Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-40
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX550-40 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 SAIJ100AX550-40
The AirTAC SAIJ100X550-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to trim the effective travel down by up to 40 mm for a precise 510-550 mm usable window. This extruded aluminum body features sensor grooves on both sides for flexible switch mounting.
This specific SKU utilizes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and features a PT tapered port thread. The robust 25 mm rod and M20x1.5 rod thread provide excellent side-load tolerance, though the 550 mm stroke still necessitates an external guide to prevent rod bending. Variable air cushions at both ends work alongside the rear stopper to decelerate the payload smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-40 |
|---|---|
| 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 SAIJ100AX550-40
| 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 SAIJ100AX550-40 Is Used
Product Size Changeovers
Dial in the 510-550 mm travel window on the fly to accommodate different package lengths on a packaging line without physically swapping out the actuator.
Machine Setup Tuning
Use the 40 mm rear adjustment screw to perfectly time the retract end position during initial commissioning, avoiding the need for external mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX550-40 the Right Cylinder?
Choose this 100 mm bore when a 80 mm cylinder lacks thrust; stepping up from an 80 mm bore increases your 0.5 MPa push force from 2513 N to 3927 N, while stepping down to a 63 mm bore drops it to 1559 N. The adjustable stroke is selected over a fixed SAI cylinder when you need to fine-tune the retract end position at commissioning or accommodate varying product sizes on the same line.
For a direct ISO 15552 replacement match, verify the 100 mm bore, 550 mm stroke, 40 mm adjustment, PT port, and required mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Because the stroke is 550 mm, an external guide is highly recommended to manage side loads. Remember that the rear adjuster is a travel stop, not a lock; the SAIJ100X550-40 cannot hold a load without live air, so consider a SAIL or BSAI cylinder if dead-load holding is required.
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 SAIJ100AX550-40 FAQ
At the maximum rated pressure of 1.0 MPa, it can deliver up to 801 kgf.
The rear adjuster acts as an external stopper that lets you shorten the nominal 550 mm stroke by up to 40 mm, providing an effective travel range of 510 to 550 mm. It only sets the end position and does not lock the load without continuous air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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