Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75 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 SAIJ160BX250-75
The AirTAC SAIJ160X250-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that creates a usable travel window of 175 to 250 mm. Delivering 18095 N of push force at 0.9 MPa, it handles heavy-duty positioning without requiring cylinder swaps during product changeover. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads (G3/8). The rear stopper mechanism allows fine end-position tuning at commissioning, while the variable air cushions at both ends manage deceleration across the 30 to 500 mm/s speed range.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75 |
|---|---|
| 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 SAIJ160BX250-75
| 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 SAIJ160BX250-75 Is Used
Format Changeovers
Dial in the exact end-stop between 175 and 250 mm on packaging lines without replacing the cylinder or adding external mechanical stops.
Machine Commissioning
Fine-tune the retract position during setup to perfect timing and avoid hard mechanical crashes on heavy actuators.
Variable Positioning
Adapt the travel distance on the fly for production lines running mixed product sizes that require different stroke lengths.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75 the Right Cylinder?
Choose this 160 mm bore when 10053 N of thrust at 0.5 MPa is insufficient, or step down to the 125 mm bore if 6136 N is enough for your payload. The 75 mm adjustment range is ideal for machinery requiring variable end-stops between 175 and 250 mm, eliminating the need to physically swap a fixed-stroke SAI cylinder during format changes. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, neither will hold a load without live air pressure. For dead-load holding requirements, consider the SAIL pneumatic lock or BSAI clamp-lock series. Although the 40 mm rod and M36x2 thread handle high side loads well, always use an external guide for heavy payloads.
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 SAIJ160BX250-75 FAQ
At 0.9 MPa it provides 18095 N of push force and 9425 N of pull force. The operational speed range is 30 to 500 mm/s.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 250 mm down to 175 mm. It sets the end position but does not lock the load without live air pressure.
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