This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X345, 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 SU63X345
The AirTAC SU63-100 Standard Cylinder SU63X345 is a double-acting profile-type standard cylinder with a Ø63mm bore and 345mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X345, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke345 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X345
- 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 SU63X345
The AirTAC SU63X345 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 345 mm stroke. It delivers 1559 N push force at 0.5 MPa via a 3/8" port. AirTAC replaced this unit with the SAU63X345, a direct sharing the exact body dimensions, output force, and SC-series mounting.
When upgrading, the SAU body accepts current CMSG/DMSG/EMSG sensors, whereas this legacy SU lacked a magnet entirely and cannot take a switch. The SAU line also introduces a SAUF variant with a built-in 4M valve the SU never had.
Airtac SU63-100 Standard Cylinder SU63X345 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X345 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X345 |
| Bore size | Ø63 mm |
| Stroke | 345 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 SAU63X345 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 SAU63X345 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 SU63X345
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×345 | 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 SU63X345 Is Used
Carton Diverting
Pushes heavy packages on a packaging line with a safe 935 N working load, utilizing the 345 mm stroke to clear the conveyor belt entirely.
Pallet Stopping
Acts as a robust end-stop for inbound pallets, absorbing kinetic energy via the 21 mm adjustable air cushions before holding the load in place.
Clamp Actuation
Secures large aluminum extrusions during machining operations, providing up to 2805 N of clamping thrust at 0.7 MPa operating pressure.
Replacing the Airtac SU63-100 Standard Cylinder SU63X345 with the SAU63X345
To replace the SU63X345, order the SAU63X345, confirming the 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are retained. Because this SKU has no magnet (-S), it cannot support sensing; if you need position detection on the SAU, specify the -S option and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. If you need higher force, the 80 mm bore offers 2513 N push at 0.5 MPa; for less, the 50 mm bore provides 982 N. Note that a plain cylinder drifts without live air—the cushions only decelerate—so use an external rod lock or pilot-operated check valve for load holding. At 345 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same bore / stroke → SAU63X345
- ✓ 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 SU63X345 FAQ
Yes, the SU63X345 is discontinued. The direct replacement is the AirTAC SAU63X345, which matches the 63 mm bore, 345 mm stroke, 3/8" port, force output, and SC-series mounting accessories.
It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is required.
Request a Quote for the SAU63X345
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X345 replacement — usually within 7-8 hours.