Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX125-40 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40
It features a SUS304 stainless steel rod and PT tapered ports. The integrated adjuster allows you to trim the 125mm nominal stroke back by up to 40mm, creating an exact 85-125mm usable travel window for precise positioning.
This heavy-duty actuator utilizes an extruded aluminum barrel with sensor grooves on both sides, deliberately omitting tie-rod construction. The rear screw acts purely as a travel stop for end-position tuning during commissioning; it does not hold the load without live air. For position holding without pneumatic pressure, an external rod lock or a related SAIL locking cylinder is required.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40 |
|---|---|
| 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40
| 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 SAIJ160BX125-40 Is Used
Heavy Product Changeover
Quickly reconfigure the 85-125mm retract stop on packaging lines when switching between different large product sizes without replacing the actuator.
Commissioning Fine-Tuning
Dial in the exact end-of-stroke position during machine setup to prevent crushing heavy components, using the rear stopper instead of external hard stops.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-40 the Right Cylinder?
The adjustable 85-125mm travel window is ideal for product-size changeovers on a line, allowing you to dial in the exact retract stop without swapping the cylinder or adding external shims. Because the 125mm stroke is under the 300mm threshold, side-load risks are moderate, but the robust 40mm rod and M36x2 thread help manage higher bending moments.
When specifying a replacement, verify the 160mm bore, 125mm stroke, 40mm adjustment range, PT port thread, and the absence of a magnet. Mounting is limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The operating speed for this bore is 30-500mm/s.
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 SAIJ160BX125-40 FAQ
At 0.7MPa, the push force increases to 14074N.
The rear adjuster screw allows you to shorten the 125mm nominal stroke by up to 40mm, providing a usable travel window of 85-125mm. The screw functions as a mechanical stop to fine-tune the retract position and is not a locking mechanism.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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