Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-50
The AirTAC SAIJ100X500-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a robust 7068N of push force at 0.9 MPa and uses a G1/2 PT port. The integrated adjuster allows you to fine-tune the effective travel window down from a 500 mm nominal stroke to a 450 mm minimum, providing precise end-position calibration without external stops.
Equipped with a 25 mm carbon steel rod and M20x1.5 thread, this 100 mm bore unit handles substantial side loads, though the 500 mm stroke benefits from an external guide to prevent rod binding. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE or DMSE switches if a magnet is specified later.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100X500-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SAIJ100X500-50 Is Used
Machine Setup & Changeover
Dial in the exact 450 to 500 mm end-stop during machine commissioning or product size changes without physically swapping the cylinder or adding external stopper blocks.
Variable End-Stop Positioning
Ideal for automated lines where the retract position must be tweaked within a 50 mm window to accommodate different material thicknesses or tooling offsets.
Heavy-Duty Clamping
Leverage the 7068N push force to securely clamp large workpieces, using the rear adjuster to limit travel and prevent over-clamping on delicate fixtures.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X500-50 the Right Cylinder?
Choose this 100 mm bore adjustable cylinder when an 80 mm bore (yielding 4523N push at 0.9 MPa) is insufficient for your load, but a 125 mm bore is oversized. The 50 mm adjustment range is ideal for product changeovers on a line, letting operators dial in the exact retract distance on the fly instead of swapping out a fixed-stroke SAI cylinder.
Remember that the rear adjuster acts strictly as a mechanical stop and does not hold the load without live air pressure; for true pneumatic locking without air, consider the SAIL or BSAI series. As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints but uses a reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
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 SAIJ100X500-50 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke from 500 mm down to 450 mm. This provides a 50 mm tuning window for precise end-position control without replacing the cylinder.
At 0.9 MPa operating pressure, the SAIJ100X500-50 generates a push force of 7068N and a pull force of 3681N. The maximum theoretical force at 1.0 MPa is 801 kgf.
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