This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X180TC, 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 SU40X180TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 180mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X180TC, which matches its bore, stroke, force and mounting.
The AirTAC SU40X180TC is a discontinued double-acting profile-type cylinder with a 40mm bore and 180mm stroke. It delivers 628N push and 528N pull at 0.5MPa through a 1/4" port. The direct replacement is the SAU40X180TC, matching the bore, stroke, force, port, and TC mounting exactly.
This extruded aluminium body is more compact than an ISO 15552 equivalent. Because this SKU lacks a magnet (-S), it cannot accept a sensor; furthermore, the SAU family upgrades sensing to CMSG/DMSG/EMSG switches and adds a SAUF built-in-valve option.
| Model | Airtac SU32~50 Standard Cylinder SU40X180TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X180TC |
| Bore size | Ø40 mm |
| Stroke | 180 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 SAU40X180TC 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 SAU40X180TC 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. |
| ×180 | 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.
Actuates a TC-mounted diverter arm on a packaging line, using the 628N push force at 0.5MPa to redirect cartons efficiently.
Provides 180mm of travel to position and clamp medium workpieces in automated machining fixtures prior to milling.
To replace this discontinued SU40X180TC, order the SAU40X180TC. Confirm the 40mm bore, 180mm stroke, 1/4" port (PT thread), M12x1.25 rod thread, and the SC-series TC mounting accessory. If your machine needs position sensing, note this specific no-magnet SKU cannot take a switch, and the SAU upgrade uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For higher loads, neighbouring bores (32mm or 50mm) offer 402N or 982N push at 0.5MPa. A plain cylinder drifts on air loss—the 21mm cushions only decelerate—so use an external rod lock for held loads. At 180mm stroke, side-load bending is low, but ensure guide alignment to prevent rod seal wear.
Replacement checklist
Yes, the AirTAC SU40X180TC is discontinued. The direct replacement is the SAU40X180TC. It matches the 40mm bore, 180mm stroke, 628N push force, 1/4" port, and TC mounting perfectly, while adding newer sensor compatibility.
At 0.5MPa it provides 628N push and 528N pull, reaching 879N at 0.7MPa, 1130N at 0.9MPa, and a 128kgf maximum at 1.0MPa. Because this specific SKU lacks a magnet, it cannot accept switches; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X180TC replacement — usually within 7-8 hours.