This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X370, 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 SU63X370 is a double-acting profile-type standard cylinder with a Ø63mm bore and 370mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X370, which matches its bore, stroke, force and mounting.
The AirTAC SU63X370 is a discontinued double-acting profile cylinder with a 63 mm bore and 370 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. The direct replacement is the SAU63X370, matching the bore, stroke, force, and SC-series mounting.
Buyers gain a compact extruded body shorter than same-bore ISO cylinders. The SAU upgrade uses CMSG/DMSG/EMSG sensors and adds a SAUF valve option. Note this non-magnet SKU cannot take a switch.
| Model | Airtac SU63-100 Standard Cylinder SU63X370 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X370 |
| Bore size | Ø63 mm |
| Stroke | 370 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 SAU63X370 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 SAU63X370 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. |
| ×370 | 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.
Pushes loaded pallets sideways at 90 degrees using a safe 935 N working load, with the 370 mm stroke clearing the conveyor frame.
Ejects machined metal parts from a fixture over 370 mm, relying on adjustable end cushions to decelerate the 20 mm rod before impact.
To replace the SU63X370, order the SAU63X370 and confirm the 3/8" port, M16x1.5 rod thread, and SC-series mounts (LB/FA/FB/CA/CB). This non-magnet SKU cannot accept a sensor; the SAU -S variant uses CMSG/DMSG/EMSG switches. If you need higher force, the 80 mm bore offers 2513 N push at 0.5 MPa; for less, the 50 mm bore gives 982 N. At 370 mm, prevent rod bending by using an external guide. The cushion only decelerates; use a rod lock or pilot check valve to hold loads. The SAUF variant integrates a 4M valve.
Replacement checklist
Yes, the SU63X370 is discontinued. The direct replacement is the SAU63X370. It matches the 63 mm bore, 370 mm stroke, 1559 N force, 3/8" port, and SC-series mounting accessories. The SAU body also offers a new SAUF built-in valve option.
It provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a 318 kgf maximum at 1.0 MPa. This specific SKU lacks a magnet and cannot take a sensor. If you order the SAU -S version, it uses current CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X370 replacement — usually within 7-8 hours.