Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-50
The AirTAC SAIJ160X70-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 20 to 70 mm without adding external stops. It delivers a robust 9425 N pull force at 0.5 MPa, making it ideal for heavy-duty positioning tasks.
This variant is configured with a SUS420J2 stainless steel rod for enhanced durability against moisture and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjustment screw functions purely as a travel stop to decelerate the load, not as a lock to hold it without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 70 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 SAIJ160AX70-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×70 | 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 SAIJ160AX70-50 Is Used
Heavy Press Tuning
Dial in the exact 20 to 70 mm travel window during heavy press commissioning to achieve perfect end-position timing without swapping cylinders.
Product Changeover
Quickly adjust the retract stop on the fly to handle slightly different product sizes on the same line, maximizing production flexibility.
Machine Setup
Use the rear stopper to fine-tune the end-of-stroke deceleration point during initial machine assembly, avoiding the need for external mechanical stops.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-50 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI when your machine setup requires variable end-stops or commissioning fine-tuning to accommodate product changeovers. If you need to step down force, the 125 bore provides 5734 N of pull at 0.5 MPa, whereas this 160 bore handles massive loads up to 9425 N.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 70 mm nominal stroke, 50 mm adjustment range, PT G3/4 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the nominal stroke is under 300 mm, side-load stress is minimized, but the 40 mm rod diameter still handles significant lateral forces better than smaller bores.
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 SAIJ160AX70-50 FAQ
At an operating pressure of 0.5 MPa, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. At the maximum 1.0 MPa, it can deliver up to 2050 kgf.
The rear adjuster screw allows you to shorten the 70 mm nominal stroke by up to 50 mm, creating a usable travel window of 20 to 70 mm. The adjuster acts as a stop to set the end position and must not be used as a load-holding lock.
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