This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X35-30, 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 SUJ40X35-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X35-30 is a double-acting profile-type standard cylinder with a Ø40mm bore and 35mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X35-30, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke35 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X35-30
- 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 SUJ40X35-30
The AirTAC SUJ40X35-30 is a discontinued double-acting double-rod profile cylinder with an adjustable stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 5-35mm extend window from the 35mm nominal maximum. The stop screw sets the end position but is not a load lock. The direct replacement is the SAUJ40X35-30.
The compact profile barrel is shorter than an ISO 15552 cylinder of the same bore. Because this SKU lacks a magnet (-S), it cannot take a magnetic switch. The SAUJ upgrade retains the bore, stroke, force, and SC-series FA/LB mounting, but switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B. A plain cylinder drifts on air loss; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X35-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X35-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X35-30 |
| Bore size | Ø40 mm |
| Stroke | 35 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 SAUJ40X35-30 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 SAUJ40X35-30 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 SUJ40X35-30
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 SUJ40X35-30 Is Used
Precision Pinch Rollers
Dial in the exact 5-35mm extend contact distance on-site to accommodate varying material thicknesses without re-mounting the cylinder.
Adjustable Forming Stops
Trim the extend stroke by up to 30mm to set precise metal forming depths directly at the fixture, avoiding the need for a fixed-stroke cylinder plus external stop.
Variable Pusher Pins
Tune the extend endpoint on the fly for sorting or rejecting parts of different heights on a conveyor line within a compact profile body.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X35-30 with the SAUJ40X35-30
To replace this discontinued SUJ40X35-30, order the direct replacement SAUJ40X35-30, which matches the 40mm bore, 35mm nominal stroke, 30mm adjust window, 1/4" port, and FA/LB mounting. Choose the 30mm adjust window when you need precise 5-35mm extend tuning on-site. Since this non-magnetic SKU cannot take a switch, the SAUJ upgrade requires current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Note that the external stop sets end position but is not a lock; for held loads, specify an external rod lock or pilot-operated check valve. For stroke lengths at or exceeding 300mm, carefully verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X35-30
- ✓ 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 SUJ40X35-30 FAQ
Yes, the SUJ40X35-30 is discontinued. The direct replacement is the SAUJ40X35-30, which matches the 40mm bore, 35mm stroke, 30mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The nominal 35mm extend stroke can be shortened by up to 30mm on-site, yielding a 5-35mm usable window. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X35-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X35-30 replacement — usually within 7-8 hours.