Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 950mm 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
- Stroke950 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S
The AirTAC SAIJ40X950-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 950mm stroke that can be dialed back by up to 100mm, yielding a usable travel window of 850-950mm for precise end-position tuning. In the 40mm bore class, it delivers 628N of push force and 528N of pull force at 0.5MPa.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for electronic DMSE or reed CMSE sensors. The extruded aluminum barrel incorporates sensor grooves on both sides. It uses a PT tapered G1/4 port and offers variable air cushions at both ends to decelerate the payload.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 950 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 SAIJ40BX950-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×950 | 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 SAIJ40BX950-100S Is Used
Machine Changeover
Dial in the 850-950mm travel window during product size transitions without physically swapping the cylinder or adding external mechanical stops.
Variable End-Stop Positioning
Fine-tune the retract distance on a long-stroke conveyor sorting arm to accommodate varying package dimensions on the fly.
Commissioning Calibration
Use the 100mm rear adjustment range to safely set exact end positions during initial machine setup, absorbing kinetic energy with the 30mm air cushion.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S the Right Cylinder?
Choose this 40mm bore when you need 628N thrust at 0.5MPa and a 950mm travel distance that requires exact end-stop tuning without external stops. If your application demands less force, the 32mm bore offers 402N; if you need more power, the 50mm bore provides 982N. Because the 950mm stroke is long, an external guide is highly recommended to manage side loads and prevent rod bending. The 16mm rod and M12x1.25 thread provide a robust interface, but the rear adjuster acts only as a travel stop. It does not hold the load without live air; for true load-holding, select an SAIL or BSAI cylinder. This SAIJ model 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 SAIJ40BX950-100S FAQ
The rear adjuster screw lets you shorten the 950mm nominal stroke by up to 100mm, creating a usable travel window of 850-950mm. This allows precise end-position tuning at commissioning without replacing the cylinder.
At 0.5MPa operating pressure, the SAIJ40X950-100-S provides 628N of push force and 528N of pull force. It can reach up to 1130N push force at 0.9MPa.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX950-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.