Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-30 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 SAIJ100BX900-30
The AirTAC SAIJ100X900-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 900 mm nominal stroke that can be fine-tuned down by up to 30 mm, providing an exact 870-900 mm usable travel window. In the 100 mm bore class, it delivers a robust 5497 N push force at 0.7 MPa, utilizing a G1/2 port and variable air cushions at both ends to manage heavy kinetic energy.
This unit is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and ships with PT tapered port threads. Because it lacks the -S magnet option, it operates without position sensing. The rear adjuster functions strictly as a mechanical stop to dial in the retract end position during commissioning; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-30 |
|---|---|
| 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 SAIJ100BX900-30
| 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 SAIJ100BX900-30 Is Used
Product Changeover
Dial in the 870-900 mm travel window during format size changes on a packaging line without physically replacing the actuator.
Heavy Material Handling
Leverage the 5497 N push force at 0.7 MPa to shift heavy workpieces, using the rear stop to fine-tune the resting position.
Commissioning Calibration
Trim the retract stroke by up to 30 mm during machine setup to perfectly align tooling without adding external mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-30 the Right Cylinder?
Choose this 100 mm bore when the 80 mm class (delivering 3518 N push at 0.7 MPa) is insufficient for moving your payload, but you want to avoid the larger fluid demands of a 125 mm cylinder. The adjustable 870-900 mm window is ideal for applications requiring precise end-position tuning during product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder or bolt on external stops. To match this ISO 15552 footprint for a direct replacement, verify the 900 mm stroke, 30 mm adjustment range, PT port, and mounting style.
With a 900 mm stroke, the 25 mm diameter rod and M20x1.5 thread provide substantial rigidity, but an external guide is highly recommended to prevent excessive side-loading on the unsupported piston. Remember that the rear adjuster only sets the travel end and relies on the air cushion for deceleration; for true load-holding without live air, select a SAIL pneumatic lock or BSAI clamp-lock cylinder instead. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX900-30 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 5145 N of pull force. It can achieve a maximum push force of 7068 N at 0.9 MPa.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 900 mm nominal stroke by up to 30 mm. This creates an 870-900 mm adjustable travel window for fine-tuning the end position at commissioning, though it does not lock the load without live air.
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