Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-30
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-30
The AirTAC SAIJ160X250-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window from 220 to 250 mm without adding external stops. Belonging to the 160 mm bore class, it delivers 14074 N of push force and 9425 N of pull force at 0.7 MPa. This heavy-duty actuator uses a PT tapered port thread and a robust 40 mm diameter rod.
Equipped with a SUS304 stainless steel rod, this model is well-suited for environments where rod corrosion or contamination is a concern. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. While the rear adjuster and variable air cushions control the end-of-travel deceleration, neither component will hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-30 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 250 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 SAIJ160BX250-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 SAIJ160BX250-30 Is Used
Heavy Press Tuning
Dial in the exact 220-250 mm retract position on a large press to accommodate varying material thicknesses without changing the tooling setup.
Product Changeover
Quickly adjust the end-stop during a packaging line changeover to handle different package sizes, reducing machine downtime.
Actuator Commissioning
Fine-tune the final resting position of a heavy load during initial machine setup, avoiding the need to physically swap cylinders or add spacers.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-30 the Right Cylinder?
Select this 160 mm bore actuator when an application requires substantial thrust—14074 N at 0.7 MPa—and the ability to dial in the exact retract position during commissioning or product changeover. If your process needs less force, stepping down to a 125 mm bore yields 8590 N of push force at the same pressure. Because the total travel is 250 mm, you should ensure proper external guiding to handle any side loads, as even a 40 mm rod requires support over extended movements.
When specifying an ISO 15552 replacement, match the 160 mm bore, 250 mm stroke, PT G3/4 port, and the 30 mm adjustment range. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR styles found on other variants. For applications requiring the cylinder to hold its position without continuous air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series instead of relying on the adjuster.
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 SAIJ160BX250-30 FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates 14074 N of push force and 9425 N of pull force. The maximum theoretical force at 1.0 MPa is 2050 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 250 mm stroke by up to 30 mm, creating a usable travel window of 220 to 250 mm. This stop only sets the end position and does not lock the load without live air pressure.
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