This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X400TC, 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 SU40X400TC
The AirTAC SU32~50 Standard Cylinder SU40X400TC is a double-acting profile-type standard cylinder with a Ø40mm bore and 400mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X400TC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X400TC
- 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 SU40X400TC
The AirTAC SU40X400TC is a discontinued double-acting profile-type cylinder with a 40mm bore and 400mm stroke. It delivers 628 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced this end-of-line unit with the SAU40X400TC, a direct upgrade retaining the exact bore, stroke, force, port and TC mounting interface.
Because this specific SKU lacks a magnet, it cannot accept a sensor. The SAU successor adds a built-in valve option (SAUF) the SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X400TC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X400TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X400TC |
| Bore size | Ø40 mm |
| Stroke | 400 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 SAU40X400TC 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 SAU40X400TC 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 SU40X400TC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 SU40X400TC Is Used
Pallet Push-Off
Pushes empty pallets from an accumulation zone using the TC mount, handling a vertical lift capacity up to 32 kg.
Gate Actuation
Cycles a 400mm machine safety gate, relying on adjustable end cushions to decelerate the moving payload smoothly.
Replacing the Airtac SU32~50 Standard Cylinder SU40X400TC with the SAU40X400TC
To replace this discontinued SU40X400TC, order the SAU40X400TC direct: verify the 40mm bore, 400mm stroke, 1/4" port, M12x1.25 rod thread and TC mounting. Since this SKU has no -S magnet, it cannot hold a sensor; if you need position detection on the new cylinder, specify an SAU-S model and migrate to current CMSG/DMSG/EMSG switches (the legacy CS1-B/DS1-B are obsolete). If you need higher force, the 50mm bore yields 982 N push at 0.5 MPa; if less is required, the 32mm bore gives 402 N. A plain cylinder drifts on air loss—the 21mm cushions only decelerate near stroke ends, so use an external rod lock for held loads. Finally, the 400mm stroke demands an external guide to prevent rod bending under side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU40X400TC
- ✓ 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 SU40X400TC FAQ
Yes, the SU40X400TC is discontinued. The direct replacement is the AirTAC SAU40X400TC. It matches the 40mm bore, 400mm stroke, 1/4" port, 628 N force at 0.5 MPa, and TC mounting interface.
It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a 128 kgf max at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU replacement with -S uses CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X400TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X400TC replacement — usually within 7-8 hours.