um. The 3000 mm rail sits inside the 4040 mm Lmax for size 15 with over a metre of headroom, and the S30 marking puts the first bolt hole 30 mm in from each rail end. Charge 0.9 cm3 of grease per carriage through the M4 fitting.
Airtac LSH Linear Guide Rail LSH15HN4X3000S30CN-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15HN4X3000S30CN-M4 |
|---|---|
| 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 | LSH15 |
| Rail width | 15 mm |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 4 |
| Rail length | 3000 mm |
| Basic dynamic load rating C | 11.3 kN per carriage |
|---|---|
| Basic static load rating C0 | 17.9 kN per carriage |
| Allowable static moment | MR 0.12 / MP 0.12 / My 0.12 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | C — medium preload |
| Mounting screws | M4 — 412 N·cm into steel, 274 cast iron, 206 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 LSH15HN4X3000S30CN-M4
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 4X3000 | 4 carriages on a 3000 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, 3000 mm |
| Carriage | Yes, 4 |
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 LSH15HN4X3000S30CN-M4 Is Used
Acrylic signage laser gantry
A laser head on a 3 m gantry cutting acrylic sheet: medium preload holds the spot on target through each direction reversal, where a zero-preload rail would let the head lag and widen the kerf.
Semiautomatic welding beam
A torch carriage tracking long seams on fabricated panels; the preloaded rail keeps the beam from shifting under torch reaction loads and spark debris.
Vial sorting escapement axis
A fast indexing slide in a pharmaceutical vial line, where the anti-play behaviour of preload C keeps stop positions repeatable at high cycle rates.
Is the Airtac LSH Linear Guide Rail LSH15HN4X3000S30CN-M4 the Right Guide?
Specify preload C only when the mounting faces are machined and verifiable - if the bed is sawn or welded plate that cannot hold 35 um of height agreement over 500 mm, take preload A or B and buy stiffness with carriage count or size instead. Four carriages on one rail also need the two datum lines to agree over three metres, so check the second rail's alignment with the same care. When the moment per point is the limiting figure, LSH25 raises MR to 0.44 kN.m per carriage; when the machine is small and the duty light, LRM may be enough, subject to its unpublished ratings, which we confirm for you; when travel is short and crossed-roller rigidity is what the process wants, price LGC. Checklist: set form, size by load and moment, square standard carriages, count 4, rail 3000 mm, accuracy N, preload C, M4 grease fitting.
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 LSH15HN4X3000S30CN-M4 FAQ
Per carriage: C 11.3 kN dynamic, C0 17.9 kN static, MR/MP/My 0.12/0.12/0.12 kN.m. N-grade running parallelism 12-37 um. Rail screws M4 at 412 N.cm into steel, 274 into cast iron, 206 into aluminium. Grease per carriage: 0.9 cm3 first charge, 0.3 cm3 top-up, interval 100 km of travel or 3 to 6 months, Mobilux EP2 or equivalent, delivered through the M4 nipple.
It demands agreement between the mounting faces that a no-preload guide would forgive. Over 500 mm of rail spacing, height error between the rails must stay within 35 um and parallelism within 13 um, scaled to your actual spacing; the comparable no-preload figures are 130 um and 25 um. If your surface finish, flatness or fastening cannot be verified to that level, preload B (85 um and 18 um) is the safer stiffness upgrade. The self-alignment built into the carriage absorbs only what falls inside these values - it is not unlimited.
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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 LSH15HN4X3000S30CN-M4
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