This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X700TC, 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 SU40X700TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X700TC, which matches its bore, stroke, force and mounting.
The AirTAC SU40X700TC is a discontinued double-acting profile-type cylinder with a 40 mm bore and 700 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced it with the SAU40X700TC, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series TC mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. Because this SKU lacks a magnet, it cannot accept a sensor; furthermore, a plain cylinder drifts on air loss—the 21 mm cushions only decelerate near stroke end, so use an external rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU40X700TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X700TC |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAU40X700TC 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 SAU40X700TC 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. |
| ×700 | 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 packages across a 700 mm conveyor lane using a 628 N push force at 0.5 MPa, safely handling a 377 N working load.
Actuates heavy security gates over a 700 mm span, relying on the TC mount and 21 mm adjustable cushions to decelerate the moving mass.
To replace this discontinued SU40X700TC, order the SAU40X700TC direct equivalent, verifying the 40 mm bore, 700 mm stroke, 1/4" port (default PT thread), M12x1.25 rod thread, and TC mounting interface. If moving up or down a bore size, the 50 mm bore offers 982 N push at 0.5 MPa, while the 32 mm bore provides 402 N. Because this SKU has no magnet (-S), it cannot support sensing; if detection is needed on the new SAU, note that sensors changed from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG family, or consider the SAUF variant with its built-in 4M solenoid valve. For the 700 mm stroke, prevent rod bending by supporting the load with an external guide. Finally, remember the air cushions only decelerate; install a pilot-operated check valve or rod lock to hold loads securely.
Replacement checklist
Yes, the AirTAC SU40X700TC is discontinued and end-of-life. The direct replacement is the SAU40X700TC. It features the identical 40 mm bore, 700 mm stroke, 628 N force at 0.5 MPa, 1/4" port, and TC mounting, fitting the same application without modifications.
The 40 mm bore generates 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 accept a sensor; if sensing is required on the SAU replacement, it uses the current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X700TC replacement — usually within 7-8 hours.