Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-40 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 SAIJ160BX325-40
The AirTAC SAIJ160X325-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 325 mm travel by up to 40 mm for a precise 285-325 mm usable window. Built with a robust 40 mm SUS304 stainless steel rod and a G3/4 port, it delivers massive thrust up to 18095 N at 0.9 MPa, making it ideal for heavy-duty press operations. The extruded aluminum barrel features dual sensor grooves, though this specific SKU omits the magnet.
Because the stroke extends past 300 mm, the large 40 mm rod diameter is critical for managing side loads, though an external guide remains essential for unsupported lengths. The rear screw acts purely as a travel stop for commissioning flexibility and works in tandem with adjustable air cushions at both ends to decelerate the massive payload smoothly.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-40 |
|---|---|
| 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 SAIJ160BX325-40
| 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 SAIJ160BX325-40 Is Used
Heavy Press Tuning
Dial in the exact 285-325 mm clamping depth on large metal forming presses during setup, absorbing heavy shocks with the 50 mm air cushion.
Product Size Changeover
Quickly adapt automated heavy machinery to new pallet widths by turning the rear stopper, avoiding the need to physically swap out large cylinders.
Long-Stroke Material Handling
Move substantial loads across a 325 mm span, relying on the 40 mm SUS304 rod to resist deflection while benefiting from adjustable end positioning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX325-40 the Right Cylinder?
Choose this 160 mm bore when an 80 mm cylinder (yielding 4523 N push at 0.5 MPa) lacks the force for heavy clamping, but a 200 mm bore would be physically oversized. The -40 adjustment code is selected over a fixed SAI cylinder when a machine requires fine end-position tuning during product changeovers without swapping hardware. You must specify the PT port thread, SUS304 (code B) rod material, and the absence of a magnet (-S) when matching this to an ISO 15552 footprint.
For any 325 mm stroke, always support the load with an external guide to prevent excessive rod bending. Remember that the rear adjuster is a stop, not a lock; this cylinder cannot hold position without live air, so integrate a SAIL or BSAI cylinder if true load-holding is required.
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 SAIJ160BX325-40 FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder generates a push force of 18095 N and a pull force of 14074 N. It achieves a maximum push force of 10053 N at 0.5 MPa.
The rear adjuster screw allows you to shorten the effective travel from the nominal 325 mm down to a minimum of 285 mm. This provides a 40 mm tuning window to set the exact retract end-position during commissioning without needing external stops.
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