Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-30
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 160mm 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
- Stroke160 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-30
The AirTAC SAIJ40X160-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you dial back the nominal 160 mm travel by up to 30 mm. This creates a 130-160 mm usable stroke window, allowing precise end-position tuning at commissioning without adding external stops. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, fitting cleanly into medium-duty handling tasks.
This specific SKU uses a SUS304 stainless steel rod (code B) for superior corrosion resistance and features PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 SAIJ40BX160-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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 SAIJ40BX160-30 Is Used
Machine Setup Calibration
Dial in the exact 130-160 mm end-position during initial commissioning to perfect a pressing or lifting operation without machining custom spacers.
Product Changeover
Quickly adjust the stroke by up to 30 mm on a packaging line when switching to a different product size, reducing downtime between batches.
Variable End-Stop Assembly
Use the rear stopper to fine-tune the retraction point on an assembly fixture, ensuring delicate components are seated perfectly every time.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-30 the Right Cylinder?
Select this 40 mm bore when a 32 mm bore (offering 402 N push at 0.5 MPa) is too weak, but a 50 mm bore (982 N push) would be physically oversized. The adjustable 130-160 mm travel window is chosen over a fixed-stroke SAI cylinder when you need variable end-stops for product changeovers or fine-tuning during machine setup. The 16 mm rod and M12x1.25 thread handle moderate side loads well, though long unsupported strokes still need an external guide.
For dimensionally interchangeable ISO 15552 replacement, match the 40 mm bore, 160 mm stroke, 30 mm adjustment, PT port, and standard mounting. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, use an SAIL or BSAI cylinder.
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 SAIJ40BX160-30 FAQ
At a standard 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. It can reach 1130 N of push force at 0.9 MPa.
The rear adjusting screw acts as a mechanical stopper that can shorten the 160 mm nominal stroke by up to 30 mm, giving a usable travel window of 130 to 160 mm. It sets the end position but does not lock the load without live air pressure.
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