Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 85mm 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
- Stroke85 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50
The AirTAC SAIJ160X85-50 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial 10053N push force at 0.5 MPa. It features an extruded aluminum barrel with sensor grooves on both sides and a robust 40mm piston rod. This model utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance, operating at speeds between 30 and 500 mm/s.
Equipped with a 50mm rear stroke adjuster, this cylinder provides a usable travel window of 35 to 85mm, allowing precise end-position tuning during commissioning without swapping hardware. The PT tapered port threads ensure a tight pneumatic seal. While the rear adjuster and variable air cushions decelerate the load at travel ends, they act as stops and do not hold the load without live air; for position holding, consider the SAIL or BSAI series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 85 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 SAIJ160AX85-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×85 | 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 SAIJ160AX85-50 Is Used
Heavy Press Tuning
Fine-tune the 35-85mm travel end-stop during heavy press commissioning to achieve exact contact force without adding external mechanical stops.
Line Changeover
Quickly adapt forming stations for different product sizes by dialing back the stroke up to 50mm, minimizing machine downtime between production runs.
Robust Positioning
Leverage the 40mm SUS420J2 stainless rod to push heavy workpieces into alignment, benefiting from high side-load capacity and corrosion resistance.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50 the Right Cylinder?
Selecting this 160mm bore cylinder makes sense when your application requires the 10053N push force at 0.5 MPa and on-the-fly stroke trimming within a 35-85mm window. If your setup needs less force, stepping down to a 125mm bore yields 6136N; if you need more power, a 200mm bore provides 15708N. The adjustable stroke is ideal for product-size changeovers on a line, whereas a fixed-stroke SAI cylinder is better for dedicated single-purpose tasks.
For an exact ISO 15552 replacement, match the 160mm bore, 85mm nominal stroke, 50mm adjustment, PT port threads, and SUS420J2 rod material. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, CR). Because the 40mm rod handles high side loads, ensure proper external guiding for optimal performance.
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 SAIJ160AX85-50 FAQ
At 0.5 MPa operating pressure, this 160mm bore cylinder provides a push force of 10053N and a pull force of 9425N. At the maximum 1.0 MPa pressure, it achieves a push force of 18095N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 85mm down to 35mm. This allows precise end-position tuning during setup, though it does not lock the load without continuous air pressure.
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