Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-50 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 SAIJ100BX200-50
The AirTAC SAIJ100X200-50 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 7068N of push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks. By turning the external adjusting screw at the rear, you can shorten the effective travel from its 200 mm nominal stroke down to 150 mm, creating a precise 150-200 mm usable window without swapping out the barrel.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance in humid or washdown environments. It uses PT tapered port threads (G1/2) and omits a piston magnet. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to add CMSE reed or DMSE electronic sensors later if position feedback becomes necessary.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-50 |
|---|---|
| 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 SAIJ100BX200-50
| 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 SAIJ100BX200-50 Is Used
Machine Changeover
Dial in the 150-200 mm travel window on the fly to accommodate different product lengths during production line changeovers.
Heavy Pressing
Leverage the 7068N push force at 0.9 MPa for heavy-duty pressing and forming operations requiring exact end-position tuning.
Variable End Stops
Use the rear stopper screw to set precise retract positions without machining custom external stop blocks for each new fixture.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-50 the Right Cylinder?
Choose this 100 mm bore when your application requires substantial thrust—such as the 5497N push force at 0.7 MPa—but you also need leeway to dial in the exact end position during commissioning. If your force requirements are lower, stepping down to an 80 mm bore yields 3518N at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590N. The adjustable stroke is ideal for product-size changeovers on a line, acting as a variable end-stop that fine-tunes the retract position without adding external stops.
To replace an ISO 15552 cylinder, match the 100 mm bore, 200 mm stroke, 50 mm adjustment range, PT port threads, and the appropriate mounting bracket. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Remember that the rear adjuster functions strictly as a travel stop, not a load-holding lock; if you need to hold a load without live air pressure, look to the SAIL or BSAI 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 SAIJ100 Adjustable Cylinder SAIJ100BX200-50 FAQ
At 0.9 MPa, the push force is 7068N and the pull force is 3681N. At 0.5 MPa, it provides 3927N of push force and 3681N of pull force.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 200 mm nominal stroke by up to 50 mm, providing a usable travel window of 150 to 200 mm. It only sets the end position and does not lock the load without air pressure.
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