Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX850-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 850mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- 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 SAIJ100 Adjustable Cylinder SAIJ100AX850-40
The AirTAC SAIJ100X850-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 850 mm travel by up to 40 mm for a precise 810-850 mm usable window. It delivers substantial thrust, pushing 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This variant features an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses a G1/2 port and M20x1.5 rod thread, while the integrated variable air cushions at both ends absorb kinetic energy. The rear stopper screw acts purely as a travel end-position stop for commissioning fine-tuning, not as a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×850 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40 Is Used
Product Changeover
Quickly reconfigure the 810-850 mm travel endpoint on packaging lines when switching to different pallet or container sizes without changing the cylinder.
Long-Stroke Material Handling
Deploy the 850 mm travel for transferring heavy workloads between stations, relying on the adjustable end-stop to dial in the exact transfer distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers without swapping hardware. Because the nominal stroke is 850 mm, the M20x1.5 rod is highly susceptible to side-loading; an external guide rail must be used to prevent binding and premature seal wear.
For a direct ISO 15552 replacement match, ensure the 100 mm bore, 850 mm stroke, 40 mm adjustment, PT tapered port threads, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) are specified. Note that SAIJ omits FB, CA, CB, and CR mounts. If your process requires holding the load statically without live air pressure, this cylinder cannot perform that function; you must specify an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-40 FAQ
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw lets you shorten the 850 mm nominal stroke by up to 40 mm, creating an effective 810-850 mm travel window. It acts as a mechanical stop for end-position tuning and does not lock the load.
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