Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50 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 SAIJ160BX250-50
The AirTAC SAIJ160X250-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the end position. By dialing the external stopper at the retract end, you achieve a usable travel window of 200-250 mm without needing to swap out the entire actuator. This 160 mm bore generates a substantial 10053 N of push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
This SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing for flexible mounting of CMSE reed or DMSE electronic sensors. It supports a speed range of 30-500 mm/s and relies on adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50 |
|---|---|
| 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 SAIJ160BX250-50
| 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 SAIJ160BX250-50 Is Used
Heavy Material Positioning
Dial in the exact 200-250 mm travel window to push heavy assemblies into a machining station, allowing rapid adaptation for varying part lengths.
Commissioning End-Stop Tuning
Use the 50 mm rear adjustment screw to fine-tune the retract position during setup, avoiding the need to bolt on external stops or change cylinders.
Automated Line Changeover
Quickly modify the cylinder's effective stroke to accommodate a new product size on the production line, minimizing downtime between runs.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-50 the Right Cylinder?
Choose this 160 mm bore when 125 mm falls short at 6136 N push force, or step down if 80 mm provides adequate 2513 N thrust. An adjustable-stroke cylinder is selected over a fixed-stroke SAI when a machine requires variable end-stops for product changeovers or precise commissioning tuning. Since the 250 mm stroke is under the 300 mm threshold, side-load risks are moderate, but relying on the robust 40 mm rod and M36x2 thread helps manage deflection.
When matching this for an ISO 15552 replacement, verify the 250 mm stroke, 50 mm adjustment range, PT G3/4 ports, and the SUS304 (B) rod material. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider an AirTAC SAIL or BSAI series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR.
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 SAIJ160BX250-50 FAQ
At a 0.5 MPa operating pressure, this 160 mm bore cylinder delivers 10053 N of push force and 9425 N of pull force. At the maximum 1.0 MPa pressure, it can achieve up to 2050 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from its 250 mm nominal length down to 200 mm. It is a travel stop for end-position tuning, not a lock, and the load is only held when live air pressure is applied.
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