Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 210mm 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
- Stroke210 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S
The AirTAC SAIJ100X210-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you dial back the nominal 210 mm stroke by up to 40 mm. This creates a precise 170-210 mm usable travel window, allowing you to fine-tune the end position at commissioning without swapping the cylinder or adding external stops. It delivers a robust 3927 N push force at 0.5 MPa and 5497 N at 0.7 MPa.
Built with a SUS304 stainless steel rod (option B) and PT tapered port threads, this unit is engineered for demanding environments. The extruded aluminum barrel includes sensor grooves on both sides, and because this SKU includes the -S magnet, it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches. The mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 210 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 SAIJ100BX210-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×210 | 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 SAIJ100BX210-40S Is Used
Changeover Calibration
Dial in the 170-210 mm travel window during product size changeovers on a packaging line without disassembling the pneumatic infrastructure.
End-Stop Tuning
Fine-tune the exact retract position during machine commissioning using the rear adjuster, avoiding the need to bolt on external mechanical stops.
Stainless Rod Actuation
Leverage the SUS304 stainless steel rod and 3927 N push force for robust actuation in environments where corrosion resistance is a priority.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires variable end-stops or frequent product-size changeovers, rather than committing to a fixed-stroke SAI cylinder. If your application needs less thrust, stepping down to a bore 63 variant yields 1559 N at 0.5 MPa; conversely, a bore 125 provides 6136 N for heavier loads. Remember that the rear adjuster acts only as a travel stop, not a lock. It cannot hold a load without live air pressure. For true position-holding, consider an external pilot-operated check valve or AirTAC SAIL and BSAI locking cylinders.
Because the 210 mm stroke exceeds the 300 mm side-load threshold? No, at 210 mm it is below the strict guide requirement, but the 25 mm rod diameter still handles side loads well. For exact ISO 15552 replacement matching, verify the 100 mm bore, 210 mm stroke, 40 mm adjustment, G1/2 port, PT thread, and -S magnet requirements.
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 SAIJ100BX210-40S FAQ
The rear adjuster screw allows you to shorten the effective travel by up to 40 mm. This creates a 170-210 mm usable stroke window, letting you set the exact end position during commissioning without replacing the cylinder.
At a 0.5 MPa operating pressure, it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
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.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.