Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S
The AirTAC SAIJ40X195-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel anywhere between 120 and 195 mm during commissioning. Belonging to the 40 mm bore class, it delivers 628 N of push force and 528 N of pull force at a 0.5 MPa operating pressure. This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors.
The generous 75 mm adjustment range is ideal for product changeovers on a packaging line, letting you shift the end-of-stroke stop without physically swapping the cylinder or adding external stops. It uses a PT tapered port thread, operates at speeds of 30-800 mm/s, and relies on variable air cushions at both ends to decelerate the load smoothly. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 195 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 SAIJ40BX195-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×195 | 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 SAIJ40BX195-75S Is Used
Machine Setup & Changeover
Dial in the exact end-stop position during commissioning or product size changes without swapping out the physical cylinder or adding external spacers.
Variable End Stops
Adjust the retract stroke on the fly to push different box sizes or pallets to varying depths on a packaging conveyor line.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod for light assembly tasks in washdown or corrosive environments where carbon steel would fail.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S the Right Cylinder?
Choose this 40 mm bore if your application requires 628 N of push force at 0.5 MPa; stepping down to a 32 mm bore drops the force to 402 N, while stepping up to a 50 mm bore increases it to 982 N. An adjustable stroke is highly beneficial when you need precise end-position tuning at machine setup or when accommodating varying product sizes on the same line, which is far more efficient than machining custom spacers or buying multiple fixed-stroke SAI cylinders. To match this ISO 15552 replacement exactly, specify the 40 mm bore, 195 mm stroke, 75 mm adjustment, PT port, and the -S magnet.
Because this is a single-rod design, the 16 mm rod and M12x1.25 thread handle moderate side loads well, but any stroke near 195 mm still requires an external guide to prevent rod binding. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR. If your process requires the cylinder to hold its position without live air, the rear stop will not act as a brake; you should look at the SAIL lock or BSAI clamp-lock series instead.
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 SAIJ40BX195-75S FAQ
At a 0.5 MPa operating pressure, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 128 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 75 mm. This gives the 195 mm nominal stroke a usable travel window of 120 to 195 mm, allowing precise end-position tuning 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 usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.