Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-100 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 SAIJ100X275-100
The AirTAC SAIJ100X275-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. Its defining feature is a 100mm adjustment range that creates a 175-275mm usable travel window. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops.
Built with a 25mm carbon steel rod and an M20x1.5 thread, it handles substantial side loads, though long unsupported strokes still need an external guide. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches if a magnet is added later. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-100 |
|---|---|
| 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 SAIJ100X275-100
| 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 SAIJ100X275-100 Is Used
Product Changeover
Dial in the exact end-stop for varying product sizes on a packaging line, utilizing the 175-275mm travel window to switch formats rapidly without mechanical rebuilds.
Machine Setup
Fine-tune the retract position during commissioning to achieve perfect alignment, using the rear screw to absorb mechanical tolerances rather than remachining mounting plates.
Heavy Material Handling
Push heavy loads with 3927N of force at 0.5 MPa, relying on the 25mm carbon steel rod to withstand demanding industrial conveying and lifting tasks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X275-100 the Right Cylinder?
Choose this 100mm bore when you need heavy thrust beyond the 2513N push force of an 80mm cylinder, or drop down if lower force is acceptable. The 100mm adjuster is selected when a machine requires significant product-size changeover, letting you dial back the stroke from 275mm to 175mm on the fly. This is far more efficient than machining custom spacers for a fixed SAI cylinder.
Remember that the rear adjuster acts as a travel stop, not a lock; it cannot hold a load without live air. For load-holding without pneumatic pressure, consider an external rod lock or the AirTAC SAIL and BSAI series. This SKU uses PT tapered ports and operates at 30-800 mm/s. Since the stroke is 275mm, ensure an external guide supports the rod to prevent excessive wear.
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 SAIJ100X275-100 FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster acts as a mechanical stop that shortens the effective stroke. For this 275mm nominal stroke cylinder, you can trim the travel back by up to 100mm, creating a usable window of 175-275mm to fine-tune the end position without external stops.
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