Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50S
The AirTAC SAIJ160X55-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to fine-tune the end-of-travel position. With a 55 mm nominal stroke and a 50 mm adjustment code, the usable travel window spans 5 to 55 mm. This enables precise end-position tuning at commissioning or during product changeover without swapping the cylinder or adding external stops. Belonging to the 160 mm bore class, it delivers a substantial 18095 N pull force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
This variant incorporates a SUS304 stainless steel rod for superior corrosion resistance and is equipped with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It features a PT tapered G3/4 port and operates at speeds of 30-500 mm/s. The rear adjuster functions strictly as a travel stop and deceleration aid in conjunction with the variable air cushions at both ends; it does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 55 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 SAIJ160BX55-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×55 | 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 SAIJ160BX55-50S Is Used
Heavy-Duty Press Tuning
Dial in the exact 5 to 55 mm travel distance during press setup, allowing precise end-position calibration without machining custom spacers.
Variable Product Changeover
Quickly adjust the retract stop to accommodate different material thicknesses on a production line, reducing downtime between product runs.
Machine Assembly Jigs
Use the heavy 18095 N pull force to pull components together, fine-tuning the final clamping position via the rear stopper screw.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50S the Right Cylinder?
Choose this 160 mm bore adjustable-stroke cylinder when your application requires 18095 N of pull force at 0.9 MPa and on-the-fly end-position tweaking. If you need less force, stepping down to a 125 mm bore yields 11045 N of pull at 0.9 MPa, whereas moving up to a 200 mm bore provides 28274 N. The adjustable mechanism is ideal for variable end stops and machine setup, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Because the stroke is 55 mm, an external guide rail is recommended if the load exerts lateral stress.
For a true ISO 15552 replacement match, ensure you specify the 160 mm bore, 55 mm stroke, 50 mm adjustment range, PT G3/4 port, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Remember that neither the rear adjuster nor the air cushions act as a lock; for load-holding without live air, consider the SAIL or BSAI series.
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 SAIJ160BX55-50S FAQ
At an operating pressure of 0.9 MPa, this 160 mm bore cylinder generates a push force of 18095 N and a pull force of 14074 N.
The rear adjuster screw lets you trim the 55 mm nominal stroke back by up to 50 mm, creating a usable travel window of 5 to 55 mm to fine-tune the end position without changing the cylinder.
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