Airtac SAIJ40 Adjustable Cylinder SAIJ40AX45-30
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX45-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 45mm 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
- Stroke45 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 SAIJ40AX45-30
The AirTAC SAIJ40X45-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, giving you a usable travel window of 15-45 mm for precise end-position tuning. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered port threads and operates without a magnet. The rear stopper screw lets you dial in the exact retract distance during commissioning without adding external stops, while the standard variable air cushions absorb end-of-stroke kinetic energy.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX45-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX45-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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 SAIJ40AX45-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 SAIJ40AX45-30 Is Used
Machine Changeover
Quickly fine-tune the 15-45mm retract distance when switching between product sizes on a packaging line without replacing hardware.
Sensor Calibration
Provides a variable end-stop to perfectly seat delicate components, preventing crushing forces during automated assembly.
Prototype Setup
Allows engineers to dial in the exact stroke length during initial machine commissioning before finalizing fixed positions.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX45-30 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end stops or frequent product changeovers, replacing the need to swap out a fixed-stroke SAI cylinder. When matching ISO 15552 replacements, verify the 45mm stroke, 30mm adjustment range, PT port thread, and mounting style.
Remember that the rear adjuster functions strictly as a travel stop, not a locking device; the cylinder cannot hold a load without live air pressure. For applications requiring true load-holding, consider the SAIL or BSAI series. Mounting options include 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 SAIJ40AX45-30 FAQ
The rear adjuster screw lets you mechanically shorten the effective stroke by up to 30mm. This creates a usable travel window of 15-45mm, allowing you to set the exact retract end-position without swapping cylinders.
The maximum push force is 1130N 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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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