This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X150SN, 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 SU40X150SN
The AirTAC SU32~50 Standard Cylinder SU40X150SN is a double-acting profile-type standard cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X150SN, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X150SN
- 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 SU40X150SN
The AirTAC SU40X150SN is a discontinued double-acting profile-type cylinder with a 40 mm bore, 150 mm stroke, 1/4" port and M12x1.25 rod thread. It delivers 628 N push force at 0.5 MPa. AirTAC replaced this unit with the SAU40X150SN, a direct replacement retaining the exact same body dimensions, output force, port size and SC-series mounting.
Because this SKU includes a magnet (-S) and NBR seals (-N), note that the SAU upgrade transitions from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family. The NBR seal supports standard -20 to +70 C operation. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
Airtac SU32~50 Standard Cylinder SU40X150SN Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X150SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X150SN |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAU40X150SN 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 SAU40X150SN 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 SU40X150SN
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 SU40X150SN Is Used
Package Diverting
Actuates diverting arms on packaging lines where 628 N push force at 0.5 MPa easily redirects standard cartons.
Pallet Stopping
Functions as a pneumatic stop gate for medium-duty pallets, using its 150 mm stroke to clear the conveyor path.
Clamp Actuation
Drives mid-sized clamping fixtures in CNC machining cells, benefiting from the compact profile body and adjustable cushions.
Replacing the Airtac SU32~50 Standard Cylinder SU40X150SN with the SAU40X150SN
To replace the discontinued SU40X150SN, order the SAU40X150SN. Verify your 1/4" port thread (PT, G or NPT) and SC-series mounting accessories (LB, FA, FB, CA, CB, TC) which carry over directly. If your machine relied on the -S magnet for positioning, you must upgrade to CMSG, DMSG or EMSG sensors as the older CS1-B/DS1-B switches are obsolete. For higher force demands, stepping up to a 50 mm bore yields 982 N push at 0.5 MPa; dropping to a 32 mm bore provides 402 N. A plain cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for fail-safe holding. At 150 mm stroke, rod bending stress is low, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same bore / stroke → SAU40X150SN
- ✓ 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 SU40X150SN FAQ
Yes, the AirTAC SU40X150SN is discontinued. The direct replacement is the SAU40X150SN. It matches the 40 mm bore, 150 mm stroke, 1/4" port, output force and SC-series mounting, but you must switch from legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches.
The 40 mm bore features a 1/4" port and M12x1.25 rod thread. Force output is 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, with a theoretical maximum of 128 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X150SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X150SN replacement — usually within 7-8 hours.