This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X650, 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 SU50X650
The AirTAC Airtac SU32~50 Standard Cylinder SU50X650 is a double-acting profile-type standard cylinder with a Ø50mm bore and 650mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X650, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke650 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X650
- 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 SU50X650
The AirTAC SU50X650 is a discontinued double-acting profile-type cylinder featuring a 50mm bore, 650mm stroke, and a 1/4" port. Generating 982N push force at 0.5MPa, it uses an extruded aluminium barrel to stay more compact than same-bore ISO 15552 units while sharing AirTAC SC-series mounts. AirTAC replaced this end-of-life unit with the SAU50X650 direct replacement, matching the exact bore, stroke, output force, port, and mounting footprint.
This SKU lacks a magnet, so it cannot accept a sensor. The SAU50X650 upgrade introduces CMSG/DMSG/EMSG switches for sensing and a SAUF built-in-valve option the SU line never had.
Airtac SU32~50 Standard Cylinder SU50X650 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X650 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X650 |
| Bore size | Ø50 mm |
| Stroke | 650 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 SAU50X650 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 SAU50X650 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 SU50X650
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×650 | 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 SU50X650 Is Used
Long-Stroke Diversion
Pushes packages across transfer lanes with a 650mm reach, utilizing the 982N push force at 0.5MPa to overcome guide friction.
Compact Assembly Ejection
Ejects machined parts from fixtures where a shorter profile body is needed to fit tight machine envelopes alongside SC-series mounts.
Replacing the Airtac SU32~50 Standard Cylinder SU50X650 with the SAU50X650
To replace the discontinued SU50X650, order the SAU50X650 direct: it preserves the 50mm bore, 650mm stroke, M16x1.5 rod thread, 1/4" port, and SC-series mounting accessories. Because this SKU has no magnet (-S), it cannot support a sensor; if you need position detection on the SAU, specify the -S option and note the switch family changes from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. Verify your thread standard (PT/G/NPT) when ordering. For sizing both ways, a 40mm bore yields 628N push at 0.5MPa, while a 63mm bore yields 1559N. At 650mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage. The air cushion only decelerates the piston near stroke end; it does not hold the load on air loss, so add an external rod lock or pilot-operated check valve for suspended loads.
Replacement checklist
- ✓ Same bore / stroke → SAU50X650
- ✓ 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 SU50X650 FAQ
Yes, the AirTAC SU50X650 is discontinued. The direct replacement is the SAU50X650. It matches the 50mm bore, 650mm stroke, 1/4" port, output force, and SC-series mounting, so it fits the same application without modifications.
The SU50X650 delivers 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. This specific SKU lacks a magnet and cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is required.
Request a Quote for the SAU50X650
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X650 replacement — usually within 7-8 hours.