Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 130mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke130 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S
The AirTAC SAIJ40X130-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628N of push force at 0.5 MPa and features a 130mm nominal stroke that can be fine-tuned down by up to 40mm, providing a usable travel window of 90-130mm. This built-in adjustability allows you to dial in exact end positions during commissioning without adding external stops.
Built for sensing and durability, this -S variant includes a magnet for CMSE reed or DMSE electronic sensors and uses a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads match the standard G1/4 fitting size.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 130 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×130 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX130-40S Is Used
Machine Changeover
Quickly adjust the 90-130mm travel window to accommodate new product lengths on a packaging line without physically swapping the cylinder.
End-Stop Calibration
Fine-tune the retract position during initial commissioning to achieve precise mechanical alignment without machining external spacers.
Variable Product Routing
Adjust the stroke on the fly to deflect different sized items moving down a material handling conveyor at 30-800 mm/s.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX130-40S the Right Cylinder?
Choose this 40mm bore when an application requires precise end-position tuning on the fly, such as accommodating slight product size variations on a conveyor. If your setup needs less force, stepping down to a 32mm bore yields 402N at 0.5MPa; if more thrust is required, a 50mm bore provides 982N. Because this is a 130mm stroke, side-load is minimal, but always ensure the M12x1.25 rod thread is properly aligned to prevent binding.
To match this exact ISO 15552 interchangeable replacement, specify: 40mm bore, 130mm stroke, 40mm adjustment range, PT ports, SUS304 (B) rod material, and the -S magnet. Keep in mind the rear adjuster acts only as a travel stop, not a load lock; for dead-air position holding, consider an AirTAC SAIL or BSAI cylinder 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 SAIJ40 Adjustable Cylinder SAIJ40BX130-40S FAQ
At a standard 0.5 MPa operating pressure, this 40mm bore cylinder generates 628N of push force and 528N of pull force. At its maximum 1.0 MPa pressure, it can output up to 128 kgf.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 40mm. This creates a usable travel window of 90-130mm, allowing you to trim the retract position without replacing the cylinder.
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