Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-100 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 SAIJ100BX750-100
The AirTAC SAIJ100X750-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 750 mm travel that can be dialed back by up to 100 mm, yielding a usable 650-750 mm positioning window for exact end-stop tuning at commissioning. Delivering 7068N of push force at 0.9 MPa, it handles heavy linear motion tasks with precision.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses a PT tapered port thread. The extruded aluminum barrel includes dual sensor grooves for CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position and cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-100 |
|---|---|
| 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 SAIJ100BX750-100
| 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 SAIJ100BX750-100 Is Used
Long-Stroke Part Ejection
Pushes heavy finished parts out of a machining center over a 750 mm distance, using the 100 mm adjustment window to dial in the exact ejection point without repositioning the cylinder.
Product Size Changeover
Adapts automated packaging lines to different carton lengths by adjusting the retract end-stop from 750 mm down to 650 mm during format changeovers.
Heavy Load Positioning
Moves heavy workpieces along an assembly line, leveraging the 7068N push force at 0.9 MPa while fine-tuning the end-of-stroke deceleration via the integrated air cushions.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-100 the Right Cylinder?
Choose this 100 mm bore actuator when a process requires substantial thrust—7068N at 0.9 MPa—along with on-the-fly end-position adjustments. If an application needs less force, stepping down to an 80 mm bore yields 4523N; for heavier loads, a 125 mm bore provides 11045N. The 100 mm adjustment range is ideal for product changeovers on long-stroke machinery, eliminating the need to physically swap cylinders or bolt on external stop blocks.
When replacing an ISO 15552 cylinder, verify the 750 mm stroke, 100 mm bore, PT port thread, and the required SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2—note that FB, CA, CB, and CR are omitted). Because the stroke is 750 mm, the 25 mm rod and M20x1.5 thread will still experience leverage forces; an external guide is strongly recommended to prevent side-loading damage. For applications requiring the load to be mechanically held without air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is a stop, not a lock.
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 SAIJ100BX750-100 FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder generates a push force of 7068N and a pull force of 3681N. The maximum thrust is 801 kgf at 1.0 MPa.
A rear-mounted adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke from its nominal 750 mm down to a minimum of 650 mm. This creates a 650-750 mm adjustable travel window for fine-tuning end positions during setup, though it does not lock or hold the load without continuous air pressure.
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