Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75
The AirTAC SAIJ160X450-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. It yields 18095N of push force and 9425N of pull force at 0.9 MPa. The integrated rear adjusting screw allows you to fine-tune the travel end-position at commissioning, establishing a usable stroke window between 375 mm and 450 mm without swapping out the unit.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance, a PT tapered port thread, and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of switches. Remember that the rear adjuster acts solely as a travel stop to decelerate the piston; it does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAIJ160BX450-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SAIJ160BX450-75 Is Used
Heavy Machinery Setup
Dial in the exact end-stop for large metal forming or stamping presses, adjusting the 450 mm travel down by up to 75 mm during initial machine commissioning.
Product Size Changeovers
Quickly adapt packaging line pushers to different pallet heights by shortening the stroke window to 375 mm, eliminating the need to physically swap cylinders.
Large Assembly Fixturing
Position heavy automotive or aerospace components accurately using the 9425N pull force, fine-tuning the retract end-position to meet strict tolerances.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75 the Right Cylinder?
Selecting this 160 mm bore model is appropriate when your application requires upward of 18095N of push force at 0.9 MPa, which is a significant step above the 80 mm bore that provides 4523N. Conversely, if 450 mm of nominal travel is excessive, stepping down to a 125 mm bore yields 11045N of push force at 0.9 MPa. The adjustable 75 mm window is ideal for product-size changeovers on a line, allowing operators to dial back the stroke from 450 mm to 375 mm instantly.
When replacing an existing ISO 15552 cylinder, match the 160 mm bore, 450 mm stroke, 75 mm adjustment range, PT G3/4 port, and SUS304 rod material. Because the stroke is 450 mm, an external guide is highly recommended to manage side loads and prevent rod deflection. Note that this SAIJ utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. For load-holding without live pressure, consider the SAIL or BSAI 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 SAIJ160BX450-75 FAQ
At an operating pressure of 0.9 MPa, this 160 mm bore cylinder generates a push force of 18095N and a pull force of 9425N. It can achieve a maximum push force of 2050 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back by up to 75 mm, creating a usable stroke window of 375 to 450 mm. It is a travel stop, not a lock, and will not hold the load without continuous air pressure.
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