Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm 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
- Stroke55 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-40S
The AirTAC SAIJ100X55-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers substantial thrust, pushing 3927 N and pulling 3681 N at 0.5 MPa, making it well-suited for heavy-duty positioning tasks. The integrated -S magnet enables seamless position detection using AirTAC CMSE reed or DMSE electronic solid-state sensors housed within the dual-side barrel grooves.
This specific SKU combines a 55 mm nominal stroke with a 40 mm adjustment range, creating a highly versatile 15-55 mm usable travel window. This built-in adjustability allows you to dial in the exact retract end-position during commissioning or product changeovers without adding external stops. The standard carbon steel rod features an M20x1.5 thread, providing a robust interface for your tooling, while the extruded aluminum barrel maintains a lightweight yet rigid structure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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 SAIJ100X55-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 SAIJ100X55-40S Is Used
Precision End-Stop Tuning
Dial in the exact retract position down to a 15 mm minimum stroke during machine commissioning, eliminating the need to swap out cylinders or fabricate custom external spacers for fine-tuning.
Rapid Product Changeover
Quickly adjust the 15-55 mm travel window on packaging lines when switching between different product sizes, using the rear stopper to set new end positions without altering the fixed tooling mount.
Heavy-Duty Forming Stops
Leverage the 3927 N push force at 0.5 MPa to provide a solid, adjustable mechanical stop for heavy workpiece clamping or light press-fitting operations within a compact footprint.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X55-40S the Right Cylinder?
Selecting this 100 mm bore cylinder is ideal when your application demands high force (up to 7068 N push at 0.9 MPa) but requires variable end-stop positioning within a compact 15-55 mm travel window. If your setup needs less force, stepping down to an 80 mm bore yields 2513 N push at 0.5 MPa; conversely, moving up to a 125 mm bore provides 6136 N. The rear adjuster screw acts purely as a mechanical stop to set the travel limit and relies on the variable air cushions for end-of-stroke deceleration. It does not hold the load dynamically without live air pressure—if your process requires true load-holding on air loss, consider the SAIL pneumatic lock or BSAI clamp-lock series.
For an exact ISO 15552 replacement match, ensure your specifications align with this model's attributes: 100 mm bore, 55 mm stroke, 40 mm adjustment, PT tapered port threads, and the -S magnet option. Mounting is supported via a reduced SAIJ-specific set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Although the stroke is short, the 25 mm rod diameter handles side loads well, though any long-stroke tooling attached to the rod should still be externally guided.
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 SAIJ100X55-40S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. If operated at 0.7 MPa, the push force increases to 5497 N, and it reaches a maximum push force of 7068 N at 0.9 MPa.
The rear adjuster screw allows you to mechanically shorten the 55 mm nominal stroke by up to 40 mm, providing a usable travel window of 15 to 55 mm. This stopper sets the retract end-position for fine-tuning during setup, but it is not a locking device and will not hold the load without continuous air pressure.
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