This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X765, 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 SU40X765
The AirTAC Airtac SU32~50 Standard Cylinder SU40X765 is a double-acting profile-type standard cylinder with a Ø40mm bore and 765mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X765, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke765 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X765
- 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 SU40X765
The AirTAC SU40X765 is a discontinued double-acting profile-type cylinder with a 40mm bore and 765mm stroke. It delivers 628N push force at 0.5MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU40X765, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors, replacing the older CS1-B/DS1-B switches, and adds an optional SAUF variant with a built-in 4M solenoid valve that the SU line lacked. This SKU has no magnet and cannot accept a sensor.
Airtac SU32~50 Standard Cylinder SU40X765 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X765 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X765 |
| Bore size | Ø40 mm |
| Stroke | 765 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 SAU40X765 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 SAU40X765 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 SU40X765
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×765 | 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 SU40X765 Is Used
Long-Stroke Diversion
Actuates routing gates on packaging lines where the 765mm extension shifts products between parallel conveyors using the 628N push force.
Extended Reach Transfer
Pushes components across a 765mm gap between machining stations, requiring external guide rails to prevent rod bending during the traverse.
Replacing the Airtac SU32~50 Standard Cylinder SU40X765 with the SAU40X765
To replace this SU40X765, order the SAU40X765 and verify your 1/4" port, M12x1.25 rod thread, and SC-series mounting hardware. Because this is a non-magnet SKU, it cannot support position sensing; if detection is needed, you must migrate to an SAU-S model and use CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B. If you need higher force, the 50mm bore offers 982N push at 0.5MPa; for lower force, the 32mm bore provides 402N. With a 765mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU40X765
- ✓ 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 SU40X765 FAQ
Yes, the SU40X765 is discontinued. The direct replacement is the AirTAC SAU40X765. It shares the same 40mm bore, 765mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it fits the same application without mechanical modifications.
The 40mm bore uses a 1/4" port. At 0.5MPa it provides 628N push and 528N pull force. At 0.7MPa push is 879N, and at 0.9MPa it is 1130N. The theoretical maximum force is 128kgf at 1.0MPa. Operating speed ranges from 30-800mm/s.
Request a Quote for the SAU40X765
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X765 replacement — usually within 7-8 hours.