Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-50S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-50S
The AirTAC SAIJ40X60-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 60 mm stroke that can be dialed back by up to 50 mm, yielding a usable travel window of 10 to 60 mm for precise end-position tuning at commissioning. Belonging to the 40 mm bore class, it generates 628 N of push force and 528 N of pull force at 0.5 MPa. This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread.
The rear adjuster functions strictly as a mechanical stop to set the retract end-position and relies on the integrated variable air cushions for end-of-stroke deceleration; it is not a locking mechanism and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead. This model includes a magnet for position sensing, compatible with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side sensor grooves on the extruded aluminum barrel. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-50S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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 SAIJ40BX60-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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 SAIJ40BX60-50S Is Used
Machine Setup Tuning
Dial in the exact retract position within the 10 to 60 mm window during commissioning without machining new mountings or swapping cylinders.
Product Changeover
Quickly adjust the end-stop distance on packaging lines when handling different product sizes, utilizing the 50 mm adjustment range.
Assembly Positioning
Fine-tune the pressing or lifting end-point on an assembly fixture, relying on the 628 N push force and SUS304 rod for repeatable operation.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-50S the Right Cylinder?
Choose this adjustable-stroke cylinder when your application requires variable end-stops or frequent product changeovers without physically swapping the cylinder or adding external stops. If your force requirements are lower, stepping down to a 32 mm bore yields 402 N of push force at 0.5 MPa, while stepping up to a 50 mm bore provides 982 N. The 16 mm diameter piston rod and M12x1.25 rod thread offer robust side-load capacity, but unsupported long strokes still require an external guide. To match this ISO 15552 cylinder for a direct replacement, verify the 40 mm bore, 60 mm stroke, 50 mm adjustment range, PT port thread, and the -S magnet option.
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 SAIJ40BX60-50S FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 50 mm from the nominal 60 mm, providing an adjustable travel window of 10 to 60 mm. It only sets the end position and does not lock the load.
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