Airtac SAIJ160 Adjustable Cylinder SAIJ160X135-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X135-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 135mm 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
- Stroke135 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X135-20S
The AirTAC SAIJ160X135-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers substantial thrust, providing 14074N push force at 0.7 MPa, making it suited for heavy-duty operations. The integrated -S magnet enables position sensing via AirTAC CMSE reed and DMSE electronic solid-state switches fitted into the dual-side sensor grooves. A standard PT tapered port thread and a robust 40mm carbon steel rod ensure durable performance.
This model features a 135mm nominal stroke that can be fine-tuned down by up to 20mm, creating a usable travel window of 115-135mm. This built-in adjustability allows operators to dial in exact end positions during commissioning without adding external stops or swapping the cylinder. The rear screw functions purely as a travel stop to set the retract endpoint, not as a lock, meaning live air is required to hold the load.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X135-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X135-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 135 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 SAIJ160X135-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×135 | 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 SAIJ160X135-20S Is Used
Product Changeover
Dial in the 115-135mm retract stop during line changeovers to accommodate different product lengths without replacing the cylinder.
Heavy Clamping
Leverage the 14074N push force at 0.7 MPa to secure heavy workpieces, using the adjuster to set precise clamping depth.
Commissioning Setup
Fine-tune the end-of-stroke position during initial machine commissioning to perfect timing without adding external mechanical stops.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X135-20S the Right Cylinder?
Select this 160mm bore cylinder when an application demands high force, such as the 10053N pull at 0.5 MPa, but requires precise end-position tuning for varying product sizes. If your setup needs less force, stepping down to a 125mm bore yields 6136N push at 0.5 MPa, whereas moving up to a 200mm bore provides 15708N. The adjustable 115-135mm window makes this SAIJ model preferable over a fixed-stroke SAI cylinder for machines that undergo frequent product changeovers. For load-holding without continuous air pressure, use an external pilot-operated check valve or select the SAIL or BSAI series instead, as the SAIJ adjuster does not lock the load.
When integrating this cylinder, note the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR mounts. Dimensionally interchangeable per ISO 15552, it utilizes a standard PT G3/4 port. Although the 135mm stroke is below the 300mm threshold where external guides become critical, the 40mm rod thread handles side loads well, yet unsupported loads should still be guided externally.
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 SAIJ160X135-20S FAQ
At 0.7 MPa, this 160mm bore cylinder provides a push force of 14074N and a pull force of 9425N. It can deliver up to 10053N push force at 0.5 MPa.
The rear adjuster screw allows you to shorten the 135mm nominal stroke by up to 20mm, giving an effective travel window of 115-135mm. This stopper sets the end position but does not lock the load without live air pressure.
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