This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X20, 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 SU63X20
The AirTAC Airtac SU63-100 Standard Cylinder SU63X20 is a double-acting profile-type standard cylinder with a Ø63mm bore and 20mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X20, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X20
- 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 SU63X20
The AirTAC SU63X20 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 20 mm stroke. It delivers a 1559 N push force at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAU63X20, a direct replacement retaining the exact 3/8" port, M16x1.5 rod thread, output force, and SC-series mounting footprint.
Because this is a non-magnetic SKU, it cannot accept a sensor. If you need position detection, the SAU upgrade requires CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B.
Airtac SU63-100 Standard Cylinder SU63X20 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X20 |
| Bore size | Ø63 mm |
| Stroke | 20 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 SAU63X20 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 SAU63X20 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 SU63X20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×20 | 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 SU63X20 Is Used
Short-Stroke Clamping
Ideal for holding heavy metal castings during machining, utilizing the 1559 N push force within a tight 20 mm stroke.
Package Diverting
Provides robust actuation for routing heavy pallets on a line, where the compact profile saves valuable floor space.
Pallet Stopping
Acts as a high-force end-stop for inbound 63 mm bore logistics conveyors, safely halting pallets without external shock absorbers.
Replacing the Airtac SU63-100 Standard Cylinder SU63X20 with the SAU63X20
To replace this SU63X20, order the SAU63X20, confirming the 20 mm stroke, 3/8" port, and PT thread. This non-magnetic version cannot take a switch; adding a magnet to the SAU moves you to the CMSG/DMSG/EMSG sensor family. If you need a built-in valve, the SAUF variant offers a 4M solenoid the SU lacked. For loads needing 2805 N at 0.9 MPa, step up to an 80 mm bore; for lighter 982 N loads, drop to a 50 mm bore. Note that air cushions only decelerate; use an external rod lock or pilot-operated check valve to hold a load securely.
Replacement checklist
- ✓ Same bore / stroke → SAU63X20
- ✓ 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 SU63X20 FAQ
Yes, the SU63X20 is discontinued. The direct replacement is the AirTAC SAU63X20. It shares the same 63 mm bore, 20 mm stroke, 3/8" port, and SC-series mounting, so it fits your existing application directly.
It delivers 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; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is added.
Request a Quote for the SAU63X20
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X20 replacement — usually within 7-8 hours.