Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40S
The AirTAC SAIJ160X550-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel to a precise 510-550 mm window. Delivering massive thrust, it generates 14074 N of push force and 9425 N of pull force at 0.7 MPa. The integrated magnet supports position sensing via AirTAC CMSE reed and DMSE electronic switches.
This specific SKU features a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and utilizes PT tapered port threads with a G3/4 connection. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the rear adjuster acts purely as a travel stop, it cannot hold a load without live air pressure; for pneumatic locking, consider the SAIL or BSAI series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 550 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 SAIJ160AX550-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×550 | 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 SAIJ160AX550-40S Is Used
Heavy Press Tuning
Dial in the exact 510-550 mm end-of-stroke position during heavy press commissioning to accommodate varying material thicknesses without external stopper blocks.
Product Changeover
Quickly adjust the rear stopper by up to 40 mm on a packaging line to handle different pallet or product sizes on the fly.
Large Assembly Setup
Leverage 14074 N of thrust at 0.7 MPa to seat heavy automotive components, using the fine-tune adjuster to perfect the mating depth.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-40S the Right Cylinder?
Choose this 160 mm bore when a 125 mm cylinder (providing 8590 N push at 0.5 MPa) lacks the necessary power, but before stepping up to a massive 200 mm unit. The 40 mm adjustment range is ideal for dialing in exact end positions during machine commissioning or product changeovers without swapping hardware. If your application requires true load-holding without continuous air, a standard SAIJ is insufficient and you should pivot to the SAIL air-released lock or BSAI clamp-lock.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 550 mm nominal stroke, 40 mm adjustment code, PT G3/4 port, and the -S magnet requirement. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Given the 550 mm stroke, the 40 mm rod diameter and M36x2 thread provide rigidity, but an external guide is strongly recommended to prevent excessive side-loading on long unsupported travels.
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 SAIJ160AX550-40S FAQ
At 0.7 MPa, this 160 mm bore cylinder provides 14074 N of push force and 9425 N of pull force. The maximum theoretical force at 1.0 MPa is 2050 kgf. The operational speed range is 30-500 mm/s.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 550 mm nominal stroke by up to 40 mm, creating a usable travel window of 510 to 550 mm. It only sets the end position and does not lock the load without live air pressure.
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