This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X700, 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 SU40X700
The AirTAC Airtac SU32~50 Standard Cylinder SU40X700 is a double-acting profile-type standard cylinder with a Ø40mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X700, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke700 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X700
- 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 SU40X700
The AirTAC SU40X700 is a discontinued double-acting profile-type cylinder with a 40mm bore and 700mm stroke. Delivering 628 N push force at 0.5 MPa, it uses an extruded aluminium barrel and adjustable air cushions to stay more compact than an ISO 15552 unit of the same size. AirTAC replaced this legacy unit with the SAU40X700, a direct upgrade retaining the exact 1/4" port, M12x1.25 rod thread, 21mm cushions and SC-series mounting.
Upgrading to the SAU40X700 preserves your body geometry and output force, but introduces current CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches, and opens up the SAUF built-in-valve variant the SU line lacked. Because this specific SKU lacks a magnet, it cannot accept any sensor.
Airtac SU32~50 Standard Cylinder SU40X700 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X700 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X700 |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAU40X700 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 SAU40X700 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 SU40X700
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 SU40X700 Is Used
Long-Stroke Material Transfer
Pushes packages between conveyor lanes over a 700mm distance using a safe 377 N working load, relying on adjustable end cushions to stop smoothly.
Scrap Ejection Chute
Ejects lightweight plastic parts from a moulding cell, where the compact 40mm profile body saves space while delivering 628 N push at 0.5 MPa.
Replacing the Airtac SU32~50 Standard Cylinder SU40X700 with the SAU40X700
To replace the SU40X700, order the SAU40X700 direct equivalent, verifying your 1/4" port thread (PT, G or NPT) and SC-series mounting brackets (LB, FA, FB, CA, CB, TC). Since this SKU has no magnet, it cannot support sensing; if you need position detection, select an SAU model with the -S option and use CMSG/DMSG/EMSG switches. For loads needing 879 N at 0.7 MPa, this 40mm bore is ideal, but if you need less force a 32mm bore offers 402 N. Remember that a standard cylinder drifts on air loss—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve for held loads. Finally, at 700mm stroke, prevent rod bending by guiding the load externally to avoid side-load stress.
Replacement checklist
- ✓ Same bore / stroke → SAU40X700
- ✓ 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 SU40X700 FAQ
Yes, the SU40X700 is discontinued. The direct replacement is the AirTAC SAU40X700. It shares the same 40mm bore, 700mm stroke, 1/4" port, M12x1.25 rod thread and SC-series mounting accessories, so it fits the same application without mechanical changes.
At 0.5 MPa it provides 628 N push and 528 N pull force, rising to 879 N push at 0.7 MPa and a theoretical max of 128 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot take a sensor; the SAU replacement with the -S option uses CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B family.
Request a Quote for the SAU40X700
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X700 replacement — usually within 7-8 hours.