Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-40S 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 SAIJ100X900-40S
The AirTAC SAIJ100X900-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers robust thrust, pushing 7068 N at 0.9 MPa, making it suitable for heavy-duty positioning. The integrated -S magnet enables position sensing with AirTAC CMSE reed and DMSE electronic switches.
This model features a 900 mm nominal stroke that can be fine-tuned down by up to 40 mm via the external stopper, creating an 860-900 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides, and the standard carbon steel rod features an M20x1.5 thread for durable load coupling.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-40S |
|---|---|
| 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 SAIJ100X900-40S
| 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 SAIJ100X900-40S Is Used
Machine Changeover
Dial in the 860-900 mm travel window during product size transitions to set new end positions rapidly without adding external mechanical stops.
Heavy Press Positioning
Leverage the 7068 N push force at 0.9 MPa to move heavy fixtures, using the rear screw to precisely tune the final approach distance.
Assembly Line Indexing
Use the dual sensor grooves with CMSE or DMSE switches to confirm mid-stroke positions on long 900 mm transfers before the adjuster halts travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-40S the Right Cylinder?
Choose this 100 mm bore when you need higher force than a neighbouring 80 mm cylinder (which provides 4523 N push at 0.9 MPa), but want to avoid the larger footprint of a 125 mm unit. The adjustable stroke is ideal for fine-tuning end positions during machine commissioning or product changeovers without swapping the entire cylinder. To replace an ISO 15552 cylinder, match the 100 mm bore, 900 mm stroke, 40 mm adjustment, PT port threads, and -S magnet.
Because the stroke is 900 mm, the M20x1.5 rod and standard carbon steel shaft require external guidance to prevent excessive side-loading and binding. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for positive load-holding without pressure, consider an AirTAC 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 SAIJ100X900-40S FAQ
The rear stopper screw allows you to shorten the effective travel by up to 40 mm. This creates an adjustable 860-900 mm window, letting you fine-tune the retracted end position at commissioning without changing the cylinder.
At 0.9 MPa operating pressure, the push force is 7068 N and the pull force is 3681 N. At 0.5 MPa, the push force is 3927 N.
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