The AirTAC Airtac SAUJ Adjustable-Stroke Cylinders SAUJ100X33-30 is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 33mm stroke, 1/2" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
The SAUJ100X33-30 is a double-acting, single-rod adjustable-stroke cylinder in AirTAC's extruded aluminium profile range - a body noticeably shorter than an ISO 15552 cylinder of the same 100 mm bore. Its 33 mm nominal stroke is the maximum: an external stop screw on the extend end lets you trim the working stroke by up to 30 mm on-site, giving a usable extend window of 3-33 mm without ordering a new cylinder. Force is the standard single-rod set: 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N at 0.9 MPa.
This bore carries a 25 mm piston rod, a 1/2 inch air port (PT thread) and an M20x1.5 rod-end thread, with 29 mm adjustable cushions at each end. Practical sizing: keep continuous working load near 2356 N (about 60% of the 0.5 MPa push figure), which suits vertical lifts of roughly 200 kg at a 2:1 margin. Note this SKU has no -S magnet, so it cannot accept CMSG/DMSG/EMSG switches, and like any plain cylinder it will not hold a load on air loss - the stop screw sets position only, so use an external rod lock or pilot-operated check valve where a load must be held.
| Model | Airtac SAUJ Adjustable-Stroke Cylinders SAUJ100X33-30 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 33 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×33 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
A 100 mm bore short-stroke press that must seat parts to a precise depth - the stop screw lets a line technician trim the 33 mm extend stroke by up to 30 mm when the fixture or part revision changes.
Packaging clamps that close on varying case heights: maintenance dials in the extend stop once per product changeover instead of swapping shims, spacers or whole cylinders.
Conveyor stopper gates where lift height must match different tote or pallet sizes - the 3-33 mm extend window is set on-site with the external screw, no disassembly needed.
Size the bore two ways. Neighbour check: an 80 mm bore gives 2513 N push at 0.5 MPa, so if your load sits under about 1500 N the SAUJ80 saves air; at 100 mm you get 3927 N push and 3681 N pull at 0.5 MPa, with headroom to 7068 N at 0.9 MPa. Pick SAUJ over a fixed SAU whenever the end position may need tuning after commissioning - the stop screw replaces shims, spacers or an external stop bracket. Choose the 30 mm window when the final stroke is not yet fixed; if the exact stroke is already known, a fixed SAU is the simpler buy. Mounting is Basic, FA flange or LB foot, and interfaces match the AirTAC SC series. This unit has no -S magnet and cannot take a switch; order an -S variant if you need CMSG/DMSG/EMSG sensing. At 33 mm stroke the side-load rule for strokes of 300 mm and above does not bite, but fit external guides the moment the specification moves toward longer strokes.
Quick checklist
At 0.5 MPa it pushes 3927 N and pulls 3681 N; at 0.7 MPa push is 5497 N, at 0.9 MPa push is 7068 N, and theoretical maximum is 801 kgf at 1.0 MPa. The 33 mm nominal stroke is the maximum: the external stop screw shortens the extend stroke by up to 30 mm on-site, so the usable extend window is 3-33 mm. The stop sets end position only - it is not a load lock, and the 29 mm air cushion merely decelerates the piston near stroke end.
This SKU has no -S magnet, so CMSG, DMSG or EMSG switches cannot be fitted - order an -S variant if position sensing is required. The adjustable stroke is mechanical: a stop screw on the extend end caps piston travel anywhere within the 30 mm window, so the exact end position is set with a wrench during commissioning, no new cylinder needed. Operating range is 0.15-1.0 MPa with 1.5 MPa proof pressure; the Viton H seal option raises the temperature limit from -20 to +70 C up to 0-150 C.
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