Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-40
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX250-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 250mm 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
- Stroke250 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 SAIJ100AX250-40
The AirTAC SAIJ100X250-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 210 to 250 mm.
This variant features a SUS420J2 stainless steel rod and PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides, while the rear adjuster acts strictly as a travel stop to fine-tune end positions without requiring external stops.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAIJ100AX250-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SAIJ100AX250-40 Is Used
Machine Changeover
Dial in the 210-250 mm travel window during product size changes to set precise end positions without adding external stopper blocks.
Assembly Line Stops
Adjust the retract end-position on the fly to accommodate varying part dimensions on a high-speed assembly line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-40 the Right Cylinder?
Choose this 100 mm bore when the 80 mm bore (2513 N at 0.5 MPa) lacks thrust, but the 125 mm option is excessive. The 40 mm adjustment window is perfect for product changeovers, allowing you to trim the stroke without swapping the cylinder.
Because the 250 mm stroke exceeds 300 mm? No, but for any long stroke, external guidance is recommended to manage side load. This cylinder uses the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB/CA/CB/CR. The rear adjuster is a stop, not a lock; for load-holding without live air, use SAIL or BSAI.
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 SAIJ100AX250-40 FAQ
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a travel stop, allowing you to shorten the 250 mm nominal stroke by up to 40 mm, creating a usable 210-250 mm window. It is not a lock and cannot hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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