This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X50LB, 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 SU50X50LB
The AirTAC SU32~50 Standard Cylinder SU50X50LB is a double-acting profile-type standard cylinder with a Ø50mm bore and 50mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X50LB, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke50 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X50LB
- 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 SU50X50LB
The AirTAC SU50X50LB is a discontinued double-acting profile-type cylinder with a 50mm bore and 50mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X50LB, a direct upgrade retaining the exact bore, stroke, force, port size and SC-series LB mounting interface.
This compact extruded-aluminium body is shorter than a same-bore ISO 15552 unit. Note this non-magnet SKU cannot accept sensors; the SAU upgrade uses current CMSG/DMSG/EMSG switches and adds a SAUF valve-integrated option the SU lacked.
Airtac SU32~50 Standard Cylinder SU50X50LB Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X50LB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X50LB |
| Bore size | Ø50 mm |
| Stroke | 50 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 SAU50X50LB 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 SAU50X50LB 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 SU50X50LB
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×50 | 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 SU50X50LB Is Used
Clamping Fixtures
Secures mid-weight machined parts during milling or drilling, using the 982N push force to hold components firmly against a stop.
Package Diverting
Extends 50mm to push cartons off a main packaging line onto a secondary spur, leveraging the compact profile to fit tight transfer gaps.
Pallet Stop Gate
Acts as a pneumatic stop for pallets entering a wrap station, absorbing kinetic energy via the 21mm adjustable air cushions at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X50LB with the SAU50X50LB
To replace this discontinued SU50X50LB, order the SAU50X50LB direct: confirm the 50mm bore, 50mm stroke, 1/4" port, M16x1.5 rod thread and LB mounting. This non-magnet version cannot take a sensor. If sensing is needed, the SAU -S variant requires CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For loads needing hold on air loss, add an external rod lock, as cushions only decelerate. If undersizing, a 40mm bore gives 628N push at 0.5MPa; if oversizing, a 63mm bore provides 1559N. The SAUF offers a built-in valve if desired.
Replacement checklist
- ✓ Same bore / stroke → SAU50X50LB
- ✓ 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 SU50X50LB FAQ
Yes, the SU50X50LB is discontinued. The direct replacement is the AirTAC SAU50X50LB. It matches the 50mm bore, 50mm stroke, 982N output force, 1/4" port and SC-series LB mounting, so it bolts right in without modifications.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N with a theoretical max of 200kgf at 1.0MPa. The 1/4" port cylinder cannot hold a load without live air; the cushions only decelerate. For vertical holding, use an external rod lock or pilot-operated check valve.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X50LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X50LB replacement — usually within 7-8 hours.