This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X33, 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 SU50X33
The AirTAC Airtac SU32~50 Standard Cylinder SU50X33 is a double-acting profile-type standard cylinder with a Ø50mm bore and 33mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X33, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke33 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X33
- 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 SU50X33
The AirTAC SU50X33 is a discontinued double-acting profile-type cylinder with a 50mm bore and 33mm stroke. It delivers 982N push and 825N pull at 0.5MPa, making it a solid choice for mid-range actuation. AirTAC replaced this end-of-life unit with the SAU50X33, a direct replacement retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because this specific SKU lacks a magnet (-S), it cannot accept a piston switch. Upgrading to the SAU brings current CMSG/DMSG/EMSG sensor compatibility if you later need position feedback, plus an optional SAUF built-in 4M valve variant the SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X33 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X33 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X33 |
| Bore size | Ø50 mm |
| Stroke | 33 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 SAU50X33 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 SAU50X33 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 SU50X33
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×33 | 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 SU50X33 Is Used
Short-Stroke Clamping
Ideal for holding parts during machining, delivering 982N of clamping force in a compact profile body.
Package Diverting
Provides a fast 33mm actuation to push cartons off a production line without taking up excessive space.
Pallet Stopper Gate
Acts as a compact physical stop for lightweight pallets, retracting quickly to allow passage.
Replacing the Airtac SU32~50 Standard Cylinder SU50X33 with the SAU50X33
To replace this SU50X33, order the SAU50X33. Confirm your 1/4" port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, TC) carry over directly. If your application needs position sensing, note this no-magnet SKU cannot hold a switch, but the SAU replacement can be specified with a magnet for CMSG/DMSG/EMSG sensors. For load holding, remember the air cushion only decelerates at stroke end; a plain cylinder drifts on air loss, so add an external rod lock or pilot-operated check valve for safety. If you need more force, the neighbouring 63mm bore provides 1559N push at 0.5MPa; if less is required, the 40mm bore offers 628N. The 33mm stroke is well within standard limits, so no side-load guide issues are expected.
Replacement checklist
- ✓ Same bore / stroke → SAU50X33
- ✓ 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 SU50X33 FAQ
Yes, the AirTAC SU50X33 is discontinued. The direct replacement is the SAU50X33. It matches the 50mm bore, 33mm stroke, 982N output force, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. It cannot hold a load without live air; the cushions only decelerate. Use an external rod lock for holding. Also, this no-magnet SKU cannot take a sensor.
Request a Quote for the SAU50X33
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X33 replacement — usually within 7-8 hours.