This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X35, 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 SU80X35 is a double-acting profile-type standard cylinder with a Ø80mm bore and 35mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X35, which matches its bore, stroke, force and mounting.
The AirTAC SU80X35 is a discontinued double-acting profile-type cylinder with an 80 mm bore and 35 mm stroke. Delivering 2513 N of push force at 0.5 MPa, its direct successor is the SAU80X35, which preserves the original 3/8" port, M20x1.5 rod thread, and SC-series mounting compatibility.
This extruded aluminium body is more compact than an ISO 15552 equivalent of the same bore. Note that this non-magnetic SKU cannot accept a sensor, and the SAU upgrade uses modern CMSG/DMSG/EMSG switches for its -S variants while adding a SAUF built-in-valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU80X35 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X35 |
| Bore size | Ø80 mm |
| Stroke | 35 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 SAU80X35 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 SAU80X35 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. |
| ×35 | 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.
Ideal for high-force 2513 N clamping of heavy castings in machining fixtures where a compact 35 mm stroke is required.
Provides robust actuation for heavy-duty conveyor routing arms, using the 80 mm bore to overcome package inertia.
Deploys a solid 128 kg vertical lift capacity to halt loaded pallets securely on low-profile roller conveyors.
To replace the discontinued SU80X35, order the SAU80X35 direct equivalent, verifying your 80 mm bore, 35 mm stroke, 3/8" port, and PT/G/NPT thread choice. Because this SKU lacks a magnet, it cannot support position sensing; if you need detection, the SAU family requires CMSG/DMSG/EMSG switches on its -S variant. For load sizing, neighbouring bores (63 mm or 100 mm) offer 1559 N or 3927 N at 0.5 MPa respectively. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for held loads. The SAUF variant integrates a 4M valve if self-switching is desired.
Replacement checklist
Yes, the SU80X35 is discontinued. The direct replacement is the AirTAC SAU80X35, which maintains the identical 80 mm bore, 35 mm stroke, output force, 3/8" port, and SC-series mounting accessories.
The 80 mm bore features a 3/8" air port and M20x1.5 rod thread. It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X35 replacement — usually within 7-8 hours.