This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X840S, 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.
Airtac SU63-100 Standard Cylinder SU63X840S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X840S is a double-acting profile-type standard cylinder with a Ø63mm bore and 840mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X840S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke840 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X840S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU63-100 Standard Cylinder SU63X840S
The AirTAC SU63X840S is a discontinued double-acting profile-type cylinder with an 840 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 63 mm bore and 3/8" port. AirTAC replaced this unit with the SAU63X840S, a direct upgrade retaining the exact body dimensions, stroke, output force, and SC-series mounting accessories.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches, whereas the SAU replacement utilizes the current CMSG/DMSG/EMSG sensor family. The new SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series lacked.
Airtac SU63-100 Standard Cylinder SU63X840S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X840S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X840S |
| Bore size | Ø63 mm |
| Stroke | 840 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 SAU63X840S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X840S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU63-100 Standard Cylinder SU63X840S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×840 | 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.
Where the Airtac SU63-100 Standard Cylinder SU63X840S Is Used
Long-Stroke Diversion
Pushes heavy pallets sideways across a 840 mm conveyor lane using the 1559 N push force at 0.5 MPa.
Large Door Actuation
Opens heavy machine safety doors over an 840 mm span, relying on adjustable end cushions to decelerate.
Replacing the Airtac SU63-100 Standard Cylinder SU63X840S with the SAU63X840S
To replace this SU63X840S, order the SAU63X840S, confirming the 63 mm bore, 840 mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). If relying on the -S magnet for positioning, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For loads needing 2805 N at 0.9 MPa, step up to an 80 mm bore; if 982 N at 0.5 MPa suffices, step down to a 50 mm bore. Remember that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for load holding. Finally, at 840 mm, prevent rod bending by guiding the load externally to avoid side-load stress.
Replacement checklist
- ✓ Same bore / stroke → SAU63X840S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU63-100 Standard Cylinder SU63X840S FAQ
Yes, the AirTAC SU63X840S is discontinued. The direct replacement is the SAU63X840S. It matches the 63 mm bore, 840 mm stroke, 3/8" port, force, and SC-series mounting, but requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
This 63 mm bore cylinder has a 3/8" port. It provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X840S
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