Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20
The AirTAC SAIJ100X145-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 125 to 145 mm. Delivering 3927 N of push force at 0.5 MPa, it handles substantial actuation tasks while allowing precise end-position tuning during commissioning without swapping out the unit. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This model incorporates a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the travel end, meaning it does not hold the load without live air pressure. For load-holding requirements, exploring SAIL or BSAI cylinders is recommended.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 145 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 SAIJ100AX145-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×145 | 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 SAIJ100AX145-20 Is Used
Machine Setup Changeovers
Fine-tune the 125-145 mm travel end during product-size line changeovers without bolting on external stops or replacing the entire cylinder.
End-Position Calibration
Dial in the exact retracted position during initial commissioning to perfect part seating or clamping forces using the rear adjustment screw.
Heavy-Duty Positioning
Leverage the 3927 N push force to move heavy jigs or tooling plates into precise working positions before a secondary process begins.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20 the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 2513 N at 0.5 MPa) lacks the necessary thrust for your application, but stepping up to a 125 mm bore is unnecessary. The adjustable 125-145 mm travel window is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Since the rear adjuster only stops travel and does not lock the rod, external rod locks or pilot-operated check valves are required if the load must be held without continuous air pressure.
When matching this ISO 15552 cylinder for a replacement, verify the 100 mm bore, 145 mm nominal stroke, 20 mm adjustment range, PT port threads, and the specific mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Because this configuration lacks the -S magnet option, it cannot host CMSE or DMSE sensors without a rod magnet upgrade.
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 SAIJ100AX145-20 FAQ
The rear adjuster screw allows you to mechanically shorten the effective stroke by up to 20 mm, providing a usable travel window of 125 to 145 mm. It functions as a travel stop and does not lock the load without live air pressure.
At a standard 0.5 MPa operating pressure, the SAIJ100X145-20 provides 3927 N of push force and 3681 N of pull force. It can deliver up to 7068 N of push force at 0.9 MPa.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.