This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X840S, 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 SU63-100 Standard Cylinder SU80X840S
The AirTAC Airtac SU63-100 Standard Cylinder SU80X840S is a double-acting profile-type standard cylinder with a Ø80mm bore and 840mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X840S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke840 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X840S
- 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 SU63-100 Standard Cylinder SU80X840S
The AirTAC SU80X840S is a discontinued double-acting profile-type cylinder with an 80mm bore and 840mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa. AirTAC replaced this legacy unit with the SAU80X840S, a direct replacement retaining the exact bore, stroke, 3/8" port, and SC-series mounting. The extruded aluminum profile is more compact than a standard ISO 15552 cylinder of the same size.
Because this is an -S magnet model, note the sensor family changes: the old CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU never had.
Airtac SU63-100 Standard Cylinder SU80X840S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X840S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X840S |
| Bore size | Ø80 mm |
| Stroke | 840 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 SAU80X840S 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 SAU80X840S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU63-100 Standard Cylinder SU80X840S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×840 | 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 SU63-100 Standard Cylinder SU80X840S Is Used
Long-Stroke Diversion
Pushes heavy pallets sideways across a 840mm transfer line using the 2513N thrust at 0.5MPa.
Large Door Actuation
Opens heavy machine safety doors over a long travel distance where a compact profile body saves space.
Replacing the Airtac SU63-100 Standard Cylinder SU80X840S with the SAU80X840S
To replace this SU80X840S, order the SAU80X840S. Verify your 3/8" port, M20x1.5 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB) which remain identical. Because this is an -S SKU, you must upgrade your legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG family. If sizing both ways, a 63mm bore provides 1559N push at 0.5MPa while a 100mm bore yields 3927N. For the 840mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; the cushions only decelerate, so add an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU80X840S
- ✓ 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 SU63-100 Standard Cylinder SU80X840S FAQ
Yes, the SU80X840S is discontinued. The direct replacement is the AirTAC SAU80X840S. It shares the same 80mm bore, 840mm stroke, 2513N force, 3/8" port, and SC-series mounting, so it fits your existing application directly.
It provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a max of 513kgf at 1.0MPa. Because this is an -S model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X840S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X840S replacement — usually within 7-8 hours.