Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-40 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 SAIJ160BX70-40
The AirTAC SAIJ160X70-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 30-70 mm usable travel window from its 70 mm nominal stroke. Delivering 10053 N of push force at 0.5 MPa, it is built for heavy-duty positioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and ships with PT tapered port threads. The rear adjuster acts as a travel stop to fine-tune the retract end position during commissioning without adding external stops. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-40 |
|---|---|
| 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 SAIJ160BX70-40
| 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 SAIJ160BX70-40 Is Used
Heavy Machinery Setup
Fine-tune the 30-70 mm travel window during equipment commissioning to dial in exact heavy-load positioning without external stoppers.
Product Line Changeover
Rapidly adjust the retract end-stop by up to 40 mm when switching product sizes on a high-force production line.
Corrosive Forming
Leverage the 10053 N push force and SUS304 stainless rod for heavy stamping or bending tasks in humid or washdown environments.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-40 the Right Cylinder?
Choose this 160 mm bore when the 125 mm class (6136 N at 0.5 MPa) is insufficient for your heavy loads. An adjustable stroke is ideal for product changeovers where the exact end-of-travel position needs rapid mechanical tuning without swapping the entire cylinder. For stroke tuning, you can dial back the retract position by up to 40 mm.
This cylinder is dimensionally interchangeable per ISO 15552. It uses PT ports, a SUS304 rod, and no magnet. Note that the rear adjuster and air cushions only decelerate the load; they do not hold position without live air. For true load-holding without pressure, consider the SAIL or BSAI series. Since the stroke is under 300 mm, side-load risks are lower, but external guides are still recommended for heavy offset loads.
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 SAIJ160BX70-40 FAQ
At a 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. The maximum thrust at 1.0 MPa is 2050 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the 70 mm nominal stroke by up to 40 mm, creating a 30-70 mm usable travel window. It is a travel stop for end-position tuning, not a lock, and the cylinder requires live air to hold the load.
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