Airtac SAIJ40 Adjustable Cylinder SAIJ40AX280-10
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX280-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 280mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke280 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 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 SAIJ40 Adjustable Cylinder SAIJ40AX280-10
The AirTAC SAIJ40X280-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position within a 270-280 mm usable travel window.
This unit features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic sensors directly without extra brackets.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX280-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX280-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 SAIJ40 Adjustable Cylinder SAIJ40AX280-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×280 | 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 SAIJ40 Adjustable Cylinder SAIJ40AX280-10 Is Used
Machine Changeover
Dial in the exact 270-280 mm end-stop during product size transitions on a packaging line without adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke at commissioning to perfect the seating pressure of a 628 N assembly press.
Variable Diverting
Adjust the travel end-point on the fly to accommodate different package sizes on a sorting conveyor.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX280-10 the Right Cylinder?
Choose this adjustable model over a fixed SAI when you need precise end-position tuning at commissioning or during product changeovers without swapping the cylinder. If your application requires less force, stepping down to a bore 32 yields 402 N at 0.5 MPa; stepping up to a bore 50 provides 982 N.
Since the 280 mm stroke exceeds 300 mm guideline for unsupported loads, ensure you use an external guide to prevent side-load damage. Remember that the rear adjuster acts only as a travel stop, not a lock; for load-holding without live air pressure, select an SAIL or BSAI cylinder. This SAIJ uses the reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ40 Adjustable Cylinder SAIJ40AX280-10 FAQ
At 0.7 MPa, the push force increases to 879 N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 10 mm, providing a usable travel window of 270-280 mm. It is a travel stop, not a lock, so it 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.
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