Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-50
The AirTAC SAIJ160X425-50 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that trims the effective stroke by up to 50 mm. This yields a usable travel window of 375 to 425 mm, allowing precise end-position tuning at commissioning without adding external stoppers. In the 160 mm bore class, it generates 10053 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel integrates sensor grooves on both sides for flexible switch mounting. It operates at speeds of 30-500 mm/s and utilizes a 50 mm air cushion at both ends to decelerate high kinetic energy loads smoothly.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 425 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 SAIJ160BX425-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×425 | 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 SAIJ160BX425-50 Is Used
Heavy-Duty Press Tuning
Dial in the exact 375-425 mm end-of-stroke position during machine setup to accommodate varying material thicknesses without repositioning the entire fixture.
Product Size Changeover
Rapidly adjust the retract stop on automated assembly lines when switching between different product dimensions, minimizing downtime and mechanical retooling.
Guided Heavy Load Positioning
Leverage the 10053 N pull force to shift heavy pallets or industrial components, relying on external guides to manage side-load on the 425 mm stroke.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-50 the Right Cylinder?
Selecting this 160 mm bore over a 125 mm neighbor provides a significant force jump, increasing pull thrust from 5734 N to 10053 N at 0.5 MPa. The 50 mm adjustment range is ideal for production lines requiring variable end-stops during product size changeovers, whereas a fixed-stroke SAI would require physical cylinder replacement to alter the travel. When matching ISO 15552 mounting interfaces, account for the PT port thread, SUS304 rod material, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) which omits FB, CA, CB, and CR brackets.
Because the 425 mm stroke exceeds 300 mm, the M36x2 rod thread and 40 mm rod diameter must be evaluated for side-load conditions; long unsupported strokes require an external guide to prevent binding. Note that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. For true fail-safe load holding, an external rod lock or an AirTAC SAIL/BSAI cylinder is required.
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 SAIJ160BX425-50 FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of pull force and 14074 N of push force. It can achieve up to 18095 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the nominal 425 mm stroke by up to 50 mm, providing an adjustable travel window of 375 to 425 mm. It functions as a travel stop and does not lock the load without live air pressure.
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