Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-75 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 SAIJ100BX200-75
The AirTAC SAIJ100X200-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a 200 mm nominal stroke and a 75 mm adjustment range, it provides a usable travel window of 125 to 200 mm. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. In the 100 mm bore class, it delivers 3927 N of push force at 0.5 MPa and reaches a maximum of 801 kgf at 1.0 MPa.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance, paired with a robust M20x1.5 rod thread and G1/2 ports. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors, though this specific SKU is configured without a magnet. The rear adjuster acts purely as a travel stop to set deceleration endpoints and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-75 |
|---|---|
| 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 SAIJ100BX200-75
| 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 SAIJ100BX200-75 Is Used
Product Changeover
Dial in the exact retract end-stop from 125 to 200 mm during format changeovers without swapping cylinders or reengineering fixed hard stops.
Machine Commissioning
Fine-tune the final end position during initial setup to absorb mechanical tolerances, using the rear stopper to set the precise travel limit.
High-Force Positioning
Leverage the 801 kgf maximum thrust to move heavy jigs into their final retracted position while retaining the flexibility to adjust the stroke window.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-75 the Right Cylinder?
Choose this 100 mm bore adjustable-stroke cylinder when your application requires high thrust combined with variable end-stop positioning, such as accommodating product-size changes on a line. If 3927 N of push force at 0.5 MPa is excessive, stepping down to an 80 mm bore yields 2513 N; conversely, moving up to 125 mm provides 6136 N. The adjustable rear screw is ideal for fine-tuning the retract position during machine setup or changeover, whereas a fixed-stroke SAI cylinder locks you into a single exact dimension.
As a dimensionally interchangeable ISO 15552 profile cylinder, this model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. It is configured with PT tapered port threads and no magnet. Because the 200 mm stroke is relatively short, side-load stress is minimal, but an external guide is still recommended for heavy off-center loads. For applications requiring the load to be held mechanically without continuous air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead, as the SAIJ adjuster is not a locking device.
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 SAIJ100BX200-75 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At its maximum rated pressure of 1.0 MPa, it delivers up to 801 kgf of thrust.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back from the 200 mm nominal stroke by up to 75 mm, creating a usable 125 to 200 mm stroke window. It only sets the travel end and does not lock or hold the load without live air pressure.
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