This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD80X235S, 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 SUD80X235S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X235S is a double-acting profile-type standard cylinder with a Ø80mm bore and 235mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD80X235S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke235 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X235S
- 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 SUD80X235S
The AirTAC SUD80X235S is a discontinued double-acting double-rod profile cylinder featuring an extruded aluminum barrel and a 3/8 inch air port. Because a rod exits both ends on one piston, both faces use the rod-side area, making push and pull force equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. This model is replaced by the SAUD80X235S direct upgrade, which retains the exact bore, stroke, force, port, and FA/LB mounting.
The double-rod design prevents piston rotation and lets the back rod carry a sensor cam. This SUD80X235S has a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAUD uses CMSG/DMSG/EMSG sensors.
Airtac SUD Series Double Rod Cylinder SUD80X235S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X235S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X235S |
| Bore size | Ø80 mm |
| Stroke | 235 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD80X235S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAUD80X235S 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 SUD80X235S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×235 | 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 SUD80X235S Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously using both rod ends, ensuring perfectly synchronized clamping and milling without rotational drift.
Transfer Pusher Assembly
Transfers workpieces across a conveyor using the equal push and pull force, preventing binding during the return stroke in compact packaging lines.
Guided Lifting Jig
Lifts guided jigs vertically where the double rod provides inherent anti-rotation, keeping the payload stable without external linear bearings.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X235S with the SAUD80X235S
To replace the discontinued SUD80X235S, install the SAUD80X235S direct: same 80mm bore, 235mm stroke, 3175 N equal-both-ways force, 3/8 inch port, and FA/LB mounting. When sizing both ways, verify the 2268 N @0.5 MPa output fits your load, or step to neighboring bores. A double rod is right when you need anti-rotation or want to drive two tools. For the -S magnet, change CS1-B/DS1-B switches to CMSG/DMSG/EMSG. For this 235mm stroke (under 300mm), side-load is minimal. Note: air cushions only decelerate; use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X235S
- ✓ 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 SUD80X235S FAQ
Yes, the SUD80X235S is discontinued. The direct replacement is the SAUD80X235S, offering the same 80mm bore, 235mm stroke, 3/8 inch port, and FA/LB mounting. You only need to upgrade the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
The SUD80X235S delivers equal force both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. It operates at 30-800 mm/s, uses a 3/8 inch port, and features a 28mm adjustable cushion at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD80X235S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD80X235S replacement — usually within 7-8 hours.