Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm 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
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-50S
The AirTAC SAIJ100X650-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 600-650 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it uses a robust 25 mm carbon steel rod with an M20x1.5 thread to handle significant side loads. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet integrates seamlessly with AirTAC CMSE reed and DMSE electronic switches.
This model utilizes a PT tapered port thread and adjustable air cushions at both ends to decelerate heavy loads smoothly. The rear stopper screw allows precise end-position tuning during commissioning without adding external stops. Remember that this adjuster acts strictly as a travel stop, not a lock; the cylinder requires live air to maintain its position under load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 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 SAIJ100X650-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SAIJ100X650-50S Is Used
Variable End-Stop Tuning
Dial in the exact retraction point between 600 and 650 mm during machine commissioning to accommodate different product lengths without swapping hardware.
Heavy Load Changeover
Leverage the 3927 N push force to move heavy pallets or fixtures, adjusting the travel limit by up to 50 mm instantly when switching production lines.
Precision Pressing
Use the rear mechanical stopper to set a precise lower dead point for pressing applications, ensuring consistent results across multiple cycles.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-50S the Right Cylinder?
Choose this 100 mm bore when a 63 mm cylinder (providing 1559 N push at 0.5 MPa) is insufficient, but a 125 mm bore (6136 N) would be excessive. The 50 mm adjustment range is ideal for product changeovers, allowing you to dial back the 650 mm nominal stroke to exactly 600 mm on the fly. For a fixed end-position without trimming, a standard SAI cylinder is sufficient.
Because the 650 mm stroke is substantial, an external guide is recommended to prevent excessive rod wear and side-loading damage. To replace an ISO 15552 cylinder, match the 100 mm bore, 650 mm stroke, 50 mm adjustment, G1/2 port, PT thread, and -S magnet. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. For load-holding without air pressure, select a SAIL or BSAI cylinder instead.
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 SAIJ100X650-50S FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw lets you mechanically shorten the effective stroke from 650 mm down to 600 mm. This stopper only sets the travel end point; it does not lock the load without continuous air pressure.
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