Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 325mm 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
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50
The AirTAC SAIJ160X325-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 14074N of push force at 0.7 MPa. Because this specific SKU carries a 50mm adjustment code, you can dial the 325mm nominal stroke back to anywhere within a 275-325mm usable travel window during commissioning. This negates the need to physically swap out the entire actuator when fine-tuning end positions.
This large-bore unit features a robust 40mm piston rod with an M36x2 thread and a SUS304 stainless steel rod material for superior corrosion resistance. It operates at 30-500mm/s and includes variable air cushions at both ends to decelerate heavy loads. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing for straightforward position feedback if a magnet is specified later.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 325 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 SAIJ160BX325-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×325 | 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 SAIJ160BX325-50 Is Used
Heavy Press Tuning
Dial in the exact 275-325mm end-stop position for heavy pressing operations without machining new spacer blocks.
Product Changeovers
Quickly adjust the retract distance on a packaging line when switching to different pallet or product heights.
Large Assembly Fixtures
Securely move heavy structural components into place, relying on the 40mm SUS304 rod for robust, corrosion-free operation.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-50 the Right Cylinder?
Select this 160mm bore actuator when an application demands heavy thrust that a 125mm cylinder cannot provide, yet falls short of requiring the 21991N push force (at 0.7MPa) of a 200mm bore model. The adjustable-stroke mechanism is chosen over a fixed SAI cylinder when a production line requires frequent product-size changeovers, allowing operators to reset the retract end-position rapidly without installing external stops. To match this exact configuration for an ISO 15552 replacement, specify the 325mm stroke, 50mm adjustment range, PT tapered port thread, and the SUS304 (B) rod material.
Because this model features a 325mm stroke, the extended 40mm rod is subject to increased bending moments under side loads; an external guide rail should be incorporated to prevent premature seal wear. Furthermore, the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure. For genuine load-holding requirements without continuous air supply, consider an AirTAC SAIL or BSAI series cylinder 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 SAIJ160BX325-50 FAQ
At an operating pressure of 0.7 MPa, this 160mm bore cylinder provides a push force of 14074N and a pull force of 9425N. At 0.9 MPa, the push force increases to 18095N.
The rear adjusting screw acts as an external stopper that lets you mechanically shorten the 325mm nominal stroke by up to 50mm, providing a usable travel window of 275-325mm. It only sets the end position and does not lock the load without live air pressure.
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