Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30 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 SAIJ40BX1000-30
The AirTAC SAIJ40X1000-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the retract end position. It provides a usable travel window of 970 to 1000 mm, letting you dial in the exact end-stop without adding external stops. Delivering 628 N of push force at 0.5 MPa, it uses a G1/4 port and a 16 mm rod.
This specific configuration incorporates a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. It supports the standard SAIJ mounting set, including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30 |
|---|---|
| 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 SAIJ40BX1000-30
| 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 SAIJ40BX1000-30 Is Used
Variable End-Stop Tuning
Fine-tune the retract position by up to 30 mm during machine commissioning to perfectly align long-stroke pick-and-place movements without swapping cylinders.
Product Size Changeover
Quickly adapt a 1000 mm stroke conveyor reject arm to accommodate different package lengths by adjusting the rear stopper on the fly.
Long-Stroke Positioning
Utilize the 970 to 1000 mm travel window for extended material push-off stations, relying on the SUS304 rod for durability in washdown environments.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30 the Right Cylinder?
Choose this 40 mm bore when you need more force than a 32 mm cylinder provides, stepping up from 402 N to 628 N of push force at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, offering a 30 mm tuning window on a 1000 mm stroke. Because the rear adjuster acts only as a travel stop and the air cushion handles deceleration, neither will hold a load without live air; for dead-air load holding, consider an external rod lock or a SAIL pneumatic lock cylinder.
When replacing an ISO 15552 cylinder, match the 40 mm bore, 1000 mm stroke, 30 mm adjustment range, G1/4 port, and required mounting hardware. Note that at a 1000 mm extended length, the 16 mm rod is subject to increased side-loading; an external guide rail is recommended to prevent premature seal wear. Operating speed ranges from 30 to 800 mm/s.
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 SAIJ40BX1000-30 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 128 kgf.
The rear adjuster acts as a mechanical stop that shortens the effective travel, giving you a usable stroke window between 970 and 1000 mm. It only sets the end position and does not lock the load without continuous air pressure.
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