Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm 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
- Stroke55 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-30S
The AirTAC SAIJ100X55-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 25 to 55 mm. Delivering 3927 N of push force at 0.5 MPa, it handles substantial loads while allowing precise end-position tuning during commissioning without swapping out the physical cylinder. The extruded aluminum barrel features sensor grooves on both sides.
This variant includes a magnet for position sensing and uses a standard carbon steel rod. The rear screw acts purely as a travel stop for deceleration and end-position setting; it does not lock the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock or the related SAIL pneumatic lock cylinder.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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 SAIJ100X55-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 SAIJ100X55-30S Is Used
Precision End-Stop Tuning
Dial in the exact clamping position within the 25-55 mm window during machine commissioning without needing external stopper blocks.
Product Size Changeover
Quickly adjust the retract end-position on packaging lines when switching between different product dimensions.
Heavy-Duty Forming
Leverage the 3927 N push force at 0.5 MPa for pressing operations while fine-tuning the bottoming depth on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-30S the Right Cylinder?
Choose this 100 mm bore when a smaller 80 mm cylinder lacks thrust, as the 80 mm yields 2513 N at 0.5 MPa compared to the 3927 N provided here. The adjustable stroke is ideal for machine setups requiring variable end stops or frequent product-size changeovers, whereas a fixed-stroke SAI is better for static, repetitive operations. Because the nominal stroke is under 300 mm, side-load stress on the 25 mm rod is manageable, though external guides remain recommended for heavy lateral loads.
To match this ISO 15552 interchangeable cylinder, specify the 100 mm bore, 55 mm stroke, 30 mm adjustment range, PT tapered port threads, and the -S magnet option for CMSE reed or DMSE electronic sensors. Mounting choices are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
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 SAIJ100X55-30S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to trim the effective stroke back by up to 30 mm from the 55 mm nominal length, creating a usable travel window of 25 to 55 mm. The adjuster functions as a mechanical stop and does not hold the load without live air pressure.
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