This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD50X220S, 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 SUD Series Double Rod Cylinder SUD50X220S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X220S is a double-acting profile-type standard cylinder with a Ø50mm bore and 220mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD50X220S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke220 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X220S
- 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 SUD Series Double Rod Cylinder SUD50X220S
The AirTAC SUD50X220S is a double-acting, double-rod profile cylinder featuring a 50mm bore, 220mm stroke, and a 1/4 inch port. A rod exits both ends on one piston, meaning both faces use the rod-side area and push and pull force are equal at 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa. The extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore. This SUD model is discontinued and the direct replacement is the SAUD50X220S, which keeps the same bore, stroke, force, port, and FA/LB mounting.
Because the second rod acts as an anti-rotation guide and can carry a sensor cam for dual-tool driving, it offers distinct mechanical advantages. The built-in piston magnet (-S) works with legacy CS1-B/DS1-B switches, while the SAUD replacement upgrades to current CMSG/DMSG/EMSG sensors. Note that a plain cylinder does not hold its load on air loss; the air cushion only decelerates near stroke end, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD50X220S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X220S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X220S |
| Bore size | Ø50 mm |
| Stroke | 220 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 SAUD50X220S 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 SAUD50X220S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD50X220S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×220 | 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 SUD Series Double Rod Cylinder SUD50X220S Is Used
Dual-Tool Pick and Place
Drives two opposing grippers simultaneously using both rod ends, ensuring perfectly synchronized part transfer without adding a second cylinder.
Anti-Rotation Divert Gate
Uses the inherent torsional resistance of the double-rod design to hold a diverting flap steady on a high-speed packaging line.
External Cam Sensing
Mounts a position cam on the rear protruding rod to trigger legacy CS1-B/DS1-B switches without cluttering the primary work area.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X220S with the SAUD50X220S
To replace the discontinued SUD50X220S, use the direct replacement SAUD50X220S, which preserves the 50mm bore, 220mm stroke, 1/4 inch port, and FA/LB mounting compatibility with the AirTAC SC series. When sizing both ways, verify the equal push and pull force against the neighbouring 40mm and 63mm bores to ensure the 825 N at 0.5 MPa baseline fits your system. A double rod is right when you need anti-rotation stability or a back rod to carry a sensor cam. If upgrading, note the -S sensor change from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG. For this 220mm stroke, which is near or above 300mm, carefully check the side-load line to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X220S
- ✓ 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 SUD Series Double Rod Cylinder SUD50X220S FAQ
Yes, the SUD50X220S is discontinued. The direct replacement is the SAUD50X220S. It shares the same 50mm bore, 220mm stroke, 1/4 inch port, and FA/LB mounting, but the SAUD uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Because it is a double-rod cylinder, the force is equal both ways. It outputs 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa. It never quotes a larger single-rod push value.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD50X220S
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