Airtac SAIJ160 Adjustable Cylinder SAIJ160X170-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X170-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 170mm 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
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X170-20S
The AirTAC SAIJ160X170-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel, creating a 150-170 mm usable stroke window for precise end-position tuning during commissioning. Built with a carbon steel piston rod and a PT tapered port, it delivers 10053 N of push thrust at 0.5 MPa and incorporates variable air cushions at both ends to manage high kinetic energy.
This -S variant includes a standard magnet for position sensing via AirTAC CMSE reed or DMSE electronic switches, which mount directly into the extruded aluminum barrel's dual sensor grooves. The 40 mm rod and M36x2 thread provide robust resistance to side loads, while the rear stopper allows quick machine changeovers without swapping the cylinder or adding external stops.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X170-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X170-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 170 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 SAIJ160X170-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×170 | 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 SAIJ160X170-20S Is Used
Product Changeover Stops
Quickly fine-tune the 150-170 mm travel window during product size transitions on a packaging line without physically replacing the cylinder.
Heavy Press Positioning
Leverage 10053 N of thrust at 0.5 MPa to drive heavy pressing operations while using the rear screw to dial in the exact bottom-out point.
Machine Commissioning
Set precise end positions during initial machine build using the rear stopper, avoiding the need to machine custom external spacers.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X170-20S the Right Cylinder?
Select this 160 mm bore when an application requires substantial force (10053 N push at 0.5 MPa, up to 2050 kgf at 1.0 MPa) but needs the flexibility to dial back the stroke by up to 20 mm. If your process demands less force, stepping down to a 125 mm bore yields 6136 N at 0.5 MPa, whereas heavier loads require the 200 mm bore generating 15708 N. Because the 170 mm stroke is under 300 mm, side-load stress is moderate, though an external guide remains a best practice for heavy tooling.
Choose this adjustable model over a fixed-stroke SAI when product size changes on a line require a variable end-stop. To replace this cylinder with an equivalent ISO 15552 unit, match the 160 mm bore, 170 mm stroke, -20 adjustment, PT G3/4 port, and the -S magnet. Note that the rear adjuster is a travel stop, not a lock; the cylinder will not hold a load without live air, so for failsafe holding, use an SAIL air-released lock or BSAI clamp-lock 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 SAIJ160 Adjustable Cylinder SAIJ160X170-20S FAQ
The rear adjuster acts as a mechanical stop that shortens the cylinder's travel. For this model, the 170 mm nominal stroke can be dialed back by up to 20 mm, giving an effective usable travel window of 150-170 mm. The adjuster only sets the end position; it does not lock the load without live air pressure.
At a 0.5 MPa operating pressure, the SAIJ160X170-20-S provides 10053 N of push thrust and 9425 N of pull thrust. At its maximum rated pressure of 1.0 MPa, it can deliver up to 2050 kgf of push force.
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