Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke75 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S
The AirTAC SAIJ40X75-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 65 to 75 mm, allowing you to dial back the nominal 75 mm stroke by up to 10 mm during commissioning without adding external stops. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, and because this is an -S model, it includes a magnet ready for CMSE reed or DMSE electronic solid-state switches. The SAIJ mounting set omits FB, CA, CB, and CR options, utilizing Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S |
|---|---|
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S
| 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 SAIJ40BX75-10S Is Used
Machine Changeover
Fine-tune the 65-75 mm travel end-stop on the fly when switching between product sizes on a packaging line, eliminating the need to physically swap cylinders.
Clamping Force Setup
Dial in the exact clamping position against a workpiece, using the 628 N thrust at 0.5 MPa while compensating for minor material thickness variations.
Sensor-Ready Positioning
Leverage the integrated magnet with DMSE electronic sensors to confirm exact end-of-stroke positions after making mechanical adjustments to the rear stopper.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S the Right Cylinder?
Choose this 40 mm bore when an application requires around 628 N of push force at 0.5 MPa, offering a step up from the 32 mm bore (402 N) without the bulk of the 50 mm option (982 N). An adjustable stroke is ideal for setups needing precise end-position tuning during product changeovers, whereas a fixed SAI cylinder is sufficient for static, unchanging endpoints. For load-holding without live air pressure, note that the SAIJ rear adjuster acts only as a travel stop and does not function as a lock; consider the SAIL or BSAI series for those requirements.
When replacing an ISO 15552 cylinder, match the 40 mm bore, 75 mm nominal stroke, 10 mm adjustment range, PT G1/4 port, and -S magnet. The 16 mm rod and M12x1.25 thread provide robust load-bearing, but even with a 75 mm stroke, always ensure adequate guiding to prevent side-load damage.
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 SAIJ40BX75-10S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. The 10 mm rear adjuster creates a usable travel window of 65 to 75 mm from the 75 mm nominal stroke.
No, the rear adjuster is a travel stop, not a locking mechanism. The cylinder cannot hold a load without live air pressure. For fail-safe load holding, you would need to use a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX75-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.