This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1800, 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.
Airtac SU32~50 Standard Cylinder SU50X1800
The AirTAC SU32~50 Standard Cylinder SU50X1800 is a double-acting profile-type standard cylinder with a Ø50mm bore and 1800mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1800, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke1800 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X1800
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU50X1800
The AirTAC SU50X1800 is a discontinued double-acting profile-type cylinder with a 50mm bore and 1800mm stroke. Delivering 982N push force at 0.5MPa, it uses an extruded aluminum barrel making it more compact than an ISO 15552 cylinder of the same bore. Because this SU model is end-of-life, AirTAC replaced it with the exact direct replacement SAU50X1800, preserving the original body, 1/4" port, M16x1.5 rod thread, and SC-series mounting.
This 1800mm stroke exceeds the 1200mm standard maximum, making it a non-standard made-to-order unit requiring external guidance to prevent rod bending. As a no-magnet SKU, it cannot accept sensors. The SAU upgrade adds current CMSG/DMSG/EMSG switch compatibility and an optional SAUF built-in valve, neither of which the SU offered.
Airtac SU32~50 Standard Cylinder SU50X1800 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X1800 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1800 |
| Bore size | Ø50 mm |
| Stroke | 1800 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 SAU50X1800 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X1800 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU50X1800
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×1800 | 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.
Where the Airtac SU32~50 Standard Cylinder SU50X1800 Is Used
Long-Reach Transfer
Pushes products across wide conveyor gaps using the 1800mm stroke, guided externally to prevent rod deflection during transit.
Extended Stroke Press
Acts on distant workpieces in large fixtures, relying on adjustable 21mm cushions to decelerate the 50mm piston at stroke ends.
Replacing the Airtac SU32~50 Standard Cylinder SU50X1800 with the SAU50X1800
To replace this discontinued SU50X1800, order the SAU50X1800 direct equivalent, matching the 50mm bore, 1800mm stroke, 1/4" port, and SC-series mounting. Since 1800mm exceeds the 1200mm standard stroke, expect a non-standard made-to-order build and add external guides to prevent rod bending over this long reach. For sizing alternatives, dropping to a 40mm bore reduces push force to 628N at 0.5MPa, while stepping up to a 63mm bore increases it to 1559N. A plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve for held loads. The SAUF variant integrates a 4M solenoid valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X1800
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU50X1800 FAQ
Yes, the SU50X1800 is discontinued. The direct replacement is the AirTAC SAU50X1800, which shares the identical 50mm bore, 1800mm stroke, 982N force, 1/4" port, and SC-series mounting.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa push is 1374N, and max force is 200kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot take sensors; the SAU replacement uses CMSG/DMSG/EMSG switches for its -S variants.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X1800
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1800 replacement — usually within 7-8 hours.