This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X250TC, 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 SU40X250TC
The AirTAC SU32~50 Standard Cylinder SU40X250TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 250mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X250TC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X250TC
- 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 SU40X250TC
The AirTAC SU40X250TC is a discontinued double-acting profile-type cylinder with a 40mm bore and 250mm stroke. It delivers 628N push force at 0.5MPa via a 1/4" port. AirTAC replaced it with the SAU40X250TC, a direct upgrade retaining the exact body, stroke, force, port and SC-series TC mounting.
This unit lacks a magnet (-S), so it cannot accept a sensor; the SAU upgrade adds CMSG/DMSG/EMSG switch compatibility for -S variants and a new SAUF built-in-valve option. The extruded aluminum profile is more compact than an ISO 15552 cylinder.
Airtac SU32~50 Standard Cylinder SU40X250TC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X250TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X250TC |
| Bore size | Ø40 mm |
| Stroke | 250 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 SAU40X250TC 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 SAU40X250TC 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 SU40X250TC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 SU40X250TC Is Used
Package Diversion
Actuates routing gates on packaging lines using the 628N push force and 250mm stroke to redirect cartons efficiently.
Component Ejection
Pushes machined parts out of CNC fixtures using the compact profile body to fit tight machine envelopes.
Replacing the Airtac SU32~50 Standard Cylinder SU40X250TC with the SAU40X250TC
To replace this discontinued SU40X250TC, order the SAU40X250TC, confirming the 40mm bore, 250mm stroke, 1/4" port, M12x1.25 rod thread and TC mounting interface are retained. Since this SKU has no magnet, it cannot support sensing; if you need position detection, specify an SAU -S model and use current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For loads requiring 879N at 0.7MPa, the 50mm bore neighbor is preferable, while lighter duties can drop to a 32mm bore. At 250mm stroke, ensure adequate guidance to prevent rod-bending side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for load holding. The SAUF variant integrates a 4M valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X250TC
- ✓ 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 SU40X250TC FAQ
Yes, the SU40X250TC is discontinued. The direct replacement is the SAU40X250TC. It maintains the identical 40mm bore, 250mm stroke, 628N force at 0.5MPa, 1/4" port, and TC mounting, so it fits the same application directly.
The 40mm bore generates 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. This specific SKU lacks a magnet, meaning it cannot accept magnetic sensors; the SAU replacement uses CMSG/DMSG/EMSG switches for its -S variants.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X250TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X250TC replacement — usually within 7-8 hours.