Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40
The AirTAC SAIJ100X200-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. It features a SUS304 stainless steel rod and PT tapered port threads. The built-in rear stopper allows you to trim the 200mm nominal stroke back by up to 40mm, creating a precise 160-200mm usable travel window for fine-tuning end positions during commissioning.
This adjustable stopper lets you dial in the exact retract distance without swapping the cylinder or adding external stops. The adjuster acts purely as a travel stop and works alongside the standard air cushions to decelerate the load, but it does not hold the load without live air pressure. For load-holding requirements, an external rod lock or a related SAIL pneumatic locking cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX200-40 Is Used
Machine Changeover
Quickly adjust the 160-200mm travel window during product size transitions without physically replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract end position at commissioning to achieve exact mechanical alignment, leveraging the 40mm adjustment range to perfect the stroke.
Heavy Forming Operations
Utilize the 5497N push force at 0.7 MPa for pressing or forming tasks where the rear stopper precisely dials in the final material displacement depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-40 the Right Cylinder?
Choose this 100mm bore cylinder when an application requires heavy thrust (5497N at 0.7 MPa) alongside variable end-stop positioning. If you need less force, stepping down to an 80mm bore yields 3518N at 0.7 MPa, while moving up to a 125mm bore provides 8590N. The adjustable stroke is ideal for product-size changeovers on a line, providing a 160-200mm travel window that removes the need to physically exchange fixed-stroke SAI cylinders.
When replacing an ISO 15552 cylinder, match the 100mm bore, 200mm stroke, 40mm adjustment range, PT port threads, and mounting style. SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 200mm stroke is below the 300mm threshold, side-load risks are moderate, but external guides are still recommended for heavy unsupported loads.
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 SAIJ100 Adjustable Cylinder SAIJ100BX200-40 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 200mm nominal stroke by up to 40mm. This creates a usable travel window of 160-200mm, enabling precise end-position tuning without changing the cylinder.
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