Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75
The AirTAC SAIJ100X350-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 275 to 350 mm, enabling precise end-position tuning at commissioning without adding external stops. Delivering 7068 N of push force at 0.9 MPa, it handles substantial workloads while operating at speeds of 30-800 mm/s.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAIJ100BX350-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SAIJ100BX350-75 Is Used
Product Changeover Setup
Dial in the 275-350 mm travel window instantly during format changeovers on packaging lines, avoiding the need to physically swap out cylinders for different carton sizes.
Heavy-Duty Pressing
Leverage the 7068 N push force at 0.9 MPa for pressing operations while using the rear stopper to fine-tune the exact bottoming position without reprogramming the machine.
Variable End-Stop Actuation
Implement multiple effective stroke lengths from a single cylinder on automated assembly machines, using the 75 mm adjustment range to accommodate varied part heights.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75 the Right Cylinder?
Choose this 100 mm bore when you need heavy thrust beyond the 4523 N (at 0.5 MPa) of an 80 mm cylinder, but less than the massive 11045 N push of a 125 mm model. The 75 mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the exact 275-350 mm travel without swapping the cylinder. To match this ISO 15552 replacement, specify the 100 mm bore, 350 mm stroke, PT ports, and the SUS304 (B) rod material.
With a 350 mm stroke, the 25 mm rod diameter should be guided externally to prevent excessive side-loading and premature seal wear. Remember that the rear screw adjuster is a stop, not a lock; for load-holding without live air, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX350-75 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 75 mm. This creates a usable travel window of 275 to 350 mm, which can be fine-tuned during commissioning without changing the cylinder.
At 0.7 MPa it provides 5497 N of push force, and at 0.9 MPa it delivers 7068 N. The maximum theoretical push force at 1.0 MPa is 801 kgf.
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