This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X630S, 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 SU50X630S
The AirTAC SU32~50 Standard Cylinder SU50X630S is a double-acting profile-type standard cylinder with a Ø50mm bore and 630mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X630S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke630 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X630S
- 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 SU50X630S
The AirTAC SU50X630S is a discontinued double-acting profile-type cylinder with a 50mm bore and 630mm stroke. Delivering 982 N push force at 0.5 MPa, it features an extruded aluminum barrel and a 1/4" port. AirTAC replaced this EOL unit with the SAU50X630S, a direct alternative retaining the exact body, stroke, force, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and adds an optional SAUF built-in 4M valve. Note that plain cylinders drift without live air; use an external rod lock for holding. At 630mm, external guides prevent rod bending.
Airtac SU32~50 Standard Cylinder SU50X630S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X630S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X630S |
| Bore size | Ø50 mm |
| Stroke | 630 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 SAU50X630S 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 SAU50X630S 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 SU50X630S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×630 | 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 SU50X630S Is Used
Long-Reach Diverting
Pushes packages across a 600mm wide conveyor belt using the 630mm stroke, relying on the 982 N push force at 0.5 MPa to deflect heavy cartons without bouncing.
Vertical Lift Gate
Raises a lightweight access hatch with a safe vertical lift capacity of roughly 50 kg, requiring an external pilot-operated check valve to hold the load securely during air loss.
Pneumatic Ejector
Ejects molded parts from a press over a 630mm distance, utilizing adjustable end cushions to decelerate the 20mm rod smoothly before the end of travel.
Replacing the Airtac SU32~50 Standard Cylinder SU50X630S with the SAU50X630S
To replace the SU50X630S, order the SAU50X630S direct equivalent, verifying the 50mm bore, 630mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Because this SKU includes a magnet (-S), you must migrate from legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG family. For load holding, remember the air cushion only decelerates; a pilot-operated check valve or external rod lock is required to prevent drift. Given the 630mm stroke, use external guides to mitigate side-load and rod-bending risks. If you need more force, the 63mm bore offers 1559 N push at 0.5 MPa; if less is needed, the 40mm bore provides 628 N. The SAUF variant offers a built-in valve if desired.
Replacement checklist
- ✓ Same bore / stroke → SAU50X630S
- ✓ 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 SU50X630S FAQ
Yes, the SU50X630S is discontinued. The direct replacement is the SAU50X630S, which shares the same 50mm bore, 630mm stroke, 1/4" port, output force, and SC-series mounting. You can install the SAU without modifying your existing framework.
The SAU50X630S matches the SU force ratings: 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 your old model has a magnet (-S), the legacy CS1-B/DS1-B switches are obsolete; you must upgrade to CMSG/DMSG/EMSG sensors for the SAU replacement.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X630S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X630S replacement — usually within 7-8 hours.