This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X125H, 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 SU80X125H
The AirTAC SU63-100 Standard Cylinder SU80X125H is a double-acting profile-type standard cylinder with a Ø80mm bore and 125mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X125H, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X125H
- 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 SU80X125H
The AirTAC SU80X125H is a discontinued double-acting profile-type cylinder with an 80mm bore, 125mm stroke, and Viton H high-temperature seals rated for 0 to 150 C. It delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa, utilizing a 25mm piston rod and a 3/8" port. AirTAC replaced this end-of-life unit with the SAU80X125H, a direct alternative retaining the exact bore, stroke, force, port size, and SC-series mounting footprint.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors, whereas this legacy SU series relied on older CS1-B/DS1-B switches; additionally, the SAU line offers a SAUF variant with a built-in 4M solenoid valve that the SU never featured. This SKU lacks a magnet and cannot support sensing, while the standard air cushions only decelerate the piston near stroke end without holding the load.
Airtac SU63-100 Standard Cylinder SU80X125H Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X125H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X125H |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAU80X125H 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 SAU80X125H 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 SU80X125H
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SU80X125H Is Used
High-Temperature Ejection
Ideal for plastic injection molding ejectors where ambient heat requires Viton H seals up to 150 C, using the 2513 N push force to reliably strip parts.
Hot Stamping Press Feed
Drives short-stroke material indexing in warm metal forming environments, leveraging the compact profile body and 125mm stroke for tight machine cells.
Replacing the Airtac SU63-100 Standard Cylinder SU80X125H with the SAU80X125H
To replace this discontinued SU80X125H, order the SAU80X125H direct equivalent, verifying your 80mm bore, 125mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB). Because this high-temp Viton H cylinder operates up to 150 C, ensure the replacement maintains the same seal specification. If you need position sensing, note this specific SKU has no magnet and cannot accept a switch; the SAU family uses modern CMSG/DMSG/EMSG sensors. For sizing alternatives, dropping to a 63mm bore yields 1559 N push at 0.5 MPa, while stepping up to 100mm provides 3927 N. Remember that a standard cylinder does not hold load without live air—the cushions only decelerate—so install an external rod lock or pilot-operated check valve for vertical load security.
Replacement checklist
- ✓ Same bore / stroke → SAU80X125H
- ✓ 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 SU80X125H FAQ
Yes, the SU80X125H is discontinued. The direct replacement is the AirTAC SAU80X125H, which matches the 80mm bore, 125mm stroke, 2513 N force, 3/8" port, and SC-series mounting. The SAU body also retains the high-temp Viton H seal option.
At 0.5 MPa it pushes 2513 N and pulls 2268 N; at 0.7 MPa it pushes 3518 N, with a theoretical max of 513 kgf at 1.0 MPa. This specific SKU has no magnet, so it cannot take sensors; the SAU replacement uses CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X125H
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X125H replacement — usually within 7-8 hours.