This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X780S, 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 SU50X780S
The AirTAC SU32~50 Standard Cylinder SU50X780S is a double-acting profile-type standard cylinder with a Ø50mm bore and 780mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X780S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke780 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X780S
- 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 SU50X780S
The AirTAC SU50X780S is a discontinued double-acting profile-type cylinder with a 50mm bore and 780mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X780S, a direct replacement retaining the exact bore, stroke, force, and SC-series mounting.
The SAU upgrade switches the magnet sensor family from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in-valve option the SU lacked.
Airtac SU32~50 Standard Cylinder SU50X780S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X780S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X780S |
| Bore size | Ø50 mm |
| Stroke | 780 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 SAU50X780S 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 SAU50X780S 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 SU50X780S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×780 | 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 SU50X780S Is Used
Long-Stroke Diversion
Drives a 780mm pusher arm on a packaging line to divert heavy totes, utilizing the 982 N push force at 0.5 MPa with external linear guides to prevent rod bending.
Vertical Material Lift
Raises a 50 kg palletized component stack using the safe vertical lift capacity, requiring a pilot-operated check valve to secure the load against air loss.
Parts Ejection
Ejects molded parts from a 50mm bore press over a 780mm clearance zone, relying on adjustable end cushions to decelerate the 20mm rod smoothly.
Replacing the Airtac SU32~50 Standard Cylinder SU50X780S with the SAU50X780S
To replace this discontinued SU50X780S, order the SAU50X780S. Confirm the 1/4" port, M16x1.5 rod thread, and SC-series mounts (LB/FA/FB/CA/CB). Because this -S SKU has a magnet, note the switch upgrade to CMSG/DMSG/EMSG. If sizing neighbors, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore gives 1559 N. For the 780mm stroke, use an external guide to prevent rod bending and side loads. The air cushion only decelerates; use a pilot-operated check valve or rod lock to hold loads. The SAUF variant adds a built-in valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU50X780S
- ✓ 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 SU50X780S FAQ
Yes, the SU50X780S is discontinued. The direct replacement is the AirTAC SAU50X780S. It shares the identical 50mm bore, 780mm stroke, 1/4" port, output force, and SC-series mounting accessories. You can order the SAU50X780S as a direct fit.
The SAU50X780S provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a 200 kgf maximum at 1.0 MPa. Because your old SU used a magnet with CS1-B/DS1-B switches, the SAU replacement requires upgrading to the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X780S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X780S replacement — usually within 7-8 hours.