Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX125-20 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 SAIJ160BX125-20
The AirTAC SAIJ160X125-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 105 to 125 mm, allowing you to trim the nominal 125 mm stroke by up to 20 mm during commissioning. Delivering 10053 N of pull force at 0.5 MPa, it handles heavy loads without needing external stops.
This model uses a SUS304 stainless steel rod for corrosion resistance and features a PT tapered G3/4 port. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjustment screw functions purely as a travel stop to dial in end positions, not as a lock to hold loads without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20 |
|---|---|
| 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 SAIJ160BX125-20
| 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 SAIJ160BX125-20 Is Used
Press Stroke Calibration
Fine-tune the exact end-of-stroke contact point on a forming press, trimming up to 20 mm to accommodate varying material thicknesses without swapping cylinders.
Product Line Changeover
Adjust the retract stop during rapid product size changes on a heavy-duty assembly line, ensuring precise positioning without mechanical retooling.
Clamping Force Setup
Dial in the exact travel distance for a high-force clamping fixture, using the rear stopper to set a 105 to 125 mm window for optimal grip.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX125-20 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end stops or product changeovers, offering finer control than a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a brake.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 125 mm stroke, 20 mm adjustment range, PT G3/4 port, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface. Because the 125 mm stroke is relatively short for this large bore, side-load concerns are minimal, but external guidance is still recommended for heavy lateral forces.
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 SAIJ160BX125-20 FAQ
It reaches a maximum thrust of 2050 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 125 mm down to 105 mm. It sets the travel end and deceleration point, but it does not lock or hold the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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