This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1400, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC SU32~50 Standard Cylinder SU40X1400 is a double-acting profile-type standard cylinder with a Ø40mm bore and 1400mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X1400, which matches its bore, stroke, force and mounting.
The AirTAC SU40X1400 is a discontinued double-acting profile-type cylinder with a 40mm bore and 1400mm stroke. Because 1400mm exceeds the 1200mm standard maximum for this bore, it is a non-standard, made-to-order length.
The direct replacement is the SAU40X1400, matching the bore, stroke, 1/4" port, and SC-series mounting. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore. This specific SKU lacks a magnet and cannot accept a sensor; furthermore, the SAU upgrade switches to CMSG/DMSG/EMSG switches for its -S variants and introduces the SAUF built-in 4M valve option the SU line never had.
| Model | Airtac SU32~50 Standard Cylinder SU40X1400 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1400 |
| Bore size | Ø40 mm |
| Stroke | 1400 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU40X1400 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X1400 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Pushes workpieces between distant conveyor stations over a 1400mm span, using the 628 N push force at 0.5 MPa to move light assemblies.
Ejects packed cartons from deep racking bays, requiring an external guide to prevent rod bending across the long 1400mm stroke.
To replace this SU40X1400, order the SAU40X1400, confirming the 40mm bore, 1400mm non-standard stroke, 1/4" port, M12x1.25 rod thread, and SC-series mounting. If stepping down to a 32mm bore, expect 402 N push at 0.5 MPa; stepping up to a 50mm bore provides 982 N. This SKU has no magnet, so it cannot support position sensing. A plain cylinder drifts on air loss—the 21mm adjustable cushions only decelerate near stroke end, so use an external rod lock or pilot-operated check valve for load holding. At 1400mm, prevent rod bending with an external guide to manage side loads.
Replacement checklist
Yes, the AirTAC SU40X1400 is discontinued. The direct replacement is the SAU40X1400, offering the same 40mm bore, 1400mm stroke, 1/4" port, and SC-series mounting.
It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical max of 128 kgf at 1.0 MPa. This specific SKU lacks a magnet, so it cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches on its -S variants.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1400 replacement — usually within 7-8 hours.