Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50
The AirTAC SAIJ100X50-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 50 mm stroke that can be dialed back by up to 50 mm, giving you a 0-50 mm usable travel window for exact end-position tuning during commissioning. In the 100 mm bore class, it delivers a robust 3927 N push force at 0.5 MPa and up to 7068 N at 0.9 MPa.
This extruded aluminum profile cylinder includes variable air cushions at both ends to decelerate the load smoothly. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure. For position holding without continuous pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAIJ100X50-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100X50-50 Is Used
Variable End-Stop Forming
Dial in the exact 0-50 mm travel window for a press or forming operation without machining new hard stops.
Machine Changeover
Quickly adjust the retract position to accommodate new product lengths on a packaging line.
Heavy-Duty Clamping
Leverage the 7068 N push force at 0.9 MPa to secure heavy workpieces while tuning the clamp distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X50-50 the Right Cylinder?
Choose this 100 mm bore unit when your application requires substantial thrust but exact end-stop positioning varies per job. The built-in adjustment screw lets you fine-tune the 0-50 mm travel window without swapping cylinders or adding external stops, a major advantage over a fixed-stroke SAI model during product changeovers. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N push at 0.5 MPa.
When matching an ISO 15552 replacement, verify the 100 mm bore, 50 mm stroke, 50 mm adjustment range, PT tapered port threads, and the carbon steel rod material. Because this unit lacks a magnet, it does not support CMSE or DMSE sensors unless specified with the -S option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100X50-50 FAQ
At 0.5 MPa it 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 adjusting screw acts as a mechanical stop, allowing you to trim the 50 mm nominal stroke back by up to 50 mm, resulting in a 0-50 mm usable travel window. It decelerates the travel end but does not lock the load without live air.
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Standard models usually ship in 3-4 days.
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