Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S
The AirTAC SAIJ40X105-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628 Newtons of push force at 0.5 MPa and features a highly versatile 30-105 mm usable travel window, letting you trim the nominal 105 mm stroke back by up to 75 mm during commissioning. This wide adjustment band is ideal for dialing in exact end positions without swapping hardware.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance, PT tapered ports, and an integrated magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic solid-state switches exactly where needed.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 105 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 SAIJ40BX105-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×105 | 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 SAIJ40BX105-75S Is Used
Machine Changeover
Dial in the 30-105 mm travel window rapidly when switching a packaging line between different product sizes, using the rear screw to set new end positions without changing the cylinder.
Prototyping Fixtures
Perfect for R&D benches where the exact retract distance must be experimentally determined, allowing engineers to trim up to 75 mm off the stroke on the fly.
End-Position Tuning
Fine-tune the final retract position during machine commissioning to prevent crashes, relying on the 16 mm rod and M12x1.25 thread for stable actuation.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S the Right Cylinder?
Choose this 40 mm bore when you need 628N push force at 0.5 MPa, stepping up from a 32 mm bore (402N) or down from a 63 mm bore (1559N) to match your actual load. The 75 mm adjustment range is exceptionally wide, making this cylinder perfect for prototyping or product-size changeovers where the final end-stop distance is still unknown. Instead of machining external stops, you simply turn the rear screw to fine-tune the retract position.
When specifying an ISO 15552 replacement, match the 40 mm bore, 105 mm nominal stroke, PT port threads, and the -S magnet requirement. Remember that the rear adjuster acts only as a mechanical stop and does not hold the load without live air; for true load-holding, consider an AirTAC SAIL or BSAI cylinder. Because the stroke is 105 mm, side-load risks are minimal, but always guide the load on longer extensions. 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 SAIJ40BX105-75S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 Newtons of push force and 528 Newtons of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 879 Newtons.
The rear adjuster screw lets you mechanically shorten the effective stroke from its 105 mm nominal length down to as little as 30 mm, creating a 30-105 mm usable travel window. This allows precise end-position tuning at commissioning without adding 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 usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX105-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.