This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X250N, 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 SU63X250N
The AirTAC SU63-100 Standard Cylinder SU63X250N is a double-acting profile-type standard cylinder with a Ø63mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X250N, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X250N
- 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 SU63X250N
The AirTAC SU63X250N is a discontinued double-acting profile-type cylinder with a 63 mm bore and 250 mm stroke. Featuring an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same bore, sharing AirTAC SC-series mounting accessories. It delivers 1559 N push force at 0.5 MPa, utilizing a 20 mm piston rod, M16x1.5 rod thread, and a 3/8" port. This NBR seal variant operates within -20 to +70 C.
The direct replacement is the SAU63X250N, matching the bore, stroke, 318 kgf max force, port size, and SC mounting. The SAU upgrade introduces the CMSG/DMSG/EMSG sensor family and a new SAUF built-in valve option the SU lacked. Since this SKU lacks a magnet, it cannot accept a sensor.
Airtac SU63-100 Standard Cylinder SU63X250N Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X250N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X250N |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAU63X250N 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 SAU63X250N 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 SU63X250N
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SU63X250N Is Used
Package Diversion
Actuates routing gates on 3/8" port lines to redirect 79 kg cartons safely within the 935 N working load margin.
Pallet Stopping
Decelerates heavy pallets at 250 mm stroke, relying on the 21 mm adjustable air cushions to absorb the 1559 N kinetic impact.
Press Ejection
Ejects formed parts using 1402 N pull force at 0.5 MPa, where the NBR seals withstand standard factory ambient heat.
Replacing the Airtac SU63-100 Standard Cylinder SU63X250N with the SAU63X250N
To replace the discontinued SU63X250N, order the SAU63X250N, confirming the 63 mm bore, 250 mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting. Because this SKU lacks a -S magnet, it cannot support a sensor; if sensing is needed, specify an SAU with -S and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Sizing both ways: a 50 mm bore offers 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N. At 250 mm stroke, guide the load to prevent rod bending and side-load wear. Note that a plain cylinder drifts without live air; the cushion only decelerates, so use an external rod lock or pilot-operated check valve for load holding. The SAUF variant integrates a 4M valve if self-switching is desired.
Replacement checklist
- ✓ Same bore / stroke → SAU63X250N
- ✓ 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 SU63X250N FAQ
Yes, the SU63X250N is discontinued. The direct replacement is the SAU63X250N. It matches the 63 mm bore, 250 mm stroke, 318 kgf max force, 3/8" port, and SC-series mounting. The SAU body is identical, but if you need a magnet, the SAU uses CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B.
The 3/8" port bore delivers a push of 1559 N and pull of 1402 N at 0.5 MPa. 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.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X250N
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X250N replacement — usually within 7-8 hours.