This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X135, 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 SU63X135 is a double-acting profile-type standard cylinder with a Ø63mm bore and 135mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X135, which matches its bore, stroke, force and mounting.
The AirTAC SU63X135 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 135 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU63X135, a direct upgrade retaining the exact body dimensions, M16x1.5 rod thread, output force and SC-series mounting footprint.
Because this SKU lacks a magnet, it cannot accept position switches. If sensing is needed, the SAU63X135-S uses modern CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B reed switches. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve.
| Model | Airtac SU63-100 Standard Cylinder SU63X135 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X135 |
| Bore size | Ø63 mm |
| Stroke | 135 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 SAU63X135 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 SAU63X135 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. |
| ×135 | 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.
Actuates routing gates on 50-80 kg parcel lines, using the 1559 N push force to deflect cartons at speed without bouncing.
Deploys a physical stop block to halt incoming pallets on gravity conveyors, absorbing momentum via the 21 mm adjustable cushions.
Secures medium aluminum castings during CNC machining, cycling rapidly at 30-800 mm/s to maintain high throughput.
To replace the SU63X135, order the SAU63X135 with the same 3/8" port, M16x1.5 rod thread, and PT/G/NPT thread choice. Confirm your SC-series mounting brackets (LB, FA, FB, CA, CB, TC) transfer over directly. Since this non-magnetic SKU cannot hold a load without live air—its cushions only decelerate—add an external rod lock or pilot-operated check valve for vertical drop safety. If you need position sensing, step up to the SAU63X135-S and upgrade to CMSG/DMSG/EMSG switches. For higher force, the 80 mm bore yields 2513 N push at 0.5 MPa; for lighter loads, the 50 mm bore provides 982 N. The SAUF built-in-valve option is available if you want to eliminate external piping.
Replacement checklist
Yes, the SU63X135 is discontinued. The direct replacement is the AirTAC SAU63X135. It shares the identical 63 mm bore, 135 mm stroke, 3/8" port, force output, and SC-series mounting hardware, so it drops right into the same fixture.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. It pushes 2182 N at 0.7 MPa, 2805 N at 0.9 MPa, and reaches a theoretical max of 318 kgf at 1.0 MPa. This specific non-magnetic SKU cannot accept sensors; the SAU63X135-S replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X135 replacement — usually within 7-8 hours.