Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-40S
The AirTAC SAIJ100X500-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 460 to 500 mm usable travel window, allowing you to dial back the nominal 500 mm stroke by up to 40 mm during machine commissioning without swapping the cylinder. It delivers substantial thrust, generating 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa.
This unit includes a SUS304 stainless steel rod for superior corrosion resistance and is equipped with a magnet (-S) for electronic DMSE solid-state or CMSE reed switch position sensing. The extruded aluminum barrel integrates sensor grooves on three sides. Because the 500 mm stroke is relatively long, an external guide is recommended to manage side loads, as the 25 mm rod and M20x1.5 thread alone are not designed to carry lateral forces.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100BX500-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SAIJ100BX500-40S Is Used
Product Changeover
Dial in the exact 460 to 500 mm end-stop position during packaging line format changes without replacing the actuator.
Machine Setup
Fine-tune the rear stroke adjuster at commissioning to perfect the pressing depth on heavy-duty assembly stations.
Variable End Stops
Adjust the retract position on the fly for automated material handling equipment that processes varying part sizes.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-40S the Right Cylinder?
Choose this 100 mm bore actuator when an application requires heavy thrust—such as 5497 N at 0.7 MPa—that exceeds the output of an 80 mm bore (3518 N at 0.7 MPa). The adjustable stroke is ideal for product changeovers where exact end-of-travel positions vary by a few millimeters, eliminating the need to bolt on external stops or replace a fixed-stroke SAI cylinder. The rear adjuster acts purely as a mechanical travel stop; it does not lock the load. For position holding without live air pressure, select a SAIL pneumatic lock or BSAI clamp-lock cylinder.
To replace an ISO 15552 cylinder, match the 100 mm bore, 500 mm nominal stroke, 40 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, omitting the FB, CA, CB, and CR options found on some standard actuators.
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 SAIJ100BX500-40S FAQ
The rear adjuster allows you to shorten the effective stroke from 500 mm down to 460 mm. This creates a 40 mm adjustable window for fine-tuning the retract end position at commissioning without adding external stops.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 801 kgf (approx. 7850 N) of push force.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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