This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X85S, 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 SU63X85S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X85S is a double-acting profile-type standard cylinder with a Ø63mm bore and 85mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X85S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke85 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X85S
- 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 SU63X85S
The AirTAC SU63X85S is a discontinued double-acting profile-type cylinder with an integrated piston magnet. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it delivers a push force of 1559 N and pull of 1402 N at 0.5 MPa. It is shorter and more compact than an ISO 15552 cylinder of the same bore, utilizing a 20 mm piston rod, M16x1.5 rod thread, and a fixed 3/8" port.
AirTAC replaced this end-of-life unit with the SAU63X85S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting. The upgrade introduces current CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches used on this -S model, and adds the SAUF built-in 4M solenoid valve option the SU line lacked.
Airtac SU63-100 Standard Cylinder SU63X85S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X85S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X85S |
| Bore size | Ø63 mm |
| Stroke | 85 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 SAU63X85S 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 SAU63X85S 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 SU63X85S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×85 | 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 SU63X85S Is Used
Mid-Tonnage Pressing
Applies the 1559 N push force at 0.5 MPa for securely seating bearings or stamping light components in automated fabrication cells.
Package Diversion
Drives 85 mm stroke diverting arms on packaging lines, moving moderate loads at operational speeds between 30-800 mm/s.
Replacing the Airtac SU63-100 Standard Cylinder SU63X85S with the SAU63X85S
To replace this discontinued SU63X85S, order the SAU63X85S direct equivalent, verifying your 3/8" port, M16x1.5 rod thread, and SC-series mounting hardware. Because this SKU includes a magnet (-S), you must upgrade your legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family. If your application needs integrated flow control, the SAU family offers the SAUF variant with a built-in 4M solenoid valve, a feature the original SU lacked. For sizing alternatives, a 50 mm bore provides 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end—so use an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU63X85S
- ✓ 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 SU63X85S FAQ
Yes, the SU63X85S is discontinued. The direct replacement is the AirTAC SAU63X85S. It shares the identical 63 mm bore, 85 mm stroke, output force, 3/8" port, and SC-series mounting, but the SAU version requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting cylinder has a fixed 3/8" port. It generates a push force of 1559 N and pull force of 1402 N at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa.
Request a Quote for the SAU63X85S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X85S replacement — usually within 7-8 hours.