Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100S
The AirTAC SAIJ40X200-100-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 100 to 200 mm, allowing you to dial back the end-of-stroke position by up to 100 mm during machine commissioning. Delivering 628 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for electronic DMSE or reed CMSE position sensing.
This adjustable-stop design eliminates the need to swap cylinders or bolt on external stopper blocks when product sizes change. The rear screw acts strictly as a travel stop and deceleration aid, meaning it will not hold a load without continuous live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead. The extruded aluminum barrel includes dual sensor grooves, and the PT tapered port threads ensure a robust pneumatic connection.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 SAIJ40BX200-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SAIJ40BX200-100S Is Used
Variable End-Stop Tuning
Fine-tune the retraction point by up to 100 mm during commissioning to perfectly match sensor targets without physically replacing the actuator.
Product Changeover
Quickly adapt the stroke length on a packaging line when handling different box sizes, using the rear adjuster to set new travel limits.
Corrosive Assembly Tasks
Leverage the SUS304 stainless steel rod for light assembly tasks in environments requiring high corrosion resistance and adjustable reach.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100S the Right Cylinder?
Choose this 40 mm bore cylinder when your application requires precise variable end-stops within a 100 to 200 mm travel window. If your setup needs less thrust, stepping down to a 32 mm bore yields 402 N of push force at 0.5 MPa. Conversely, moving up to a 50 mm bore increases that output to 982 N. The integrated magnet on this -S model enables direct mounting of DMSE solid-state or CMSE reed switches along the standard sensor grooves.
Because the nominal stroke is 200 mm, you should evaluate side-loading forces and utilize an external guide rail to support the load. The SAIJ mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, omitting the FB, CA, CB, and CR options. It is dimensionally interchangeable per ISO 15552 standards, featuring a G1/4 port and M12x1.25 rod thread.
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 SAIJ40BX200-100S FAQ
The rear adjuster screw lets you mechanically shorten the effective stroke from 200 mm down to as little as 100 mm. This creates a 100-200 mm usable travel window, allowing you to set the exact end position at commissioning without changing the cylinder.
At a standard operating pressure of 0.5 MPa, the 40 mm bore generates 628 N of push force and 528 N of pull force. It can reach up to 1130 N of push force at 0.9 MPa.
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