Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 270mm 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
- Stroke270 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50
The AirTAC SAIJ100X270-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 270 mm stroke that can be dialed back by up to 50 mm, creating a precise 220-270 mm usable travel window for product changeovers without swapping hardware.
Delivering 5497 N of push force at 0.7 MPa, this 100 mm bore unit utilizes a robust 25 mm carbon steel rod with an M20x1.5 thread to handle high side loads. It features PT tapered ports and dual-sided sensor grooves, allowing you to easily mount CMSE reed or DMSE electronic switches exactly where needed.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 270 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 SAIJ100X270-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×270 | 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 SAIJ100X270-50 Is Used
Product Size Changeovers
Dial in the 220-270 mm travel window on the fly to accommodate different package lengths on a packaging line without changing out the cylinder.
Machine Setup Tuning
Fine-tune the retract end position during initial commissioning to achieve exact positioning, eliminating the need to machine custom spacer blocks.
Heavy Material Handling
Leverage the 5497 N push force at 0.7 MPa to move heavy pallets or workpieces, using the adjustable stop to vary the push distance safely.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50 the Right Cylinder?
Choose this 100 mm bore cylinder when an 80 mm bore falls short on power, stepping up from the 80 mm model's 3518 N push force at 0.7 MPa to a commanding 5497 N. The adjustable rear stopper allows you to fine-tune the end position at commissioning, whereas a fixed-stroke SAI cylinder would require external stops or physical shimming to achieve a variable end-stop.
Because the 270 mm stroke exceeds 300 mm is not the case here, but at this length you should still ensure external guide rails support the load to prevent rod binding. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series. This SKU uses a PT tapered port, carbon steel rod, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) with no magnet installed.
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 SAIJ100X270-50 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 5140 N of pull force. It can reach a maximum push force of 7068 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from its 270 mm nominal length down to 220 mm. This stopper only sets the travel end and does not lock the load without continuous air pressure.
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