This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X150LB, 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 SU50X150LB 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 SAU50X150LB, which matches its bore, stroke, force and mounting.
The AirTAC SU50X150LB is a discontinued double-acting profile-type cylinder with a 50mm bore and 150mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X150LB, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series LB mounting interface.
Because this SKU lacks a magnet, it cannot accept a position switch. The SAU upgrade also drops the legacy CS1-B/DS1-B sensors for modern CMSG/DMSG/EMSG switches and introduces the SAUF built-in valve option.
| Model | Airtac SU32~50 Standard Cylinder SU50X150LB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X150LB |
| 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 SAU50X150LB 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 SAU50X150LB 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 diverting arms on packaging lines, using the 982N push force at 0.5MPa to push standard cartons reliably onto adjacent conveyors.
Raises and lowers stop gates at palletizing stations, where the LB mount provides rigid body fixing and the 150mm stroke clears pallet footprints.
To replace this SU50X150LB, order the SAU50X150LB. Confirm the 1/4" port, M16x1.5 rod thread, PT thread standard, and the SC-series LB mounting bracket. Since this specific SKU has no magnet (-S), it cannot support sensors; if sensing is needed on the new unit, specify an SAU -S model and use CMSG/DMSG/EMSG switches. A plain cylinder drifts without live air—the 21mm cushions only decelerate, so add an external rod lock for held loads. At 150mm stroke, rod bending is low, but if upgrading to longer strokes (>=300mm), guide the load to prevent side-load wear. The 50mm bore yields 982N push at 0.5MPa; if undersized, the 63mm bore provides 1559N.
Replacement checklist
Yes, the AirTAC SU50X150LB is discontinued. The direct replacement is the SAU50X150LB. It matches the 50mm bore, 150mm stroke, 982N force, 1/4" port, and SC-series LB mounting accessories, fitting the same application directly.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa push is 1374N, and the theoretical max is 200kgf at 1.0MPa. The cylinder does not hold load on air loss—the cushions only decelerate—so use an external rod lock for vertical holding. Also, this no-magnet SKU cannot take sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X150LB replacement — usually within 7-8 hours.