This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X100-20, 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 SUJ40X100-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X100-20 is a double-acting profile-type standard cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X100-20, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X100-20
- 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 SUJ40X100-20
The AirTAC SUJ40X100-20 is a double-acting, double-rod profile cylinder with a 40mm bore and 100mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 80-100mm stroke. The extruded aluminum profile barrel is more compact than an ISO 15552 unit of the same bore. This SKU has no magnet and cannot accept a sensor switch.
This SUJ model is discontinued and the direct replacement is the SAUJ40X100-20, which preserves the 1/4" port, M12x1.25 rod thread, and 21mm cushions. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X100-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X100-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X100-20 |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X100-20 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X100-20 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 SUJ40X100-20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SUJ40X100-20 Is Used
Variable Pitch Indexing
Dialing the extend stop down by 20mm on-site lets a packaging line alter part pitch without swapping cylinders.
Adjustable Diverter Gate
Trimming the extend stroke tunes the gate opening width precisely to guide different carton sizes on the fly.
Variable Depth Pusher
Shortening the extend stroke by up to 20mm accommodates varying box depths at a packing station without retooling.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X100-20 with the SAUJ40X100-20
To replace the discontinued SUJ40X100-20, order the SAUJ40X100-20 for an direct match retaining the 40mm bore, 100mm stroke, 1/4" port, and FA/LB mounting. Choose the 20mm adjust window if you need field-tuning of the extend stroke from 80 to 100mm. Because this SKU lacks a magnet, it cannot take a switch; the SAUJ upgrade supports CMSG/DMSG/EMSG sensors. For strokes of 300mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X100-20
- ✓ 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 SUJ40X100-20 FAQ
Yes, the SUJ40X100-20 is discontinued. The direct replacement is the SAUJ40X100-20, which matches the 40mm bore, 100mm stroke, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a 20mm adjust window, allowing the extend stroke to be trimmed from the 100mm maximum down to 80mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X100-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X100-20 replacement — usually within 7-8 hours.