This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X420, 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 SU63X420
The AirTAC SU63-100 Standard Cylinder SU63X420 is a double-acting profile-type standard cylinder with a Ø63mm bore and 420mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X420, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke420 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X420
- 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 SU63X420
The AirTAC SU63X420 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 420 mm stroke. It delivers 1559 N push at 0.5 MPa, utilizing an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same size. AirTAC replaced this unit with the SAU63X420, a direct replacement retaining the exact 3/8" port, M16x1.5 rod thread, and SC-series mounting.
The SAU upgrade switches to CMSG/DMSG/EMSG sensors and adds a SAUF built-in-valve option. Note this non-magnet SKU cannot take a switch, and the 420 mm stroke requires external guides to prevent rod bending.
Airtac SU63-100 Standard Cylinder SU63X420 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X420 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X420 |
| Bore size | Ø63 mm |
| Stroke | 420 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 SAU63X420 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 SAU63X420 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 SU63X420
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×420 | 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 SU63X420 Is Used
Pallet Diversion
Routes heavy pallets on a packaging line using the 1559 N push force at 0.5 MPa, while the 420 mm stroke clears the adjacent lane.
Component Ejection
Pushes molded parts out of a press area, using adjustable end cushions to decelerate the load before impact.
Replacing the Airtac SU63-100 Standard Cylinder SU63X420 with the SAU63X420
To replace the SU63X420, order the SAU63X420 direct equivalent, confirming the 3/8" port, PT thread, and SC-series mounting hardware are retained. If downsizing, a 50 mm bore yields 982 N push at 0.5 MPa; if upsizing, an 80 mm bore provides 2513 N. Because the 420 mm stroke invites side-load and rod-bending risks, implement external linear guides. A plain cylinder drifts on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for load holding. This non-magnet version cannot accept a sensor; if sensing is needed, specify an SAU -S model and use CMSG/DMSG/EMSG switches. For self-switching needs, explore the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU63X420
- ✓ 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 SU63X420 FAQ
Yes, the SU63X420 is discontinued. The direct replacement is the AirTAC SAU63X420. It matches the 63 mm bore, 420 mm stroke, 318 kgf max force, 3/8" port, and SC-series mounting accessories perfectly.
It pushes 1559 N and pulls 1402 N at 0.5 MPa, pushes 2182 N at 0.7 MPa, and reaches a 318 kgf max at 1.0 MPa. This non-magnet SKU cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is required.
Request a Quote for the SAU63X420
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X420 replacement — usually within 7-8 hours.