This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X20, 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 SU80X20
The AirTAC Airtac SU63-100 Standard Cylinder SU80X20 is a double-acting profile-type standard cylinder with a Ø80mm bore and 20mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X20, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X20
- 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 SU80X20
The AirTAC SU80X20 is a discontinued double-acting profile-type cylinder with an 80mm bore and 20mm stroke. The direct replacement is the SAU80X20, matching the 3/8" port, M20x1.5 rod thread, output force, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also switches to CMSG/DMSG/EMSG switches for -S variants and introduces the SAUF built-in-valve option. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore. Note that the cushion only decelerates; use a rod lock for load holding.
Airtac SU63-100 Standard Cylinder SU80X20 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X20 |
| Bore size | Ø80 mm |
| Stroke | 20 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 SAU80X20 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 SAU80X20 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 SU80X20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 SU80X20 Is Used
Short-Stroke Clamping
Ideal for high-force 2513N clamping of heavy castings in machining fixtures where a 20mm stroke secures the part without excessive protrusion.
Transfer Diverters
Drives robust routing gates on heavy-duty package lines, using the compact 80mm profile body to fit within tight conveyor frame clearances.
Press Ejection
Provides a fast 30-800mm/s ejection stroke for stamped metal parts, relying on the 28mm adjustable cushions to brake the payload at stroke end.
Replacing the Airtac SU63-100 Standard Cylinder SU80X20 with the SAU80X20
To replace the SU80X20, order the SAU80X20. Confirm the 3/8" port, M20x1.5 thread, and SC-series mounting. Since this non-magnetic SKU cannot take a switch, migrate to an SAU80X20-S if you need sensing, noting the newer CMSG/DMSG/EMSG sensors replace the legacy CS1-B/DS1-B. For sizing, a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. The 28mm cushions only decelerate; add an external pilot-operated check valve to hold loads. The 20mm stroke is highly compact, but if extending beyond 300mm, guide the rod to prevent side-load bending. The SAUF valve-integrated variant is available if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU80X20
- ✓ 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 SU80X20 FAQ
Yes, the SU80X20 is discontinued. The direct replacement is the AirTAC SAU80X20. It shares the exact same 80mm bore, 20mm stroke, 2513N force at 0.5MPa, 3/8" port, and SC-series mounting accessories, so it fits the same application directly.
It pushes 2513N and pulls 2268N at 0.5MPa, pushes 3518N at 0.7MPa, and reaches a max of 513kgf at 1.0MPa. The 28mm cushions only decelerate the piston near stroke end; a plain cylinder does not hold load on air loss. For load holding, install an external rod lock or pilot-operated check valve.
Request a Quote for the SAU80X20
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X20 replacement — usually within 7-8 hours.