This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X405, 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.

The AirTAC Airtac SU63-100 Standard Cylinder SU80X405 is a double-acting profile-type standard cylinder with a Ø80mm bore and 405mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X405, which matches its bore, stroke, force and mounting.
The AirTAC SU80X405 is a discontinued double-acting profile cylinder. It delivers 2513 N push force at 0.5 MPa through an 80 mm bore and 405 mm stroke. The direct replacement is the SAU80X405, matching the 3/8" port, M20x1.5 rod thread, output force, and SC-series mounting.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches, and introduces the SAUF built-in-valve variant the SU lacked. This compact extruded-aluminum body is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X405 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X405 |
| Bore size | Ø80 mm |
| Stroke | 405 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 SAU80X405 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X405 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×405 | 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.
Handles heavy pallets on a packaging line, using the 2513 N push force to divert loads at high speed onto secondary tracks.
Ejects dense formed parts from a hydraulic press, relying on adjustable 28 mm cushions to decelerate the rod at stroke end.
To replace this SU80X405, order the SAU80X405. Confirm the 80 mm bore, 405 mm stroke, 3/8" port, and PT/G/NPT thread choice. Because this SKU lacks a magnet, it cannot accept a sensor; if sensing is needed, specify an SAU -S model and use CMSG/DMSG/EMSG switches. A plain cylinder drifts on air loss—the 28 mm cushions only decelerate, so add an external rod lock for held loads. With a 405 mm stroke, prevent rod bending by using an external guide to absorb side loads. If downsizing, a 63 mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100 mm bore yields 3927 N. The SAUF variant offers a built-in 4M valve.
Replacement checklist
Yes, the SU80X405 is discontinued. The direct replacement is the SAU80X405. It shares the same 80 mm bore, 405 mm stroke, 3/8" port, force, and SC-series mounting accessories. You simply order the SAU80X405.
At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa push is 3518 N, and the theoretical max is 513 kgf at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor. If you need position sensing, order the SAU80X405S and use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X405 replacement — usually within 7-8 hours.