This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X150, 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 Airtac SU32~50 Standard Cylinder SU50X150 is a double-acting profile-type standard cylinder with a Ø50mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X150, which matches its bore, stroke, force and mounting.
The AirTAC SU50X150 is a discontinued double-acting profile-type cylinder with a 50mm bore and 150mm stroke. It delivers 982N push and 825N pull at 0.5MPa via a 1/4" port. AirTAC replaced it with the SAU50X150, a direct upgrade sharing the exact bore, stroke, output force, port size and SC-series mounting.
Because this SU SKU lacks a magnet, it cannot accept a position switch. The SAU50X150 upgrade also modernises sensing to CMSG/DMSG/EMSG switches if you need them, and introduces the SAUF valve-integrated variant. Mechanically, the extruded aluminium body is shorter than an ISO 15552 equivalent.
| Model | Airtac SU32~50 Standard Cylinder SU50X150 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X150 |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X150 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X150 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). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 routing gate on a packaging line, using the 982N push force to deflect cartons at 30-800 mm/s without occupying the footprint of an ISO cylinder.
Functions as a pneumatic stop for inbound pallets, absorbing kinetic energy via the 21mm adjustable air cushions at both ends of the 150mm stroke.
Drives a mid-force clamping fixture for light machining, safely holding workpieces with an approximate 589N working load limit.
To replace the SU50X150, order the SAU50X150. Verify your 1/4" port thread (PT, G or NPT), M16x1.5 rod end, and SC-series mounting (LB/FA/FB/CA/CB). Since this specific SKU has no magnet, you cannot mount a sensor; if your upgrade needs position detection, specify an SAU50X150-S and use CMSG/DMSG/EMSG switches. For sizing both ways: dropping to a 40mm bore gives 628N push, while stepping up to a 63mm bore yields 1559N. Note that a plain cylinder drifts on air loss—the 21mm cushions only decelerate, so add an external rod lock for held loads. At 150mm stroke, rod bending is low, but always guide the load to prevent side-load wear.
Replacement checklist
Yes, the SU50X150 is discontinued. The direct replacement is the AirTAC SAU50X150. It shares the identical 50mm bore, 150mm stroke, 1/4" port, 982N force at 0.5MPa, and SC-series mounting accessories, so it bolts right in. The SAU also adds the SAUF built-in-valve option the SU lacked.
The 50mm bore yields 982N push and 825N pull at 0.5MPa, 1374N at 0.7MPa, and a 200kgf maximum at 1.0MPa. Because this specific SU50X150 SKU lacks a magnet, it cannot accept a sensor. If sensing is required, the SAU50X150-S replacement supports modern CMSG/DMSG/EMSG switches (replacing the legacy CS1-B/DS1-B).
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X150 replacement — usually within 7-8 hours.