This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X320STC, 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 SU63X320STC
The AirTAC Airtac SU63-100 Standard Cylinder SU63X320STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 320mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X320STC, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke320 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X320STC
- 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 SU63X320STC
The AirTAC SU63X320STC is a discontinued double-acting profile-type cylinder with a 63 mm bore and 320 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU63X320STC, a direct alternative retaining the exact body dimensions, stroke, output force, port size, and SC-series TC mounting interface.
This extruded aluminium profile is shorter than an equivalent ISO 15552 cylinder. The SAU upgrade switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in 4M solenoid valve option the SU line lacked.
Airtac SU63-100 Standard Cylinder SU63X320STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X320STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X320STC |
| Bore size | Ø63 mm |
| Stroke | 320 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 SAU63X320STC 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 SAU63X320STC 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 SU63X320STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×320 | 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 SU63X320STC Is Used
Pallet Diversion
Uses the 1559 N push force at 0.5 MPa to deflect heavy pallets along a packaging line, while the 320 mm stroke clears the conveyor belt entirely.
Component Ejection
Pushes machined aluminium parts out of a CNC enclosure, relying on the adjustable 21 mm air cushions to decelerate the 320 mm travel smoothly.
Replacing the Airtac SU63-100 Standard Cylinder SU63X320STC with the SAU63X320STC
To replace this discontinued SU63X320STC, order the SAU63X320STC. Verify your 3/8" port, M16x1.5 rod thread, and TC mounting accessory are retained. Because the -S magnet is present, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If sizing alternatives, the 80 mm bore yields 2513 N at 0.5 MPa, while the 50 mm bore yields 982 N. At 320 mm stroke, prevent rod bending by using an external guide to absorb side loads. A plain cylinder drifts without live air; the 21 mm cushions only decelerate. For load holding on air loss, add an external rod lock or pilot-operated check valve. The SAUF valve-integrated variant is available if self-switching is needed.
Replacement checklist
- ✓ Same bore / stroke → SAU63X320STC
- ✓ 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 SU63X320STC FAQ
Yes, the SU63X320STC is discontinued. The direct replacement is the AirTAC SAU63X320STC. It matches the 63 mm bore, 320 mm stroke, 3/8" port, force, and TC mounting. The only change is that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 3/8" port bore delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. The piston speed ranges from 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X320STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X320STC replacement — usually within 7-8 hours.