Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 280mm 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
- Stroke280 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30S
The AirTAC SAIJ100X280-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 280 mm nominal stroke that can be fine-tuned down by up to 30 mm, providing a usable travel window of 250-280 mm. This built-in adjustability allows operators to dial in exact end positions during commissioning or product changeovers without swapping out the entire actuator. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for use with AirTAC CMSE reed and DMSE electronic solid-state switches.
In the 100 mm bore class, this cylinder delivers substantial thrust, generating 3927 N of push force and 3681 N of pull force at 0.5 MPa. It uses a G1/2 port and a 25 mm carbon steel rod with an M20x1.5 thread. The rear adjusting screw acts purely as a mechanical stop to set the retract position; it does not lock or hold the load without continuous air pressure. For applications requiring true load-holding, consider the SAIL or BSAI series instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 280 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 SAIJ100X280-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×280 | 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 SAIJ100X280-30S Is Used
Product Size Changeovers
Quickly reconfigure the 250-280 mm retract distance on packaging lines when switching between different carton or pallet sizes without changing hardware.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial commissioning to achieve precise mechanical alignment, absorbing minor tolerances in the machine frame.
High-Force Positioning
Leverage the 3927 N push force at 0.5 MPa to move and position heavy fixtures or workpieces while retaining the flexibility to trim the stroke by up to 30 mm.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X280-30S the Right Cylinder?
Choose this 100 mm bore actuator when your application requires high force (3927 N push at 0.5 MPa) alongside variable end-stop positioning. If you need less thrust, stepping down to an 80 mm bore yields 2513 N of push force, whereas moving up to a 125 mm bore provides 6136 N. The adjustable 250-280 mm travel window is perfect for machines processing multiple product sizes, allowing you to trim the retract distance on the fly rather than installing external stops or buying a fixed-stroke SAI cylinder. As an ISO 15552 profile cylinder, it is dimensionally interchangeable with standard cylinders from other manufacturers utilizing the same mounting interface.
When ordering a replacement, verify the 100 mm bore, 280 mm stroke, 30 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, omitting FB, CA, CB, and CR styles. Because the stroke is 280 mm, ensure adequate external guiding to prevent excessive side-loading on the 25 mm rod, and remember that the air cushions at both ends decelerate the load but do not function as a brake.
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 SAIJ100X280-30S FAQ
The rear of the cylinder features an external adjusting screw that acts as a mechanical stop. For this model, you can trim the 280 mm nominal stroke back by up to 30 mm, creating a usable travel window of 250-280 mm to perfectly tune the end position.
At 0.5 MPa operating pressure, the SAIJ100X280-30-S generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
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