This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X30TC, 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 SU40X30TC
The AirTAC SU32~50 Standard Cylinder SU40X30TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 30mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X30TC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke30 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X30TC
- 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 SU40X30TC
The AirTAC SU40X30TC is a discontinued double-acting profile-type cylinder featuring a 40mm bore, 30mm stroke, and an extruded aluminum barrel with adjustable air cushions at both ends. It delivers 628 N push force at 0.5 MPa and uses a 1/4" port with an M12x1.25 rod thread. Because this SU series is end-of-life, AirTAC replaced it with the SAU40X30TC — a direct replacement retaining the exact same body dimensions, output force, port size, and SC-series TC mounting interface.
This compact profile body is shorter than an ISO 15552 cylinder of the same bore. Note that this specific SKU lacks a magnet (-S), so it cannot accept magnetic sensors; furthermore, the SAU upgrade transitions to current CMSG/DMSG/EMSG switches and introduces the SAUF built-in 4M solenoid valve option that the legacy SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X30TC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X30TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X30TC |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAU40X30TC 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 SAU40X30TC 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 SU40X30TC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SU40X30TC Is Used
Short-Stroke Clamping
Ideal for holding lightweight components during machining or assembly, utilizing the 628 N push force within a tight 30mm stroke envelope.
Package Diverting
Provides rapid actuation for sorting or diverting small items on a production line, where the compact profile saves valuable machine space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X30TC with the SAU40X30TC
To replace this discontinued SU40X30TC, order the exact SAU40X30TC direct equivalent, verifying your 1/4" port, M12x1.25 rod thread, and TC mounting accessory are retained. Since this SKU has no magnet, it cannot support sensing — if you need position detection on the SAU, you must add the -S option and use the newer CMSG/DMSG/EMSG sensor family rather than the legacy CS1-B/DS1-B switches. When sizing, a neighboring 32mm bore provides 402 N push at 0.5 MPa, while a 50mm bore offers 982 N, allowing you to step up or down if your load demands change. Keep in mind a plain cylinder does not hold load without live air; the cushions only decelerate near stroke end, so for vertical or suspended loads integrate an external rod lock or pilot-operated check valve to prevent drift.
Replacement checklist
- ✓ Same bore / stroke → SAU40X30TC
- ✓ 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 SU40X30TC FAQ
Yes, the AirTAC SU40X30TC is discontinued and end-of-life. The direct replacement is the SAU40X30TC. It shares the same 40mm bore, 30mm stroke, 628 N force, 1/4" port, and TC mounting, so it drops directly into the same application.
At 0.5 MPa it provides 628 N push and 528 N pull force, increasing to 879 N push at 0.7 MPa, with a theoretical max of 128 kgf at 1.0 MPa. This specific SKU lacks a magnet, meaning it cannot accept magnetic sensors; if sensing is required on the SAU replacement, you must specify the -S option and use CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X30TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X30TC replacement — usually within 7-8 hours.