Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100S
The AirTAC SAIJ40X1000-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 1000 mm travel by up to 100 mm. This creates a 900-1000 mm usable window, letting you fine-tune the retract end-position at commissioning without adding external stops. The 40 mm bore generates 628 N of push force and 528 N of pull force at 0.5 MPa.
This unit includes a SUS304 stainless steel rod for superior corrosion resistance and a -S magnet for position sensing. It operates at 30-800 mm/s and uses PT G1/4 tapered ports. The extruded aluminum barrel integrates sensor grooves on both sides for AirTAC CMSE reed and DMSE electronic switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 1000 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 SAIJ40BX1000-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×1000 | 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 SAIJ40BX1000-100S Is Used
Variable End-Stop Tuning
Fine-tune the 900-1000 mm retract position on machining fixtures when raw material lengths vary, avoiding the need to swap out the entire cylinder.
Product Changeover
Rapidly adjust the stroke window on packaging lines during format changes, dialing the travel back by up to 100 mm to accommodate different carton sizes.
Long-Travel Setup
Commission extended reach automated machinery by precisely setting the exact end-position without fabricating and bolting on external mechanical stops.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100S the Right Cylinder?
Choose this 40 mm bore adjustable cylinder when your setup requires a 628 N thrust class at 0.5 MPa but exact end-of-stroke positioning varies by product size. If you need higher clamping power, stepping up to the 50 mm bore yields 982 N of push force. The rear adjuster screw acts purely as a travel stop for deceleration; it does not hold the load without live air pressure. For true fail-safe load holding, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 40 mm bore, 1000 mm stroke, 100 mm adjustment range, PT G1/4 port, and -S magnet. Because the 1000 mm stroke is long and the 16 mm rod has an M12x1.25 thread, an external guide rail is recommended to prevent excessive side-loading and rod deflection during extended travel.
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 SAIJ40BX1000-100S FAQ
The rear adjuster screw lets you shorten the effective travel from its 1000 mm nominal stroke down to 900 mm, providing a 900-1000 mm window. It acts as a mechanical stop to set the retract end-position and does not lock the load without air pressure.
At 0.5 MPa operating pressure, it provides 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa operating pressure, it delivers 1130 N of push force.
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