Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S
The AirTAC SAIJ160X800-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 780 to 800 mm, allowing you to dial back the nominal 800 mm stroke by up to 20 mm during commissioning without adding external stops. Built with a SUS420J2 stainless steel rod, it generates 14074 N of push force at 0.7 MPa.
This large-bore pneumatic actuator features a PT tapered port and an extruded aluminum barrel with sensor grooves on both sides. The integrated -S magnet supports position detection via AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop to fine-tune the end position, not as a lock, meaning live air is required to hold the load.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×800 | 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 SAIJ160 Adjustable Cylinder SAIJ160AX800-20S Is Used
Press Fit Tuning
Dial in the exact 780 to 800 mm insertion depth for heavy press-fit operations during machine setup, accommodating material variances without swapping actuators.
Product Changeovers
Quickly adjust the end-stop position on packaging lines when switching between different product sizes, using the 20 mm trim range to adapt the stroke.
Heavy Material Eject
Leverage the 14074 N push force at 0.7 MPa to eject heavy metal parts from a press, fine-tuning the ejection reach to clear tooling obstructions.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX800-20S the Right Cylinder?
Choose this 160 mm bore when your application requires substantial thrust, such as the 14074 N push force at 0.7 MPa, but you need precise end-position tuning for product changeovers. If your setup only needs the lower 10053 N push force at 0.5 MPa, a 160 mm bore remains appropriate, but stepping down to a 125 mm bore (6136 N at 0.5 MPa) saves space if less force is acceptable. Unlike a fixed-stroke SAI cylinder, this SAIJ model lets you shorten the effective stroke by up to 20 mm on the fly.
For an ISO 15552 replacement, match the 160 mm bore, 800 mm stroke, 20 mm adjustment, PT G3/4 ports, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, CR). Because the stroke is 800 mm, the long unsupported rod is highly susceptible to side-loading; an external guide rail is strongly recommended to prevent premature seal wear. Note that this cylinder does not hold position without live air—for load-holding, consider an AirTAC SAIL or BSAI series.
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 SAIJ160 Adjustable Cylinder SAIJ160AX800-20S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 20 mm. This provides a usable travel window of 780 to 800 mm, allowing fine-tuning of the end position during commissioning without replacing the cylinder.
At an operating pressure of 0.7 MPa, the SAIJ160X800-20-S generates 14074 N of push force and 9425 N of pull force. The maximum theoretical force is 2050 kgf at 1.0 MPa.
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