This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1700, 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 SU50X1700 is a double-acting profile-type standard cylinder with a Ø50mm bore and 1700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1700, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1700 is a discontinued double-acting profile-type cylinder with a 50mm bore and 1700mm stroke. Because 1700mm exceeds the 1200mm standard maximum for this bore, it is a non-standard, made-to-order unit. It delivered 982 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced the SU line with the SAU family; the SAU50X1700 is the direct replacement, matching the original body, stroke, force, port and SC-series mounting.
This SKU lacks a magnet and cannot accept a sensor. The SAU upgrade uses current CMSG/DMSG/EMSG switches for -S variants, and introduces the SAUF built-in 4M valve option the SU line never had. Note that a standard cylinder drifts without live air; use an external rod lock for load holding.
| Model | Airtac SU32~50 Standard Cylinder SU50X1700 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1700 |
| Bore size | Ø50 mm |
| Stroke | 1700 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 SAU50X1700 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 SAU50X1700 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. |
| ×1700 | 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 wide sorting belt over the 1700mm travel, relying on the 982 N push force at 0.5 MPa to handle friction without stalling.
Extracts totes from deep shelving units where the extended stroke is required, provided external guides support the rod to prevent binding.
Lowers 50 kg assemblies over a tall drop zone, using adjustable end cushions to decelerate the load smoothly before reaching the end of travel.
To replace this discontinued SU50X1700, order the SAU50X1700 direct equivalent, verifying the 50mm bore, 1700mm non-standard stroke, 1/4" port, M16x1.5 rod thread and SC-series mounting. Since this unit has no magnet (-S), it cannot support sensing; if you need position detection on the SAU, specify the -S option and migrate from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG switches. Sizing both ways: a 40mm bore offers 628 N push @0.5 MPa, while a 63mm bore provides 1559 N. For load holding, remember the air cushion only decelerates; it does not lock. Add an external pilot-operated check valve. Because the 1700mm stroke is long, use external guides to prevent rod bending and side-load damage. The SAUF valve-integrated variant can simplify cycle plumbing if needed.
Replacement checklist
Yes, the SU50X1700 is discontinued. The direct replacement is the AirTAC SAU50X1700. It features the same 50mm bore, 1700mm stroke, 982 N output force at 0.5 MPa, 1/4" port, and SC-series mounting compatibility. You can install the SAU directly into the same application.
The 50mm bore generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. This specific SKU has no magnet, so it cannot accept sensors. If sensing is required on the SAU replacement, order the -S option and use 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 SAU50X1700 replacement — usually within 7-8 hours.