This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X70STC, 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 SU63X70STC
The AirTAC Airtac SU63-100 Standard Cylinder SU63X70STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 70mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X70STC, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke70 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X70STC
- 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 SU63X70STC
The AirTAC SU63X70STC is a discontinued double-acting profile-type cylinder with a 63mm bore and 70mm stroke, delivering 1559N push force at 0.5MPa via a 3/8" port. Its extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this unit with the SAU63X70STC, a direct replacement sharing the exact same force, port, and SC-series TC mounting footprint.
Note that the -S magnet on this legacy unit required CS1-B/DS1-B switches, whereas the SAU replacement uses current CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked. Remember, the air cushion only decelerates; it does not hold the load.
Airtac SU63-100 Standard Cylinder SU63X70STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X70STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X70STC |
| Bore size | Ø63 mm |
| Stroke | 70 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 SAU63X70STC 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 SAU63X70STC 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 SU63X70STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×70 | 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 SU63X70STC Is Used
Package Diversion
Pushes medium-weight cartons off a sorting line using the 1559N thrust at 0.5MPa, with the TC mount providing a rigid pivot for the swing arm.
Pallet Stopper Gate
Acts as a pneumatic stop for incoming pallets, absorbing impact via the 21mm adjustable cushion while holding position until the release signal.
Clamp Actuation
Secures workpieces in a machining fixture, delivering 1402N pull force to hold the part firmly against cutting forces.
Replacing the Airtac SU63-100 Standard Cylinder SU63X70STC with the SAU63X70STC
To replace this SU63X70STC, order the SAU63X70STC keeping the 63mm bore, 70mm stroke, 3/8" port, and TC mounting. If your application needs to hold a load vertically without live air, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. Sizing both ways: a 50mm bore offers 982N push at 0.5MPa, while an 80mm bore yields 2513N. Since this unit has the -S magnet, you must upgrade to CMSG/DMSG/EMSG sensors for the SAU. If faster actuation is needed, consider the SAUF built-in-valve variant. For any stroke over 300mm, ensure external guides to prevent rod bending from side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU63X70STC
- ✓ 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 SU63X70STC FAQ
Yes, the AirTAC SU63X70STC is discontinued. The direct replacement is the SAU63X70STC, which matches the 63mm bore, 70mm stroke, 1559N force, 3/8" port, and TC mounting. You simply order the SAU equivalent.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. Because this model includes a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X70STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X70STC replacement — usually within 7-8 hours.