Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100 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 SAIJ40BX1000-100
The AirTAC SAIJ40X1000-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window down to 900-1000 mm. Delivering 628 N of push force at 0.5 MPa, it is equipped with a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model provides a 1000 mm nominal stroke and operates at speeds of 30-800 mm/s with variable air cushions at both ends. The rear adjuster acts purely as a travel stop for end-position tuning during commissioning; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100 |
|---|---|
| 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 SAIJ40BX1000-100
| 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 SAIJ40BX1000-100 Is Used
Variable End-Stop Conveying
Set exact 900 to 1000 mm retraction points on a conveyor diverter during product size changeovers without swapping cylinders.
Machine Commissioning
Fine-tune the rear travel stop during initial setup to dial in the exact 1000 mm stroke required for a new assembly fixture.
Long-Stroke Positioning
Use the 100 mm adjustment window to calibrate long-travel pick-and-place axes, ensuring precise end-positioning without external stoppers.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-100 the Right Cylinder?
Choose this 40 mm bore when your application requires 628 N push force at 0.5 MPa (or 879 N at 0.7 MPa) but needs precise end-position tuning over a 900-1000 mm window without adding external stops. If you need less force, the 32 mm bore offers 402 N; if you need more, the 50 mm bore provides 982 N. Because the stroke is 1000 mm, the 16 mm rod and M12x1.25 thread will still experience deflection under high side-loads, so an external guide rail is strongly recommended to prevent binding.
An adjustable stroke is ideal for machine setup and product changeovers where the exact end-stop varies, replacing the need for a fixed-stroke SAI cylinder. This SAIJ configuration uses PT tapered ports, a SUS304 rod, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR mounts. It is dimensionally interchangeable per ISO 15552.
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 SAIJ40BX1000-100 FAQ
It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, operating at a speed range of 30-800 mm/s. The 16 mm rod uses an M12x1.25 thread.
The rear adjuster screw lets you shorten the effective travel from 1000 mm down to 900 mm. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
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