This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X400STC, 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 SU80X400STC
The AirTAC SU63-100 Standard Cylinder SU80X400STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X400STC, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X400STC
- 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 SU80X400STC
The AirTAC SU80X400STC is a discontinued double-acting profile cylinder with an 80mm bore and 400mm stroke. The direct replacement is the SAU80X400STC, matching the 3/8" port, M20x1.5 rod thread, and 513 kgf maximum force.
This extruded aluminum profile body is more compact than an ISO 15552 cylinder of the same bore and shares AirTAC SC-series mounting. The -S magnet on this legacy unit works with CS1-B/DS1-B switches, whereas the SAU replacement uses current CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF built-in-valve option the SU line lacked. Note that a plain cylinder does not hold load without live air; the 28 mm adjustable cushions only decelerate near stroke end.
Airtac SU63-100 Standard Cylinder SU80X400STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X400STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X400STC |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAU80X400STC 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 SAU80X400STC 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 SU80X400STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SU80X400STC Is Used
Heavy Package Diversion
Pushes heavy pallets or totes off a main conveyor line using the 2513 N push force at 0.5 MPa, with the 400mm stroke clearing the belt path completely.
Press Ejection
Ejects dense formed parts from a press bed, relying on the 28 mm adjustable air cushions to decelerate the 25mm rod smoothly at the end of the 400mm travel.
Replacing the Airtac SU63-100 Standard Cylinder SU80X400STC with the SAU80X400STC
To replace this discontinued SU80X400STC, order the SAU80X400STC direct equivalent, verifying the 80mm bore, 400mm stroke, 3/8" port, M20x1.5 thread, and TC mounting interface. Because this SKU includes the -S magnet, you must upgrade your sensors: the legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG switches on the SAU. Sizing both ways, a 63mm bore provides 1559 N push at 0.5 MPa, while a 100mm bore offers 3927 N. For the 400mm stroke, use external guides to prevent rod bending under side loads. To hold a load securely on air loss, add an external rod lock or pilot-operated check valve, as the cushions only decelerate. If self-switching is needed, explore the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU80X400STC
- ✓ 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 SU80X400STC FAQ
Yes, the SU80X400STC is discontinued. The direct replacement is the SAU80X400STC. It matches the 80mm bore, 400mm stroke, 3/8" port, 513 kgf max force, and TC mounting. The SAU body is a direct bolt-in profile cylinder, but if your SU has the -S magnet, you must switch from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors.
The 80mm bore features a 3/8" port and a 25mm piston rod. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X400STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X400STC replacement — usually within 7-8 hours.