Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-40 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 SAIJ160AX70-40
The AirTAC SAIJ160X70-40 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, allowing you to dial back the nominal 70 mm stroke by up to 40 mm. This creates a precise 30-70 mm usable travel window, allowing exact end-position tuning during commissioning without adding external stops. Built for heavy-duty tasks, it delivers 18095 N of push force at 0.9 MPa.
This variant features an SUS420J2 stainless steel piston rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes dual sensor grooves, and the standard adjustable air cushions at both ends decelerate the heavy 160 mm piston smoothly. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-40 |
|---|---|
| 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 SAIJ160AX70-40
| 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 SAIJ160AX70-40 Is Used
Machine Setup Tuning
Dial in the exact 30-70 mm end-stop position during machine commissioning to perfect a pressing or clamping operation without machining custom spacers.
Product Size Changeover
Quickly adapt a heavy-duty conveyor or press station for a new product variant by turning the rear adjuster to shorten the stroke within the 40 mm window.
Heavy Assembly Stations
Leverage the 18095 N push force at 0.9 MPa to move substantial masses, relying on the built-in air cushions to absorb kinetic energy at the travel ends.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-40 the Right Cylinder?
Choose this 160 mm bore when a 100 mm bore (offering 1130 N pull at 0.5 MPa) lacks the necessary thrust, or step down to it if 18095 N at 0.9 MPa is excessive for your frame. The rear stroke adjuster is ideal for product changeovers on a line, letting you fine-tune the 30-70 mm travel window on the fly instead of physically swapping a fixed-stroke SAI cylinder. To hold a load safely without continuous air pressure, select a SAIL or BSAI series cylinder instead, as this adjuster is not a locking mechanism.
For an exact ISO 15552 replacement match, specify a 160 mm bore, 70 mm stroke, 40 mm adjustment range, PT port thread, and the SUS420J2 (A) rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR mounts found on some standard lines.
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 SAIJ160AX70-40 FAQ
At an operating pressure of 0.9 MPa, this 160 mm bore cylinder generates a push force of 18095 N and a pull force of 9425 N. It can deliver a maximum force of 2050 kgf at 1.0 MPa.
The rear adjuster screw physically stops the piston short of its full 70 mm travel, providing an adjustable usable stroke window of 30 to 70 mm. This allows exact end-position tuning during setup, but the adjuster functions only as a mechanical stop and does not lock the load without live air pressure.
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