This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X840S, 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 SU32X840S
The AirTAC Airtac SU32~50 Standard Cylinder SU32X840S is a double-acting profile-type standard cylinder with a Ø32mm bore and 840mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X840S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke840 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X840S
- 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 SU32X840S
The AirTAC SU32X840S is a discontinued double-acting profile-type cylinder with a 32mm bore and 840mm stroke. Delivering 402N push force at 0.5MPa via a 1/8" port, its extruded aluminum barrel is more compact than an ISO 15552 unit. The direct replacement is the SAU32X840S, matching bore, stroke, force, port and SC-series mounting.
When upgrading, the SAU uses current CMSG/DMSG/EMSG sensors instead of this model's legacy CS1-B/DS1-B switches, and the SAUF variant adds a built-in valve the SU lacked. Note: the 840mm stroke requires external guides to prevent rod bending, and a plain cylinder needs a rod lock for load holding.
Airtac SU32~50 Standard Cylinder SU32X840S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X840S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X840S |
| Bore size | Ø32 mm |
| Stroke | 840 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X840S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X840S 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 SU32X840S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×840 | 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 SU32X840S Is Used
Package Diverting
Actuates routing gates on packaging lines where the compact 32mm profile saves space and the 840mm stroke shifts items between parallel conveyor belts.
Vertical Material Lift
Raises lightweight tote boxes up to 20kg in pick modules, leveraging the 840mm travel while requiring external linear guides to prevent rod bending.
Component Ejection
Pushes machined parts out of a fixture on an assembly line, using the 402N push force at 0.5MPa to reliably clear small aluminum or plastic components.
Replacing the Airtac SU32~50 Standard Cylinder SU32X840S with the SAU32X840S
To replace the SU32X840S, order the SAU32X840S direct equivalent. Verify your 1/8" port threads (PT/G/NPT) and SC-series mounting hardware, which carry over directly. Because this SKU includes a magnet (-S), you must upgrade from legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family. For force context, the 32mm bore yields 402N push at 0.5MPa; if more force is needed, the 40mm bore provides 628N, while downsizing to a 25mm bore drops thrust significantly. The 840mm stroke demands external guides to manage side-load and rod-bending risks. Finally, the air cushion only decelerates the piston; integrate an external pilot-operated check valve or rod lock to hold loads safely.
Replacement checklist
- ✓ Same bore / stroke → SAU32X840S
- ✓ 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 SU32X840S FAQ
Yes, the AirTAC SU32X840S is discontinued and end-of-life. The direct replacement is the SAU32X840S. It features the identical 32mm bore, 840mm stroke, 1/8" port, output force, and SC-series mounting compatibility, allowing a direct physical swap.
At 0.5MPa it provides 402N push and 345N pull force, rising to 563N at 0.7MPa and a theoretical max of 82kgf at 1.0MPa. Because this is an -S magnet model, it originally used CS1-B/DS1-B switches; the SAU32X840S replacement requires the newer CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU32X840S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X840S replacement — usually within 7-8 hours.