Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-40
The AirTAC SAIJ160X275-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 275 mm travel by up to 40 mm. This yields a precise 235-275 mm usable window for fine-tuning the retract end position during commissioning without swapping hardware. Built with a SUS304 stainless steel rod, it handles heavy loads with a push force of 14074 N at 0.7 MPa.
This model features a G3/4 PT tapered port and a robust 40 mm rod thread that handles high side loads, though the 275 mm stroke still requires an external guide to prevent rod bending. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, position sensing requires adding an external rod lock or pilot-operated check valve for load holding.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 275 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 SAIJ160BX275-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×275 | 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 SAIJ160BX275-40 Is Used
Heavy Press Tuning
Fine-tune the 235-275 mm retract window on heavy pressing operations to dial in exact crimp depths without machining new stopper blocks.
Product Changeover
Quickly adjust the end position on a packaging line when switching to different box sizes, using the 40 mm trim range to adapt the stroke on the fly.
Machine Setup
Leverage the 14074 N push force and adjustable end-stop during initial machine commissioning to find the optimal mechanical position safely.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-40 the Right Cylinder?
Select this 160 mm bore cylinder when an application requires substantial force, stepping up from a 125 mm bore that provides 8590 N push at 0.7 MPa, or stepping down from a 200 mm bore offering 21991 N. The adjustable stroke is ideal for variable end-stops and product-size changeovers, whereas a fixed SAI cylinder locks you into one exact dimension. To match this ISO 15552 replacement exactly, specify the 275 mm stroke, 40 mm adjustment, PT G3/4 port, SUS304 rod, and no magnet.
Because the 275 mm stroke exceeds 300 mm is false here, but any long stroke demands attention to side-load; always use an external guide to support the load. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air. For true pneumatic locking without pressure, consider the SAIL or BSAI series 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 SAIJ160BX275-40 FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. At 0.5 MPa, the push force is 10053 N.
The rear adjuster acts as an external stopper that lets you shorten the 275 mm nominal stroke by up to 40 mm, creating a 235-275 mm travel window. It sets the end position but does not lock the load without live air pressure.
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