Airtac SAIJ160 Adjustable Cylinder SAIJ160BX75-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX75-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX75-20S
The AirTAC SAIJ160X75-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 55 to 75 mm, allowing you to dial back the nominal 75 mm stroke by up to 20 mm during machine commissioning. Delivering 10053 N of push force at 0.5 MPa, it is built for heavy-duty positioning tasks.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the rear adjuster functions purely as a travel stop, meaning the cylinder will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX75-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX75-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 75 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 SAIJ160BX75-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×75 | 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 SAIJ160BX75-20S Is Used
Press Tonnage Tuning
Fine-tune the exact end-of-stroke pressing position on heavy assembly lines to accommodate varying material thicknesses without changing hardware.
Product Changeover Stops
Quickly adjust the physical reject stroke length on a conveyor when switching between different package sizes or product profiles.
Fixture Actuation Setup
Dial in the precise clamping travel during initial machine commissioning to prevent over-travel and crush damage on delicate workpieces.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX75-20S the Right Cylinder?
Choose this 160 mm bore when 14053 N of thrust at 0.7 MPa is required, or step down to the 125 mm bore (6136 N at 0.5 MPa) if the load is lighter. An adjustable-stroke model is preferred over a fixed SAI cylinder when you need variable end-stops for product changeovers without physically swapping the barrel. To match this ISO 15552 replacement exactly, specify a 160 mm bore, 75 mm stroke, 20 mm adjustment, PT tapered ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and the -S magnet option.
Because the rear screw only sets the travel end and relies on the air cushion for deceleration, it cannot act as a brake. For true load-holding without live pressure, consider the SAIL or BSAI series. The 40 mm rod thread and robust 40 mm rod handle high side loads well, though any application approaching the 1500 mm maximum stroke would still need an external guide.
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 SAIJ160BX75-20S FAQ
The rear external adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 20 mm. This provides a usable travel window of 55 to 75 mm, which is set at commissioning without needing external stops.
At a standard 0.5 MPa operating pressure, it provides 10053 N of push force and 9425 N of pull force. If pressure is increased to 0.9 MPa, the push force reaches 18095 N.
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