Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50 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 SAIJ160AX550-50
The AirTAC SAIJ160X550-50 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial push force of 18095N at 0.9 MPa. It features a 550mm nominal stroke paired with a rear mechanical adjuster that creates a precise 500-550mm usable travel window. This allows operators to dial in the exact retract position during commissioning without swapping out the cylinder.
Built with an extruded aluminum barrel and a robust 40mm SUS420J2 stainless steel rod, this unit handles demanding environments. It operates at 30-500mm/s and uses PT tapered G3/4 ports. The rear stopper sets the travel end-point, but it is not a locking device; the cylinder relies on live air to hold the load, and external guides are recommended for this 550mm stroke to prevent rod side-loading.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50 |
|---|---|
| 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 SAIJ160AX550-50
| 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 SAIJ160AX550-50 Is Used
Heavy Press Tuning
Fine-tune the 500-550mm retract position on heavy pressing equipment during setup, ensuring precise crush depth without machining external stop collars.
Pallet Changeover
Adapt diverter arms on a conveyor line to different pallet sizes instantly by dialing back the stroke up to 50mm, minimizing machine downtime.
Large Assembly Positioning
Position large automotive or industrial components with 18095N of push force, relying on the adjustable end-stop to perfect the placement geometry.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-50 the Right Cylinder?
Selecting this 160mm bore cylinder makes sense when your machinery requires high thrust, such as 14074N at 0.7 MPa, combined with variable end-stop positioning. If your application needs less force, stepping down to a 125mm bore yields 11045N at 0.9 MPa, whereas moving up to a 200mm bore provides 28274N. The adjustable stroke is ideal for product changeovers, allowing you to trim up to 50mm of travel rather than installing a fixed-length SAI cylinder.
For an exact ISO 15552 replacement, match the 160mm bore, 550mm stroke, 50mm adjustment code, PT G3/4 port, and your required mounting bracket. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options. Because the stroke exceeds 300mm, ensure you use an external guide to support the load, as the rear adjuster functions only as a travel stop, not a load-holding brake.
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 SAIJ160AX550-50 FAQ
At 0.9 MPa, this 160mm bore cylinder provides a push force of 18095N and a pull force of 9425N. At 0.5 MPa, the push force is 10053N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective travel from 550mm down to 500mm. It sets the end position but does not lock the load without live air pressure.
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