Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100
The AirTAC SAIJ100X900-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a substantial 7068N of push force at 0.9 MPa, making it well-suited for heavy-duty handling tasks. The integrated rear screw mechanism allows you to trim the effective travel down from the 900 mm nominal stroke, providing a usable adjustment window of 800 to 900 mm for precise end-position tuning during commissioning.
This model features a carbon steel piston rod with an M20x1.5 thread and a G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches if a magnet is specified later. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits the FB, CA, CB, and CR options found on standard variants. The rear stopper sets the travel end but does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 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 | 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.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SAIJ100X900-100 Is Used
Variable End-Stop Positioning
Ideal for heavy press operations where the exact bottom position must be dialed in across an 800 to 900 mm window to accommodate varying material thicknesses without re-engineering the fixture.
Machine Setup & Changeover
Speeds up product line changeovers by allowing operators to retract the end position by up to 100 mm via the rear screw, adapting the stroke to new package sizes on the fly.
Large-Format Product Handling
Provides the 7068N of thrust at 0.9 MPa needed to push heavy pallets or large assemblies through a 900 mm travel distance while allowing fine-tuning of the final destination.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-100 the Right Cylinder?
Select this 100 mm bore cylinder when an application requires high thrust (3927N push at 0.5 MPa) alongside the ability to fine-tune the retract distance by up to 100 mm without swapping out the physical cylinder or adding external mechanical stops. If your process requires less force, stepping down to an 80 mm bore yields 2513N at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136N. Choose this adjustable-stroke SAIJ variant over a fixed SAI model when you anticipate product changeovers or need to dial in the exact end-of-stroke position on the machine.
Because the 900 mm stroke is substantial, the M20x1.5 rod thread and 25 mm rod diameter will experience significant leverage under side loads; an external guide rail is strongly recommended to prevent rod bending. Ensure your setup uses a PT tapered port thread and matches the ISO 15552 mounting interface. Remember that the rear adjuster and the variable air cushions only decelerate the travel end; for true load-holding without live air, utilize an external pilot-operated check valve or select a SAIL or BSAI cylinder.
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 SAIJ100X900-100 FAQ
At 0.9 MPa, this 100 mm bore cylinder delivers 7068N of push force and 3681N of pull force. It operates at a speed range of 30-800 mm/s and features a 36 mm cushion length at both ends to absorb kinetic energy.
The rear adjusting screw acts as an external stopper that lets you shorten the effective stroke by up to 100 mm, providing a usable travel window of 800 to 900 mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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