This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X950SN, 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 SU40X950SN
The AirTAC SU32~50 Standard Cylinder SU40X950SN is a double-acting profile-type standard cylinder with a Ø40mm bore and 950mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X950SN, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke950 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X950SN
- 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 SU40X950SN
The AirTAC SU40X950SN is a discontinued double-acting profile cylinder with a 40mm bore and 950mm stroke. It delivers 628N push and 528N pull at 0.5MPa through a 1/4" port. The direct replacement is the SAU40X950SN, matching the body, stroke, force, port, and SC-series mounting. This extruded aluminium profile is more compact than an ISO 15552 cylinder of the same bore.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on this SU model. The SAU family also adds a SAUF variant with a built-in valve, an option the original SU line lacked. This unit uses NBR seals.
Airtac SU32~50 Standard Cylinder SU40X950SN Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X950SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X950SN |
| Bore size | Ø40 mm |
| Stroke | 950 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 SAU40X950SN 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 SAU40X950SN 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 SU40X950SN
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×950 | 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 SU40X950SN Is Used
Long-Stroke Diversion
Pushes packages across transfer lines using the full 950mm travel, relying on adjustable end cushions to decelerate the 40mm bore smoothly.
Component Ejection
Clears machined parts from a work area over an extended distance, utilizing the compact profile body to save machine footprint.
Replacing the Airtac SU32~50 Standard Cylinder SU40X950SN with the SAU40X950SN
To replace this SU40X950SN, order the SAU40X950SN direct equivalent, verifying the 40mm bore, 950mm stroke, 1/4" port, M12x1.25 rod thread, and SC-series mounting. Because this model has an -S magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. The -N denotes NBR seals, suitable for standard -20 to +70C temperatures. For sizing alternatives, a 32mm bore offers 402N push at 0.5MPa, while a 50mm bore provides 982N. A plain cylinder drifts without live air; the cushions only decelerate, so use an external rod lock for held loads. At 950mm, prevent rod bending by guiding the load externally.
Replacement checklist
- ✓ Same bore / stroke → SAU40X950SN
- ✓ 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 SU40X950SN FAQ
Yes, the SU40X950SN is discontinued. The direct replacement is the SAU40X950SN. It matches the 40mm bore, 950mm stroke, 628N push force, 1/4" port, and SC-series mounting. You must upgrade your sensors: the SAU uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
At 0.5MPa it pushes 628N and pulls 528N. At 0.7MPa push is 879N, at 0.9MPa it is 1130N, and the theoretical max is 128kgf at 1.0MPa. The -S magnet works with legacy CS1-B/DS1-B switches. The 1/4" port is fixed by the 40mm bore, and speed ranges 30-800mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X950SN
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