This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X770S, 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 SU50X770S
The AirTAC SU32~50 Standard Cylinder SU50X770S is a double-acting profile-type standard cylinder with a Ø50mm bore and 770mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X770S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke770 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X770S
- 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 SU50X770S
The AirTAC SU50X770S is a discontinued double-acting profile cylinder with a 50mm bore and 770mm stroke. Delivering 982N push force at 0.5MPa via a 1/4 inch port, it is replaced by the SAU50X770S. This direct successor shares the exact extruded body, M16x1.5 rod, and SC-series mounts.
The SAU upgrade switches the -S magnet from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG sensors, and introduces the SAUF valve-integrated option. Note that standard cylinders drift on air loss; cushions only decelerate.
Airtac SU32~50 Standard Cylinder SU50X770S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X770S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X770S |
| Bore size | Ø50 mm |
| Stroke | 770 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 SAU50X770S 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 SAU50X770S 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 SU50X770S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×770 | 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 SU50X770S Is Used
Long-Stroke Diversion
Pushes packages across a 770mm transfer lane using the 982N @0.5MPa force, guided externally to prevent rod bending.
Multi-Stage Ejection
Cycles a 770mm ejection pin to clear machined parts, utilizing the 21mm adjustable air cushions at both ends for smooth stops.
Replacing the Airtac SU32~50 Standard Cylinder SU50X770S with the SAU50X770S
To replace this SU50X770S, order the SAU50X770S, confirming the 50mm bore, 770mm stroke, 1/4" port, and SC-series mounting hardware. Because this is a -S magnet model, you must upgrade your switches: the legacy CS1-B/DS1-B sensors are replaced by CMSG/DMSG/EMSG on the SAU. If you need integrated flow control, the SAU family offers the SAUF variant with a built-in valve. For the 770mm stroke, prevent rod bending by using an external guide to absorb side loads. Sizing alternatives: step down to a 40mm bore (628N push @0.5MPa) for lighter loads, or up to 63mm (1559N) for heavier ones. A plain cylinder will not hold a load without air; add a rod lock or check valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X770S
- ✓ 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 SU50X770S FAQ
Yes, the SU50X770S is discontinued. The direct replacement is the AirTAC SAU50X770S. It matches the 50mm bore, 770mm stroke, 982N force, 1/4" port, and SC-series mounting. The main change is that your -S magnet will require upgrading from CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors.
This double-acting cylinder features a 1/4" port and M16x1.5 rod. It delivers 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. Note that the air cushions only decelerate the piston; they do not lock the load.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X770S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X770S replacement — usually within 7-8 hours.