This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X20-10S, 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 SUJ Adjustable Cylinder SUJ63X20-10S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ63X20-10S 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 SAUJ63X20-10S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ63X20-10S
- 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 SUJ Adjustable Cylinder SUJ63X20-10S
The AirTAC SUJ63X20-10S is a double-acting, double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 10-20 mm stroke from the 20 mm nominal maximum. The stop screw strictly sets the end position and is not a load lock; plain cylinders drift on air loss, so fit an external rod lock for held loads.
As the SUJ line is end-of-life, the direct replacement is the SAUJ63X20-10S, matching the 63 mm bore, 20 mm stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, replacing this model's legacy CS1-B/DS1-B switches.
Airtac SUJ Adjustable Cylinder SUJ63X20-10S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ63X20-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X20-10S |
| 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 SAUJ63X20-10S 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 SAUJ63X20-10S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ63X20-10S
| 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 SUJ Adjustable Cylinder SUJ63X20-10S Is Used
Short-Stroke Clamping
Adjusts the exact clamping contact point on the fly for varying part tolerances without repositioning the entire fixture.
Transfer Diverter Gates
Tunes the gate extend stop precisely to route different package sizes on a packaging line within the 10 mm trim window.
Compact Ejector Pins
Dials in the ejection distance for delicate parts from a press, ensuring components clear the mold safely without overtravel.
Replacing the Airtac SUJ Adjustable Cylinder SUJ63X20-10S with the SAUJ63X20-10S
To replace the discontinued SUJ63X20-10S, order the direct replacement SAUJ63X20-10S, which retains the 3/8" port, M16x1.5 rod thread, 21 mm cushions, and SC-series FA/LB mounting. If migrating, note the -S sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. Choose the 10 mm adjust window when you need precise field tuning of the extend endpoint. Because the nominal 20 mm stroke is under 300 mm, side-load moment concerns are minimal. The external stop sets end position but provides no braking; use a pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ63X20-10S
- ✓ 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 SUJ Adjustable Cylinder SUJ63X20-10S FAQ
Yes, the SUJ63X20-10S is discontinued. The direct replacement is the SAUJ63X20-10S, matching the 63 mm bore, 20 mm stroke, 3/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw offers a 10 mm adjust window, shortening the 20 mm nominal extend stroke down to 10 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ63X20-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ63X20-10S replacement — usually within 7-8 hours.