This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1250, 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 SU50X1250
The AirTAC SU32~50 Standard Cylinder SU50X1250 is a double-acting profile-type standard cylinder with a Ø50mm bore and 1250mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1250, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke1250 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X1250
- 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 SU50X1250
The AirTAC SU50X1250 is a discontinued double-acting profile-type cylinder with a 50 mm bore and 1250 mm stroke. Delivering 982 N push force at 0.5 MPa, it features an extruded aluminium barrel and adjustable air cushions. Because this SU unit is end-of-life, the direct replacement is the SAU50X1250, matching the bore, stroke, 1/4" port, M16x1.5 rod thread and SC-series mounting.
The SAU upgrade retains the compact profile body but introduces current CMSG/DMSG/EMSG sensors (replacing the legacy CS1-B/DS1-B switches) and offers a new SAUF built-in-valve option the SU line lacked. As this 1250 mm unit exceeds the 1200 mm standard maximum, it is a non-standard made-to-order item.
Airtac SU32~50 Standard Cylinder SU50X1250 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X1250 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1250 |
| Bore size | Ø50 mm |
| Stroke | 1250 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 SAU50X1250 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 SAU50X1250 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 SU50X1250
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×1250 | 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 SU50X1250 Is Used
Extended Reach Diverters
Drives long-travel sorting arms on wide conveyor lines, utilising the 1250 mm stroke to push products across multiple lanes without intermediate transfers.
High-Bay Extraction
Extracts totes from deep storage shelving, where the 50 kg vertical lift capacity and extended reach handle standard pallet bins safely.
Large Press Loading
Feeds heavy sheet material into forming presses, relying on the 982 N push force at 0.5 MPa to move blanks into the tooling area.
Replacing the Airtac SU32~50 Standard Cylinder SU50X1250 with the SAU50X1250
To replace this discontinued SU50X1250, order the SAU50X1250 direct equivalent, verifying your 1/4" port, M16x1.5 thread, and SC-series mounting (LB/FA/FB/CA/CB). This SKU lacks a magnet (-S), so it cannot accept a sensor; if sensing is needed, specify an SAU-S model and migrate to CMSG/DMSG/EMSG switches. Because 1250 mm exceeds the 1200 mm standard maximum, expect a non-standard made-to-order part. At 0.5 MPa the 50 mm bore yields 982 N push and 825 N pull; neighbouring bores are 40 mm (628 N) and 63 mm (1559 N). For this long 1250 mm stroke, use an external guide to prevent rod bending and side-load damage. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU50X1250
- ✓ 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 SU50X1250 FAQ
Yes, the AirTAC SU50X1250 is discontinued. The direct replacement is the SAU50X1250. It shares the exact same 50 mm bore, 1250 mm stroke, output force, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
This double-acting cylinder delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. The 1250 mm stroke exceeds the 1200 mm standard maximum for this bore, making it a non-standard, made-to-order item. It uses a 1/4" port and has 21 mm adjustable cushions at both ends.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X1250
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1250 replacement — usually within 7-8 hours.