Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX50-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40
The AirTAC SAIJ100X50-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 50 mm travel by up to 40 mm. This creates a highly versatile 10-50 mm usable travel window, perfect for dialing in exact end positions during machine commissioning without swapping hardware.
This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel retains standard sensor grooves on both sides, though this unit is supplied without a magnet. The rear adjuster acts purely as a mechanical stop to set the retract position and does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100BX50-40 Is Used
Precision Positioning
Dial in the exact 10 to 50 mm retract distance during machine setup to accommodate varying part sizes without adding external stopper blocks.
Product Changeover
Quickly readjust the cylinder stroke on the production line when switching between product variants, minimizing downtime and tooling swaps.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-40 the Right Cylinder?
If your application demands less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. Because the nominal stroke is only 50 mm, side-load risks are minimal, but an external guide is always recommended for heavy loads. Remember that the rear adjuster is a travel stop, not a lock; for true load-holding without live air, select an AirTAC SAIL or BSAI cylinder.
To match this exact configuration for an ISO 15552 replacement, specify the 100 mm bore, 50 mm stroke, 40 mm adjustment range, PT port threads, SUS304 rod material, and no magnet. The SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
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 SAIJ100BX50-40 FAQ
The rear adjuster screw lets you shorten the 50 mm nominal stroke by up to 40 mm, providing a usable travel window of 10 to 50 mm. It acts as a mechanical stop to fine-tune the retract end position at commissioning.
At 0.7 MPa, the push force increases to 5497 N.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SAI Cylinders
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