This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X70, 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 SU50X70
The AirTAC SU32~50 Standard Cylinder SU50X70 is a double-acting profile-type standard cylinder with a Ø50mm bore and 70mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X70, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke70 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X70
- 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 SU50X70
The AirTAC SU50X70 is a discontinued double-acting profile-type cylinder with a 50mm bore and 70mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 unit of the same bore and delivers 982 N push force at 0.5 MPa. AirTAC replaced this unit with the SAU50X70, a direct upgrade retaining the exact bore, stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a sensor. If sensing is needed, the SAU50X70 upgrade uses modern CMSG/DMSG/EMSG switches (the SU line relied on legacy CS1-B/DS1-B parts). Note that a standard cylinder drifts without live air; use a pilot-operated check valve to hold loads.
Airtac SU32~50 Standard Cylinder SU50X70 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X70 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X70 |
| Bore size | Ø50 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X70 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X70 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 SU50X70
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 SU50X70 Is Used
Component Clamping
Ideal for securing medium workpieces during machining, providing 982 N of clamping force at 0.5 MPa within a compact 70mm stroke.
Package Diverting
Drives short-stroke routing gates on assembly lines, moving light-to-medium product loads efficiently with a 1/4" air supply.
Pallet Stops
Acts as a pneumatic stop for palletized goods up to 50 kg, utilizing adjustable 21mm cushions to decelerate impacts at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X70 with the SAU50X70
To replace this discontinued SU50X70, order the SAU50X70. Confirm your 1/4" port (PT/G/NPT) and SC-series mounting (LB/FA/FB/CA/CB). Since this SKU has no magnet (-S), it cannot take a switch; if you need position sensing, the SAU replacement requires CMSG/DMSG/EMSG sensors rather than the old CS1-B/DS1-B. For sizing both ways: a 40mm bore offers 628 N push at 0.5 MPa, while a 63mm bore yields 1559 N. A plain cylinder does not hold load on air loss—add an external rod lock for suspension. The SAU family also offers the SAUF variant with a built-in 4M solenoid valve, a feature the SU lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU50X70
- ✓ 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 SU50X70 FAQ
Yes, the AirTAC SU50X70 is discontinued. The direct replacement is the SAU50X70. It shares the same 50mm bore, 70mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it fits the same application.
This double-acting cylinder provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU50X70 replacement uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU50X70
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X70 replacement — usually within 7-8 hours.