Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100 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 SAIJ40BX200-100
The AirTAC SAIJ40X200-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 200 mm travel by up to 100 mm. This creates a wide usable movement window of 100-200 mm, giving you exact end-position control during commissioning without needing to swap hardware. With a 40 mm bore, it delivers 628 N of push force and 528 N of pull force at 0.5 MPa.
This unit is configured with a SUS304 stainless steel rod (option B) for superior corrosion resistance, alongside PT tapered port threads. It features adjustable air cushions at both ends to manage deceleration. The rear adjuster acts purely as a mechanical stop to set the travel limit; it does not lock or hold the load without live air pressure. For position-holding needs, explore the SAIL or BSAI series.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100 |
|---|---|
| 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 SAIJ40BX200-100
| 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 SAIJ40BX200-100 Is Used
Variable End-Stop Setup
Dial in the exact 100-200 mm travel window during machine commissioning to fine-tune end positions without replacing the cylinder.
Product Size Changeovers
Quickly retract the stroke by up to 100 mm to accommodate different package lengths on a single production line.
Corrosion-Resistant Actuation
The SUS304 stainless steel rod provides reliable operation in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX200-100 the Right Cylinder?
Choose this 40 mm bore when your application requires around 628 N of thrust at 0.5 MPa. If you need less force, stepping down to a 32 mm bore yields 402 N, while moving up to a 50 mm bore provides 982 N. The 100 mm adjustment range is ideal for machinery that handles frequent product-size changeovers, allowing operators to set variable end stops on the fly rather than machining external stopper blocks.
As an ISO 15552 profile cylinder, it is dimensionally interchangeable with standard ISO 15552 mounting interfaces. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 200 mm stroke meets the 300 mm side-load threshold, ensure you use an external guide to support the load and prevent excessive wear on the 16 mm rod and M12x1.25 rod thread. Without a magnet, it cannot host CMSE or DMSE sensors.
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 SAIJ40BX200-100 FAQ
At 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 travel from its 200 mm nominal stroke down to as little as 100 mm. This provides a 100-200 mm usable window for fine-tuning end positions at commissioning.
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