This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X80N, 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 SU40X80N
The AirTAC SU32~50 Standard Cylinder SU40X80N is a double-acting profile-type standard cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X80N, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X80N
- 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 SU40X80N
The AirTAC SU40X80N is a discontinued double-acting profile-type cylinder with a 40mm bore, 80mm stroke, and NBR seals. It delivers 628N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU40X80N, a direct replacement sharing the exact same profile body, output force, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a position switch. The SAU upgrade also transitions to CMSG/DMSG/EMSG sensors for magnetized variants and adds a SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU40X80N Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X80N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X80N |
| Bore size | Ø40 mm |
| Stroke | 80 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 SAU40X80N 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 SAU40X80N 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 SU40X80N
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 SU40X80N Is Used
Clamping Mechanisms
Secures mid-weight workpieces during machining, utilizing the 628N push force at 0.5MPa for firm, stable holding.
Package Diverting
Pushes goods off a belt line with an 80mm stroke, moving items safely up to the 32kg vertical lift equivalent.
Gate Actuation
Operates lightweight access doors and material flow gates, benefiting from the compact profile body design.
Replacing the Airtac SU32~50 Standard Cylinder SU40X80N with the SAU40X80N
To replace this discontinued SU40X80N, order the SAU40X80N and verify your 1/4" port, M12x1.25 rod thread, and SC-series mounting. This NBR-seal variant operates from -20 to +70C; choose Viton H for 150C. Since this specific SKU has no magnet (-S), it cannot support sensing. If you need switches, order the SAU40X80NS and migrate to CMSG/DMSG/EMSG sensors. For loads, note a plain cylinder drifts without live air; use an external rod lock for holding. At 80mm stroke, side-load is minimal, but always guide the rod. If you need more force, the 50mm bore yields 982N push at 0.5MPa.
Replacement checklist
- ✓ Same bore / stroke → SAU40X80N
- ✓ 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 SU40X80N FAQ
Yes, the SU40X80N is discontinued. The direct replacement is the SAU40X80N, which matches the 40mm bore, 80mm stroke, 1/4" port, and SC-series mounting.
It provides 628N push and 528N pull at 0.5MPa, 879N at 0.7MPa, and a 128kgf max at 1.0MPa. Because this specific SKU lacks a magnet, it cannot take sensors; magnetized SAU replacements use CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X80N
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X80N replacement — usually within 7-8 hours.