Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-30
The AirTAC SAIJ100X275-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. It features a 25mm carbon steel rod and a G1/2 PT port. By turning the rear screw, you achieve a usable travel window of 245-275mm, trimming the nominal 275mm stroke by up to 30mm without adding external stops.
This adjustable stopper lets you fine-tune the retract end position during commissioning or product changeovers. The rear adjuster acts purely as a travel stop and works alongside variable air cushions at both ends, but it does not hold the load without live air. For position holding, consider the SAIL or BSAI series. Standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 275 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 SAIJ100X275-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SAIJ100X275-30 Is Used
Product Changeover
Dial in the exact 245-275mm end-stop during format size changes on a packaging line without swapping out the entire actuator.
Machine Setup
Fine-tune the retract position at commissioning to perfectly align heavy 100mm bore tooling without machining external spacers.
Variable End Stops
Adapt clamping pressure positions dynamically on the fly for parts requiring the high 5497N push force at 0.7 MPa.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-30 the Right Cylinder?
Select this 100mm bore when a 63mm cylinder (providing 2182N push at 0.7 MPa) lacks the power for your setup, but you want to avoid the bulk of a 125mm unit. The adjustable 245-275mm window is ideal for machines requiring precise end-position tuning during product size changeovers, offering more flexibility than a fixed-stroke SAI cylinder. To match this ISO 15552 interchangeable cylinder exactly, specify the 275mm stroke, 30mm adjustment, G1/2 PT port, and required mounting hardware.
Because the 275mm stroke is moderately long, ensure adequate external guiding to prevent excessive side-loading on the 25mm rod. Since no magnet is specified, this base configuration does not support CMSE or DMSE sensors for position detection.
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 SAIJ100X275-30 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. It can reach a maximum push force of 7068N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the nominal 275mm down to a minimum of 245mm. This creates a 245-275mm usable window, enabling precise end-position tuning at commissioning without replacing the cylinder.
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