Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 750mm 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
- Stroke750 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-30S
The AirTAC SAIJ100X750-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 750 mm stroke that can be dialed back by up to 30 mm, yielding a precise 720-750 mm usable travel window for commissioning fine-tuning without adding external stops. In this B-rod configuration, the piston rod is SUS304 stainless steel, offering high corrosion resistance for harsh or washdown environments. Equipped with a magnet (-S), it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors mounted in the dual-side sensor grooves of the extruded aluminum barrel.
Delivering 5497 N of push force and 7068 N at 0.9 MPa, this 100 mm bore cylinder handles substantial loads at speeds of 30-800 mm/s. The M20x1.5 rod thread and 25 mm rod diameter provide robust mechanical connectivity, though the 750 mm stroke length requires an external guide to prevent excessive side-loading on the rod. Pneumatic cushioning at both ends, adjustable over a 36 mm stroke length, manages end-of-travel deceleration.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 750 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 SAIJ100BX750-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×750 | 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 SAIJ100BX750-30S Is Used
Product Changeover
Dial in the 30 mm stroke adjustment window during format changes on packaging lines to accommodate varying carton sizes without replacing the cylinder.
Variable End-Stop Positioning
Set precise 720 to 750 mm retracted end-positions for diverter arms or pusher plates on a conveyor, fine-tuning the travel limit at commissioning.
Heavy Load Actuation
Leverage the 5497 N push force at 0.7 MPa to move heavy pallets or chassis, relying on the SUS304 rod for corrosion resistance in industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-30S the Right Cylinder?
Select this 100 mm bore adjustable cylinder when your application requires a 720-750 mm travel window and heavy thrust up to 5497 N at 0.7 MPa. If your force requirements are lower, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590 N at 0.7 MPa. The SAIJ100X750-30-S is chosen over a fixed SAI cylinder when you need variable end-stops for product changeovers on a line, utilizing the rear screw stopper rather than machining new mounting distances.
Because the 750 mm stroke is substantial, an external guide rail is strongly recommended to manage side loads and prevent rod binding. This cylinder uses PT tapered port threads (G1/2 port size) and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Note that the rear adjuster and air cushions act only as travel stops and deceleration; they do not hold the load without live air. For fail-safe load holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) 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 SAIJ100BX750-30S FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.7 MPa the push force is 5497 N, and it reaches a maximum push force of 7068 N at 0.9 MPa.
A rear-mounted screw stopper allows you to shorten the 750 mm nominal stroke by up to 30 mm, creating a 720-750 mm usable travel window. This adjuster acts as a mechanical stop for end-position tuning and does not lock the load without continuous air pressure.
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