This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X35, 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 SU63X35 is a double-acting profile-type standard cylinder with a Ø63mm bore and 35mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X35, which matches its bore, stroke, force and mounting.
The AirTAC SU63X35 is a discontinued double-acting profile-type cylinder featuring a 63mm bore and 35mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, making way for the direct replacement: the SAU63X35. This upgrade retains the identical extruded aluminium body, 3/8" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, which the SU line never offered. Note that a standard cylinder drifts without live air; use an external rod lock for held loads.
| Model | Airtac SU63-100 Standard Cylinder SU63X35 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X35 |
| Bore size | Ø63 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X35 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X35 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). |
|---|---|
| 63 | 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.
Provides 1559N of clamping force at 0.5MPa for securing heavy workpieces during machining operations.
Uses the short 35mm stroke to push cartons off a main conveyor belt into secondary packaging lanes.
Acts as a robust stop gate for inbound pallets, absorbing kinetic energy with its adjustable end cushions.
To replace the discontinued SU63X35, order the SAU63X35, verifying the 3/8" port, M16x1.5 rod thread, and PT/G/NPT thread choice. Since this is a non-magnet SKU, it cannot accept position switches; if sensing is needed, specify an SAU63X35S and migrate to the current CMSG/DMSG/EMSG sensors, as the legacy CS1-B/DS1-B switches are obsolete. Sizing both ways: a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore provides 2513N. The 35mm stroke is well under the 1500mm standard maximum, so rod-bending is negligible. For load holding on air loss, add a pilot-operated check valve, as the adjustable cushions only decelerate near stroke end.
Replacement checklist
Yes, the SU63X35 is discontinued. The direct replacement is the AirTAC SAU63X35, which matches the 63mm bore, 35mm stroke, 1559N output force, 3/8" port, and SC-series mounting accessories.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N at 0.9MPa, and a 318kgf maximum at 1.0MPa. This specific SKU has no magnet and cannot take sensors; the magnetic SAU version uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X35 replacement — usually within 7-8 hours.