Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-75
The AirTAC SAIJ100X300-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 225-300 mm usable travel window by allowing you to trim up to 75 mm from the 300 mm nominal stroke. Delivering 3927 N of push force at 0.5 MPa, it handles heavy positioning tasks with precision.
This model uses a carbon steel piston rod with an M20x1.5 thread, paired with PT G1/2 ports and 36 mm air cushions at both ends. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAIJ100X300-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SAIJ100X300-75 Is Used
Machine Changeover
Dial in the exact retract position within the 225-300 mm window when switching production lines to different product sizes.
Commissioning Tuning
Fine-tune the end stop during initial setup to absorb mechanical tolerances without physically machining mounting plates.
Heavy Material Handling
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or fixtures while adjusting the travel distance on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X300-75 the Right Cylinder?
Choose this 100 mm bore when 80 mm provides insufficient thrust (2513 N at 0.5 MPa) or 125 mm is excessive (6136 N). The adjustable stroke is ideal for machine setup and product changeover, letting you fine-tune the retract end position without swapping cylinders or adding external stops. Since the rear screw is a travel stop and not a lock, use SAIL or BSAI cylinders if you need to hold loads without live air.
For ISO 15552 replacement, match the 100 mm bore, 300 mm stroke, 75 mm adjustment, G1/2 port, and mounting style. Because the stroke is 300 mm, ensure external guides support the load to prevent excessive side loading on the rod.
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 SAIJ100X300-75 FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 300 mm nominal stroke by up to 75 mm. This creates a usable travel window of 225-300 mm. The adjuster only sets the end position; it does not lock the load without live air pressure.
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