Airtac LSH Linear Guide Rail LSH30RLX4000-P-E
The AirTAC LSH Linear Guide Rail LSH30RLX4000-P-E is a standard-type profile linear guide on a 28 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 asRail only
- SizeLSH30
- Rail width28 mm
- Rail length4000 mm
- 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 LSH30RLX4000-P-E
This code buys one thing: a 4000 mm size 30 hardened profile rail at precision accuracy grade, pairing code E. It is a rail only. No carriage, no preload, no grease nipple - those all live on the block you order separately with a matching E code. The finished axis gets its four-row, 45 degree ball geometry and its self-aligning behaviour from that carriage; the rail supplies the precision-ground raceway line the balls recirculate along. True rail width is 28 mm.
Precision grade tightens the running parallelism band to 3-21 um, the tightest of the three LSH grades. That precision is only realised if the mounting surface is worthy of it: a rail pulled flat against its datum and torqued correctly - M8 at 3040 N.cm in steel - is what turns the grade into measured straightness, while an uneven bed wastes it. At 4000 mm the rail sits 30 mm below the 4030 mm maximum for size 30, so the supporting structure should be engineered for a near-maximum single piece with no joints.
Airtac LSH Linear Guide Rail LSH30RLX4000-P-E Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30RLX4000-P-E |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Rail only |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH30 |
| Rail width | 28 mm (the size code is not the rail width above size 20) |
| Rail length | 4000 mm |
| Basic dynamic load rating C | 37.4 kN per carriage |
|---|---|
| Basic static load rating C0 | 55.0 kN per carriage |
| Allowable static moment | MR 0.66 / MP 0.67 / My 0.67 kN·m |
| Mounting screws | M8 — 3040 N·cm into steel, 2010 cast iron, 1470 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, matched by the pairing code |
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 listed here; they are available to order. This item is a rail only. Order a complete set if you also need a carriage.
Model Code: Airtac LSH Linear Guide Rail LSH30RLX4000-P-E
| LSH | LSH Series Linear Guide. |
|---|---|
| 30 | Size code — note the rail is 28 mm wide, not 30 mm. |
| RL | Rail only — no carriage supplied. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
| -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 | Rail only |
|---|---|
| Rail | Yes, 4000 mm |
| Carriage | No — not supplied with this item |
This is a bare rail cut to length. NO CARRIAGE IS INCLUDED. 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 LSH30RLX4000-P-E Is Used
Coordinate measuring aid
A 4 m precision rail lets a CMM-style probe or laser scanner sweep long extrusions and tubes against a straightness reference of 3-21 um, tight enough for first-article checks on aluminium profiles.
Pick-and-place gantry X-axis
High-speed pick-and-place gantries benefit from precision grade on the long axis, where 3-21 um parallelism reduces the position error the servo has to hunt out at each pick point.
Large-format laser cutting bed
A 4000 mm rail spans full-size sheet material; precision grade keeps the cutting head on a straight 4 m line, and the E code locks the spares list to the correct block for this track.
Is the Airtac LSH Linear Guide Rail LSH30RLX4000-P-E the Right Guide?
Reach for precision grade when the downstream process - measurement, laser cutting, fine dispensing - penalises straightness error more than it penalises cost. Confirm the full checklist before ordering: form (rail only), size 30 with a true 28 mm rail face, accuracy P, 4000 mm length, pairing code E on rail and carriage alike, top-lock mounting with no T suffix. Capacity is decided by the paired carriage's dynamic C, static C0 and MR/MP/My figures, not by the rail. If the application can live with normal grade, dropping to N saves cost without changing the rail width or fixing; if the envelope is small and the duty light, LRM steps down and we confirm its unpublished load ratings; for short travel where crossed-roller rigidity matters more than long recirculating travel, LGC is the step across.
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 LSH30RLX4000-P-E FAQ
Running parallelism band 3-21 um for P grade. Rail width 28 mm against a size code of 30. Fixing M8 screws at 3040 N.cm in steel, 2010 N.cm in cast iron, 1470 N.cm in aluminium. Mounting shoulder H 6.5 mm, H1 5 mm, H2 5 mm, corner radius max 1 mm. Maximum length for size 30 is 4030 mm, leaving this 4000 mm rail 30 mm of headroom. No load rating, preload or lubrication figure applies to a rail - the paired LSH30 carriage carries dynamic C, static C0 and the MR/MP/My moments, plus its grease charge.
No. This SKU is a precision-grade rail alone, cut to 4000 mm, with pairing code E and no carriage of any kind. To complete an axis, order LSH30 carriages whose code ends in the same E; the code is the only match key between rail and block. Read it off your existing part before ordering a replacement. A precision rail also rewards correct installation: pull it to the datum face, torque the M8 screws, and seat the bolt caps flush so swarf cannot enter the ball circuit.
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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 LSH30RLX4000-P-E
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