This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X20S, 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 SU63X20S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X20S is a double-acting profile-type standard cylinder with a Ø63mm bore and 20mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X20S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X20S
- 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 SU63X20S
The AirTAC SU63X20S is a discontinued double-acting profile cylinder with a 63mm bore and 20mm stroke, delivering 1559N push force at 0.5MPa via its 3/8" port. AirTAC replaced this end-of-line unit with the SAU63X20S. This direct upgrade matches the original bore, stroke, force, port size, and SC-series mounting footprint exactly.
Because of its compact extruded aluminum body, it is shorter than an ISO 15552 cylinder of the same bore. The -S magnet on this legacy model drove CS1-B/DS1-B switches, but the SAU replacement now uses CMSG/DMSG/EMSG sensors.
Airtac SU63-100 Standard Cylinder SU63X20S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X20S |
| Bore size | Ø63 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X20S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X20S 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 SU63X20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | 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 SU63X20S Is Used
Short-Stroke Clamping
Ideal for holding heavy metal castings during machining, utilizing the 1559N push force across a tight 20mm travel.
Package Diverting
Provides robust actuation for heavy-duty sorting gates where a compact profile body is required to fit tight frames.
Pallet Stopping
Acts as a high-force end-stop for loaded pallets on roller conveyors, safely absorbing kinetic energy using adjustable cushions.
Replacing the Airtac SU63-100 Standard Cylinder SU63X20S with the SAU63X20S
To replace this SU63X20S, order the SAU63X20S direct equivalent, confirming the 3/8" port, M16x1.5 rod thread, and SC-series mounting hardware are retained. If your machine relied on the -S magnet for positioning, note that the SAU upgrade requires current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Sizing both ways: a 50mm bore offers 982N push at 0.5MPa, while an 80mm bore yields 2513N. A plain cylinder drifts without live air, so add an external rod lock or pilot-operated check valve for load holding. The SAUF variant even adds a built-in 4M solenoid valve the SU lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU63X20S
- ✓ 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 SU63X20S FAQ
Yes, the SU63X20S is discontinued. The direct replacement is the AirTAC SAU63X20S. It shares the identical 63mm bore, 20mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application directly.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. The -S magnet works with legacy CS1-B/DS1-B switches, but the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Request a Quote for the SAU63X20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X20S replacement — usually within 7-8 hours.