Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-30S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-30S
The AirTAC SAIJ160X425-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, allowing you to dial back the nominal 425 mm stroke by up to 30 mm. This creates a precise 395-425 mm usable travel window, enabling exact end-position tuning at commissioning without swapping hardware. Belonging to the 160 mm bore class, it delivers substantial thrust, generating 14074 N of push force at 0.7 MPa and up to 18095 N at 0.9 MPa.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and operates at speeds of 30-500 mm/s. It includes a magnet for position sensing, working seamlessly with AirTAC CMSE reed and DMSE electronic switches housed in the dual-side sensor grooves. The rear stopper solely trims the travel end and must not be confused with a locking mechanism, as the cylinder cannot hold loads without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-30S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 425 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 SAIJ160BX425-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×425 | 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 SAIJ160BX425-30S Is Used
Heavy-Duty Forming
Dial in the exact 395-425 mm travel window during press setup to accommodate different material thicknesses without changing the cylinder.
Product Changeover
Adjust the rear stopper on the fly to handle varying pallet sizes on a high-thrust transfer line, ensuring precise end-positioning.
Assembly Station Tuning
Fine-tune the end-of-stroke position during machine commissioning to prevent over-travel and crush damage on large components.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-30S the Right Cylinder?
Select this 160 mm bore cylinder when an application demands high thrust alongside variable end-stops, such as accommodating product-size changes on a heavy-duty line. If you need less force, stepping down to a 125 mm bore yields 8590 N of push force at 0.7 MPa. Because the 425 mm stroke is substantial, the 40 mm diameter SUS304 rod and M36x2 thread provide robust support, but an external guide is still recommended to manage side loads over this long travel distance.
An adjustable stroke is favored over a fixed SAI cylinder when you need on-the-fly commissioning fine-tuning rather than bolting on external stops. To match this ISO 15552 dimensionally interchangeable cylinder, specify the 425 mm stroke, 30 mm adjustment, PT tapered port thread, and your desired mounting style from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or TCM2. For applications requiring true load-holding without live air, consider the SAIL or BSAI variants instead.
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 SAIJ160BX425-30S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the 425 mm nominal stroke by up to 30 mm, providing a usable travel window of 395-425 mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
At 0.7 MPa operating pressure, it provides 14074 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
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