This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X665S, 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 SU80X665S
The AirTAC Airtac SU63-100 Standard Cylinder SU80X665S is a double-acting profile-type standard cylinder with a Ø80mm bore and 665mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X665S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke665 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X665S
- 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 SU80X665S
The AirTAC SU80X665S is a discontinued double-acting profile cylinder with an 80mm bore and 665mm stroke. Delivering 2513 N push force at 0.5 MPa, its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. AirTAC replaced this EOL unit with the SAU80X665S, a direct sharing the exact 3/8" port, M20x1.5 rod thread, output force and SC-series mounting.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF built-in 4M valve option the SU lacked. Note that air cushions only decelerate; use an external rod lock for load holding.
Airtac SU63-100 Standard Cylinder SU80X665S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X665S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X665S |
| Bore size | Ø80 mm |
| Stroke | 665 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 SAU80X665S 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 SAU80X665S 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 SU80X665S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×665 | 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 SU80X665S Is Used
Pallet Diversion
Pushes heavy pallets sideways on a packaging line using the 2513 N thrust at 0.5 MPa, with the 665mm stroke clearing wide conveyors.
Vertical Lift Gate
Raises a 128 kg mezzanine safety gate, matching the computed vertical lift capacity while benefiting from the compact 80mm profile body.
Material Ejection
Ejects molded parts from a press using the full 665mm travel, relying on adjustable 28mm cushions to decelerate the 25mm rod smoothly.
Replacing the Airtac SU63-100 Standard Cylinder SU80X665S with the SAU80X665S
To replace this discontinued SU80X665S, order the SAU80X665S direct equivalent, verifying your 3/8" port, M20x1.5 thread, and SC-series mounting hardware. If your machine relied on the -S magnet, you must upgrade from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. For loads needing mid-stroke holding, a plain cylinder drifts without air, so add a pilot-operated check valve or rod lock. With a 665mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. If downsizing, a 63mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100mm bore gives 3927 N. Consider the SAUF variant if you want a built-in valve.
Replacement checklist
- ✓ Same bore / stroke → SAU80X665S
- ✓ 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 SU80X665S FAQ
Yes, the SU80X665S is end-of-life. The direct replacement is the SAU80X665S. It shares the identical 80mm bore, 665mm stroke, 3/8" port, output force and SC-series mounting, so it drops right into the same application.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors instead.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X665S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X665S replacement — usually within 7-8 hours.