Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-75
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX550-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-75
The AirTAC SAIJ100X550-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 550 mm travel that can be dialed back by up to 75 mm, yielding a precise usable window of 475 to 550 mm.
This model features a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic sensors if a magnet is specified later. The rear adjuster acts purely as a mechanical stop to set deceleration and travel limits, so live air pressure is still required to hold the load in place.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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 SAIJ100AX550-75 Is Used
Machine Setup Tuning
Dial in the exact 475 to 550 mm end position during commissioning to align heavy tooling without machining new hard stops.
Product Changeover
Quickly adjust the stroke length on packaging lines when transitioning between different box or pallet sizes.
Long-Stroke Positioning
Securely push heavy 100 mm bore loads across a 550 mm span while relying on the rear screw for final travel trimming.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-75 the Right Cylinder?
Choose this 100 mm bore actuator when an application demands high thrust (5497 N at 0.7 MPa) alongside variable end-stop positioning. If your process requires slightly less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa; conversely, moving up to a 125 mm bore provides 8590 N. The adjustable 475-550 mm travel window is perfect for machine setups requiring fine commissioning tweaks or accommodating product size changeovers without adding external stops.
Because this unit features a 550 mm stroke, the 25 mm diameter rod and M20x1.5 rod thread will experience amplified leverage forces over that distance, so an external guide is recommended to prevent side-loading damage. This cylinder uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. It does not hold loads without continuous air pressure; for fail-safe load holding, consider the SAIL or BSAI series.
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 SAIJ100AX550-75 FAQ
The maximum thrust at 1.0 MPa is 801 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 550 mm down to a minimum of 475 mm. This creates a 75 mm adjustable window for fine-tuning without replacing the cylinder.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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