Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 125mm 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
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30S
The AirTAC SAIJ160X125-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers substantial thrust, generating 14074N of push force at 0.7 MPa, making it suitable for heavy-duty operations. By integrating a magnet, this model directly supports AirTAC CMSE reed and DMSE electronic sensors for precise end-position detection.
The integrated rear adjusting screw allows you to fine-tune the effective travel, creating a usable stroke window of 95-125 mm without swapping out the cylinder. This extruded aluminum profile cylinder features a robust 40 mm carbon steel rod and a PT tapered G3/4 port. It utilizes adjustable air cushions at both ends to manage kinetic energy, though the adjuster functions strictly as a travel stop and does not hold the load without continuous live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 125 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 SAIJ160X125-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 SAIJ160X125-30S Is Used
Heavy Machinery Setup
Dial in the exact 95 to 125 mm end-stop during heavy press commissioning to accommodate material thickness variations without replacing hardware.
Product Size Changeovers
Quickly adapt automated welding clamps to new part lengths by turning the rear adjuster, trimming the stroke precisely by up to 30 mm.
Variable End Positioning
Fine-tune the retraction point on large material handling doors to ensure perfect alignment with downstream conveyors.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-30S the Right Cylinder?
Choose this 160 mm bore when an 80 mm bore (providing 3518N push at 0.7 MPa) lacks the power for high-inertia loads, but a 200 mm bore would be excessive. The 30 mm adjustment window is ideal for production lines needing rapid product changeovers, allowing operators to dial in the exact end position rather than machining custom external stops. If your application requires the load to remain held during a complete loss of air pressure, a standard SAIJ adjuster will not suffice; you must pivot to an AirTAC SAIL pneumatic lock or an external rod lock.
To achieve a true ISO 15552 replacement match, verify the 160 mm bore, 125 mm nominal stroke, 30 mm adjustment range, PT port thread, and the -S magnet requirement. Because the nominal stroke is 125 mm, side-loading is minimal, but the heavy 40 mm rod thread still necessitates proper mounting alignment to prevent premature seal wear. Supported mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160X125-30S FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates a push force of 14074N and a pull force of 9425N. At the maximum rated pressure of 1.0 MPa, it achieves a peak push force of 18095N.
The rear adjusting screw acts as a mechanical stop that shortens the nominal 125 mm stroke, providing an adjustable travel window of 95 to 125 mm. It decelerates the piston alongside the air cushion but does not lock or hold the load without live air pressure.
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