Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50S 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 SAIJ160BX250-50S
The AirTAC SAIJ160X250-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window between 200 and 250 mm without adding external stops. It delivers massive thrust, pushing 18095 N at 0.9 MPa, making it ideal for heavy-duty forming and clamping. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and ships with a PT tapered port. The integrated rear adjuster acts purely as a mechanical stop to set the retract end-position; it does not hold the load without live air pressure. For position-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50S |
|---|---|
| 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 SAIJ160BX250-50S
| 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 SAIJ160BX250-50S Is Used
Heavy-Duty Forming Presses
Dial in the exact 200 to 250 mm forming depth during setup, allowing quick changes for different material thicknesses without physically swapping cylinders.
Product Line Changeover
Use the 50 mm rear adjustment range to rapidly reposition the retract end-stop when transitioning a packaging line to a new carton size.
Large Assembly Jigs
Leverage the 18095 N of push force at 0.9 MPa to seat large automotive components, fine-tuning the travel end to accommodate varying part tolerances.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50S the Right Cylinder?
Select this 160 mm bore cylinder when your application requires substantial force—stepping down to a 125 mm bore yields 11045 N at 0.9 MPa, while moving up to a 200 mm bore provides 28274 N. The adjustable stroke is highly beneficial during machine commissioning or product changeover, allowing you to dial in the exact end-stop on the fly rather than swapping out a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 250 mm stroke, 50 mm adjustment range, PT port thread, and SUS304 rod material. Because the total stroke is 250 mm, ensure external guiding is used to prevent excessive side-loading on the 40 mm rod. This SAIJ model supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The included magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
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 SAIJ160BX250-50S FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides 18095 N of push force and 14074 N at 0.7 MPa. It can deliver a maximum of 2050 kgf at 1.0 MPa.
The rear mechanical stopper lets you shorten the nominal 250 mm stroke by up to 50 mm, creating a usable travel window of 200 to 250 mm. This stopper decelerates the end position but does not lock or hold the load without continuous air pressure.
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Standard models usually ship in 3-4 days.
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