This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X330, 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 SU40X330
The AirTAC Airtac SU32~50 Standard Cylinder SU40X330 is a double-acting profile-type standard cylinder with a Ø40mm bore and 330mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X330, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke330 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X330
- 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 SU40X330
The AirTAC SU40X330 is a discontinued double-acting profile-type cylinder with a 40mm bore and 330mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 unit of the same bore. It delivers 628N push and 528N pull at 0.5MPa, operating at 30-800mm/s through a 1/4" port.
AirTAC replaced this legacy unit with the SAU40X330 direct replacement, preserving the exact bore, stroke, force, and SC-series mounting. The SAU upgrade switches to current CMSG/DMSG/EMSG sensors (this non-magnetic SU SKU cannot take a switch anyway) and adds the SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU40X330 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X330 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X330 |
| Bore size | Ø40 mm |
| Stroke | 330 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 SAU40X330 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X330 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 SU40X330
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×330 | 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 SU40X330 Is Used
Package Diverting
Pushes light cartons off a belt line using 628N at 0.5MPa, with the 330mm stroke clearing guide rails.
Pallet Stop Gate
Acts as a pneumatic stop for incoming pallets, benefiting from the compact profile body.
Component Ejector
Ejects machined parts from a fixture, handling a safe 377N working load easily.
Replacing the Airtac SU32~50 Standard Cylinder SU40X330 with the SAU40X330
To replace this discontinued SU40X330, order the SAU40X330 direct equivalent. Confirm your 1/4" port thread (PT/G/NPT) and SC-series mounting (LB/FA/FB/CA/CB). Because this 330mm stroke exceeds 300mm, use an external guide to prevent rod bending and side-load wear. For higher loads, neighboring bores (32mm or 50mm) offer 402N or 982N at 0.5MPa. Note that this non-magnetic SKU cannot accept a sensor. The cushion only decelerates; for load holding on air loss, add an external rod lock or pilot-operated check valve. The SAUF variant integrates a valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X330
- ✓ 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 SU40X330 FAQ
Yes, the AirTAC SU40X330 is discontinued. The direct replacement is the SAU40X330. It shares the same 40mm bore, 330mm stroke, 628N force, 1/4" port, and SC-series mounting accessories, fitting the exact same application.
At 0.5MPa it pushes 628N and pulls 528N; at 0.7MPa it pushes 879N, 1130N at 0.9MPa, with a 128kgf max at 1.0MPa. This specific SKU lacks a magnet (-S) and cannot take a sensor. The SAU replacement uses CMSG/DMSG/EMSG switches on its -S versions.
Request a Quote for the SAU40X330
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X330 replacement — usually within 7-8 hours.