Airtac SAIJ40 Adjustable Cylinder SAIJ40AX75-75
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX75-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 SAIJ40AX75-75
The AirTAC SAIJ40X75-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits the effective travel to be dialed back from 75 mm down to 0 mm. This creates a highly flexible 0-75 mm usable window for exact end-position tuning during commissioning.
Equipped with a SUS420J2 stainless steel rod (code A) and PT tapered ports, this model integrates adjustable air cushions at both ends to manage impact. The extruded aluminum barrel includes sensor grooves on both sides, allowing for the direct mounting of CMSE reed or DMSE electronic solid-state sensors if position feedback is later required.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX75-75 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX75-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAIJ40AX75-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SAIJ40AX75-75 Is Used
Machine Changeover
Dial in the exact 0-75 mm end-stop during product size transitions on a packaging line without replacing the cylinder.
Variable Positioning
Set precise retract distances for assembly stations that require flexible end-position tuning at commissioning.
Stroke Calibration
Fine-tune the travel limit to absorb mechanical tolerances and achieve exact positioning on automated test fixtures.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX75-75 the Right Cylinder?
Choose this adjustable-stroke variant over a fixed SAI model when a machine requires variable end-stops or frequent product-size changeovers without physically swapping the cylinder.
The rear adjuster acts strictly as a mechanical stop to set the travel limit and does not hold the load without live air pressure; for true load-holding without continuous air, consider the SAIL or BSAI series. This SAIJ40X75-75 maintains the standard ISO 15552 mounting interface and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR brackets. The 16 mm rod and M12x1.25 thread provide robust resistance to side-load, though external guiding remains recommended for any unsupported loads.
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 SAIJ40AX75-75 FAQ
The rear adjuster allows you to shorten the nominal 75 mm stroke by up to 75 mm, creating a usable travel window of 0 to 75 mm. This mechanical stopper fine-tunes the end position at commissioning but does not lock the load without live air.
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.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40AX75-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.