This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X80H, 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 SU40X80H
The AirTAC Airtac SU32~50 Standard Cylinder SU40X80H 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 SAU40X80H, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X80H
- 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 SU40X80H
The AirTAC SU40X80H is a discontinued double-acting profile-type cylinder featuring a 40mm bore, 80mm stroke, and Viton H high-temperature seals (0-150 C). Built with an extruded aluminium barrel and adjustable air cushions at both ends, it delivers 628 N push and 528 N pull at 0.5 MPa. This compact profile body is shorter than an ISO 15552 cylinder of the same bore and shares AirTAC SC-series mounting accessories.
AirTAC replaced this end-of-life unit with the SAU40X80H, a direct replacement retaining the exact bore, stroke, 1/4" port, M12x1.25 rod thread, and output force. Note that this non-magnetic SKU cannot accept a sensor, and the SAU upgrade introduces a built-in valve (SAUF) option the SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X80H Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X80H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X80H |
| 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 SAU40X80H 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 SAU40X80H 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 SU40X80H
| 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 SU40X80H Is Used
Divert and Gate
Provides reliable 80mm stroke actuation for diverting medium-weight packages on thermal processing lines where standard NBR seals would degrade.
Clamping Fixtures
Generates 528 N pull force at 0.5 MPa for holding workpieces securely during machining, with compact profile dimensions saving valuable cell space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X80H with the SAU40X80H
To replace this discontinued SU40X80H, order the SAU40X80H direct equivalent. Confirm the 1/4" port (default PT thread), M12x1.25 rod-end thread, and SC-series mounting hardware (LB/FA/FB/CA/CB) are retained. Because this specific SKU lacks a magnet (-S), it cannot accept a position switch; if sensing is required, specify an SAU40X80HS and migrate to the current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. When sizing, verify the 879 N push at 0.7 MPa is sufficient, or step up to a 50mm bore if greater thrust is needed. Remember that a standard cylinder does not hold load without live air—the 21 mm cushions only decelerate near stroke end—so add an external rod lock or pilot-operated check valve for vertical load holding. For automated actuation, consider the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X80H
- ✓ 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 SU40X80H FAQ
Yes, the AirTAC SU40X80H is discontinued. The direct replacement is the SAU40X80H. It shares the identical 40mm bore, 80mm stroke, 1/4" port, M12x1.25 rod thread, output force, and SC-series mounting, so it fits the same application directly. The SAU body also offers a new SAUF built-in valve option the SU line lacked.
The thrust ratings are 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, and a theoretical max of 128 kgf at 1.0 MPa. Because this specific SU40X80H SKU lacks a magnet, it cannot accept a magnetic sensor. If sensing is needed, order the SAU40X80HS replacement and use current CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X80H
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X80H replacement — usually within 7-8 hours.