This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X70TC, 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 SU63-100 Standard Cylinder SU63X70TC is a double-acting profile-type standard cylinder with a Ø63mm bore and 70mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X70TC, which matches its bore, stroke, force and mounting.
The AirTAC SU63X70TC is a discontinued double-acting profile-type cylinder with a 63 mm bore and 70 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, utilizing a 3/8 inch port and an M16x1.5 rod thread. AirTAC replaced this legacy unit with the SAU63X70TC, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series TC mounting interface.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also introduces the SAUF variant with a built-in 4M solenoid valve, which the SU line never offered. Remember that the adjustable air cushions only decelerate the piston near stroke end; they do not hold the load if air pressure drops.
| Model | Airtac SU63-100 Standard Cylinder SU63X70TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X70TC |
| Bore size | Ø63 mm |
| Stroke | 70 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 SAU63X70TC 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 SAU63X70TC 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. |
| ×70 | 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.
Drives a TC-mounted diverter arm on a packaging line, using the 1559 N push force at 0.5 MPa to redirect heavy cartons reliably.
Acts as a robust end-stop for accumulated pallets on a roller conveyor, absorbing kinetic energy via its adjustable 21 mm air cushions.
To replace the discontinued SU63X70TC, order the SAU63X70TC, matching the 63 mm bore, 70 mm stroke, 3/8 inch port, and TC mounting. If you need position sensing, note this no-magnet SKU cannot accept a switch, and the SAU family uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. If your application needs integrated flow control, consider the SAUF valve-integrated variant. For loads requiring holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. When sizing both ways, a 50 mm bore gives 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N.
Replacement checklist
Yes, the SU63X70TC is discontinued. The direct replacement is the AirTAC SAU63X70TC. It shares the exact same 63 mm bore, 70 mm stroke, 3/8 inch port, output force, and TC mounting, so it fits the same application directly.
At 0.5 MPa it provides 1559 N push and 1402 N pull; at 0.7 MPa it pushes 2182 N, and the theoretical max is 318 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; if you need sensing on the SAU replacement, use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X70TC replacement — usually within 7-8 hours.