This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X40TC, 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 SU63X40TC is a double-acting profile-type standard cylinder with a Ø63mm bore and 40mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X40TC, which matches its bore, stroke, force and mounting.
The AirTAC SU63X40TC is a discontinued double-acting profile-type cylinder with a 63 mm bore, 40 mm stroke, and a TC mount interface. It delivers 1559 N of push force at 0.5 MPa, making it a robust choice for mid-range automation. AirTAC replaced this unit with the SAU63X40TC, a direct upgrade retaining the exact 3/8" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because this specific SKU lacks a magnet, it cannot accept a position sensor. The SAU upgrade also modernizes sensing to CMSG/DMSG/EMSG switches on magnetized variants and introduces the SAUF built-in 4M valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU63X40TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X40TC |
| Bore size | Ø63 mm |
| Stroke | 40 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 SAU63X40TC 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 SAU63X40TC 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. |
| ×40 | 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 securing heavy workpieces during machining, using the 1559 N push force to hold parts firmly against fixture stops.
Drives short-stroke routing gates on assembly lines, providing reliable 40 mm travel to redirect mid-weight goods.
To replace the discontinued SU63X40TC, order the SAU63X40TC and verify your 3/8" port, M16x1.5 rod thread, and TC mounting accessory. Since this SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B switches; if you require position feedback on the new SAU, specify the -S option and use current CMSG/DMSG/EMSG sensors. For loads needing 1559 N at 0.5 MPa, sizing down to a 50 mm bore yields 982 N, while sizing up to an 80 mm bore provides 2513 N. Remember that a standard cylinder drifts without live air; use an external rod lock or pilot-operated check valve for secure load holding. The 40 mm stroke is short, so rod-bending side loads are minimal, but always guide the load.
Replacement checklist
Yes, the AirTAC SU63X40TC is discontinued. The direct replacement is the SAU63X40TC. It shares the identical 63 mm bore, 40 mm stroke, 3/8" port, output force, and TC mounting interface, allowing a direct physical swap.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. Push force is 2182 N at 0.7 MPa, 2805 N at 0.9 MPa, with a theoretical max of 318 kgf at 1.0 MPa. This specific SKU has no magnet, so it cannot take sensors; magnetized SAU replacements use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X40TC replacement — usually within 7-8 hours.