This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X425, 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 SU80X425
The AirTAC Airtac SU63-100 Standard Cylinder SU80X425 is a double-acting profile-type standard cylinder with a Ø80mm bore and 425mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X425, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke425 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X425
- 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 SU80X425
The AirTAC SU80X425 is a discontinued double-acting profile-type cylinder with an 80 mm bore and 425 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. The direct replacement is the SAU80X425, matching the bore, stroke, output force, port size, and SC-series mounting.
When upgrading to the SAU80X425, the extruded aluminum body remains more compact than an ISO 15552 equivalent. Note this non-magnet SKU cannot accept a sensor; if sensing is needed, the SAU uses modern CMSG/DMSG/EMSG switches instead of legacy CS1-B/DS1-B, and the SAUF variant adds a built-in valve.
Airtac SU63-100 Standard Cylinder SU80X425 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X425 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X425 |
| Bore size | Ø80 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X425 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X425 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 SU80X425
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×425 | 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 SU80X425 Is Used
Pallet Diversion
Pushes heavy pallets off a main conveyor line using 2513 N of thrust at 0.5 MPa, relying on the 425 mm stroke to clear the lane completely.
Press Ejection
Ejects dense metal stampings from a press bed, utilizing the 28 mm adjustable air cushions to decelerate the 25 mm rod smoothly at stroke end.
Replacing the Airtac SU63-100 Standard Cylinder SU80X425 with the SAU80X425
To replace this SU80X425, order the SAU80X425 direct equivalent, verifying the 80 mm bore, 425 mm stroke, M20x1.5 rod thread, 3/8" port (PT/G/NPT), and SC-series mounting. Sizing both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. Because this 425 mm stroke exceeds 300 mm, use an external guide to prevent rod bending and side-load damage. The air cushion only decelerates the load; for holding a load without live air, install an external rod lock or pilot-operated check valve. This non-magnet SKU cannot take a sensor, but the SAU family supports CMSG/DMSG/EMSG switches and the SAUF built-in 4M valve option.
Replacement checklist
- ✓ Same bore / stroke → SAU80X425
- ✓ 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 SU80X425 FAQ
Yes, the AirTAC SU80X425 is discontinued and end-of-life. The direct replacement is the SAU80X425. It provides identical 80 mm bore, 425 mm stroke, 513 kgf max force, 3/8" port, and SC-series mounting compatibility for a seamless physical swap.
The 80 mm bore generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N at 0.9 MPa, with a 513 kgf max at 1.0 MPa. This specific SKU lacks a magnet and cannot accept a sensor. If sensing is required, the SAU replacement supports CMSG/DMSG/EMSG switches.
Request a Quote for the SAU80X425
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X425 replacement — usually within 7-8 hours.