Airtac SAIJ160 Adjustable Cylinder SAIJ160BX290-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX290-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 290mm 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
- Stroke290 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX290-50
The AirTAC SAIJ160X290-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 290 mm nominal stroke by up to 50 mm, creating a 240-290 mm usable window. This on-machine tuning capability eliminates the need to swap cylinders or bolt on external stops during product changeovers. Built to deliver substantial thrust, it provides 14074 N of pull force at 0.9 MPa.
This heavy-duty unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic solid-state switches. Operating at speeds of 30-500 mm/s, it utilizes variable air cushions at both ends to decelerate the massive 2050 kgf maximum load smoothly.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX290-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX290-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 290 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 SAIJ160BX290-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×290 | 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 SAIJ160BX290-50 Is Used
Heavy Assembly Pressing
Dial in the exact 240-290 mm travel needed for seating large bearings or pressing heavy components, adapting to slight material thickness variations on the fly.
Product Changeover
Quickly adjust the end-stop position by up to 50 mm when switching machinery between different large-format product sizes without changing the cylinder.
Machinery Setup
Fine-tune the retract end-position during initial commissioning to achieve precise alignment, preventing costly cylinder replacements or external stop fabrication.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX290-50 the Right Cylinder?
Choose this 160 mm bore when an 80 mm cylinder's 4523 N push force at 0.9 MPa is insufficient for moving heavy assemblies. The 50 mm adjustment range is ideal for dialing in exact end positions during machine commissioning without replacing the actuator. If your process requires the load to be held mechanically without continuous live air pressure, a plain SAIJ cannot perform this function—the rear adjuster acts only as a travel stop, not a lock. For fail-safe holding, select the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 290 mm stroke, 50 mm adjustment range, PT port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2—omitting FB, CA, CB, CR). Because the 290 mm stroke combined with the heavy 40 mm rod presents a lever arm, long unsupported strokes still require an external guide to prevent excessive side-loading and premature seal wear.
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 SAIJ160BX290-50 FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder generates 18095 N of push force and 9425 N of pull force. It achieves a maximum force of 2050 kgf at 1.0 MPa.
The rear external adjusting screw acts as a mechanical stopper, allowing you to shorten the 290 mm nominal stroke by up to 50 mm, resulting in a 240-290 mm usable travel window. It stops the piston but does not lock the load without live air pressure.
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