Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-10
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-10 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 SAIJ160BX425-10
The AirTAC SAIJ160X425-10 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that trims the effective travel. With a 425 mm nominal stroke and a 10 mm adjustment range, you can dial in the retract end-position anywhere within a 415-425 mm window during commissioning. This bore size generates a substantial 14074 N of push force at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This specific configuration incorporates a SUS304 stainless steel piston rod for superior corrosion resistance, utilizes PT tapered port threads, and operates without a magnet. The extruded aluminum barrel includes sensor grooves on both sides should you later need to add position detection. It relies on variable air cushions at both ends to decelerate the large moving mass smoothly.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-10 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-10 |
|---|---|
| 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 SAIJ160BX425-10
| 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 SAIJ160BX425-10 Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a large press over a 415-425 mm window to accommodate material thickness variations without changing tooling.
Long-Stroke Conveying
Adjusts the retract stop on heavy product pushers during line changeovers, ensuring precise placement without remounting the entire actuator.
Large Assembly Indexing
Provides a customizable end-position for heavy component indexing, allowing 10 mm of mechanical adjustment to perfect the assembly alignment.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX425-10 the Right Cylinder?
Choose this 160 mm bore when a 125 mm cylinder (providing 8590 N push at 0.7 MPa) lacks the necessary thrust, but a 200 mm bore would be physically excessive. The adjustable stroke is ideal for fine-tuning the end stop on long-stroke machinery without adding external bumpers or swapping the cylinder for a fixed-stroke SAI variant. Because the nominal stroke is 425 mm, an external guide is recommended to support the rod and prevent excessive side-loading on the front cap seal.
When matching an ISO 15552 replacement, verify the 160 mm bore, 425 mm stroke, 10 mm adjustment, PT G3/4 ports, and the absence of a magnet. Remember that the rear adjuster is a travel stop, not a locking device; it cannot hold a load without continuous air pressure. For fail-safe load holding, consider an external pilot-operated check valve or the SAIL lock series. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160BX425-10 FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides 14074 N of push force and 9425 N of pull force. It can reach a maximum push force of 18095 N at 0.9 MPa.
A rear-mounted adjusting screw acts as a mechanical stopper, allowing you to shorten the 425 mm nominal stroke by up to 10 mm. This creates a 415-425 mm usable travel window for fine-tuning the end position at commissioning. The adjuster only sets the travel end and does not lock the load without live air pressure.
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