Airtac SAIJ40 Adjustable Cylinder SAIJ40AX20-10
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX20-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 20mm 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
- Stroke20 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 SAIJ40AX20-10
The AirTAC SAIJ40X20-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 10 to 20 mm, allowing you to dial back the 20 mm nominal stroke by up to 10 mm during commissioning.
This variant uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance over standard carbon steel. It features PT tapered port threads (G1/4) and lacks a piston magnet. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX20-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX20-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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 SAIJ40AX20-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 SAIJ40AX20-10 Is Used
Precision End-Stop Tuning
Dial in the exact retract distance within a 10-20 mm window to perfect delicate pressing or clamping forces during machine commissioning.
Product Changeover
Quickly adjust the rear stopper to accommodate slightly different product heights on a conveyor line without swapping the cylinder.
Short-Stroke Actuation
Execute compact linear movements in tight machinery spaces where a fixed 20 mm stroke needs minor field adjustment.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX20-10 the Right Cylinder?
The adjustable stroke is perfect for setups requiring exact end-position tuning without adding external stops. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For load-holding, consider the SAIL or BSAI series.
For an exact ISO 15552 replacement, match the 40 mm bore, 20 mm stroke, 10 mm adjustment, PT G1/4 port, and the chosen mounting accessory. Because the stroke is under 300 mm, side-load stress is minimal, though the 16 mm rod still handles standard operational loads effectively.
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 SAIJ40AX20-10 FAQ
At the maximum operating pressure of 1.0 MPa, it delivers up to 128 kgf.
The rear adjuster screw lets you shorten the 20 mm nominal stroke by up to 10 mm, creating a 10-20 mm usable travel window. This allows fine-tuning of the end position at commissioning without external stops.
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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