This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1250S, 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 SU63X1250S
The AirTAC SU63-100 Standard Cylinder SU63X1250S is a double-acting profile-type standard cylinder with a Ø63mm bore and 1250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1250S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X1250S
- 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 SU63X1250S
The AirTAC SU63X1250S is a discontinued double-acting profile-type cylinder with a 63 mm bore and 1250 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, peaking at 318 kgf. The direct replacement is the SAU63X1250S, matching the bore, stroke, force, 3/8" port, and SC-series mounts.
The SAU upgrade switches the -S magnet from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in-valve variant the SU lacked.
Airtac SU63-100 Standard Cylinder SU63X1250S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X1250S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1250S |
| Bore size | Ø63 mm |
| Stroke | 1250 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 SAU63X1250S 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 SAU63X1250S 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 SU63X1250S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1250 | 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 SU63X1250S Is Used
Long-Stroke Diversion
Pushes heavy pallets across a 1.25 m transfer lane using the 1559 N push force at 0.5 MPa.
Large Blank Ejection
Ejects molded composite parts from a press, relying on the 21 mm cushions to decelerate.
Replacing the Airtac SU63-100 Standard Cylinder SU63X1250S with the SAU63X1250S
To replace this SU63X1250S, order the SAU63X1250S with the exact 63 mm bore, 1250 mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting. Because the -S magnet is present, note that the SAU requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B. For loads needing holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. Neighbouring bores: a 50 mm gives 982 N [email protected], an 80 mm gives 2513 N. At 1250 mm, use external guides to prevent rod bending from side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU63X1250S
- ✓ 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 SU63X1250S FAQ
Yes, the SU63X1250S is discontinued. The direct replacement is the AirTAC SAU63X1250S. It matches the 63 mm bore, 1250 mm stroke, 3/8" port, output force, and SC-series mounting. The SAU body also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa push is 2182 N, and at 0.9 MPa it is 2805 N. The theoretical max is 318 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and it has a 3/8" port with M16x1.5 rod thread.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X1250S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1250S replacement — usually within 7-8 hours.