Airtac SAIJ160 Adjustable Cylinder SAIJ160BX800-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX800-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX800-20
The AirTAC SAIJ160X800-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to a 780-800 mm range. Built with a SUS304 stainless steel rod and PT tapered ports, it generates a substantial 14074 N push force at 0.7 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model uses an external rear stopper screw rather than a locking mechanism, meaning it decelerates the travel end but cannot hold a load without continuous live air pressure. For applications requiring true position holding, consider the SAIL or BSAI series. The 800 mm stroke on this 160 mm bore unit approaches the maximum standard limit of 1500 mm, but its long unsupported length demands an external guide to prevent excessive side-loading on the rod.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX800-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX800-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 800 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 SAIJ160BX800-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×800 | 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 SAIJ160BX800-20 Is Used
Product Size Changeover
Quickly dial in the 780-800 mm travel window during format changes on a packaging line, trimming up to 20 mm without replacing the cylinder.
Heavy Press Positioning
Leverage the 14074 N push force at 0.7 MPa to move heavy tooling into exact alignment, using the rear stopper to fine-tune the final contact point.
Long-Stroke Assembly
Handle extended 800 mm travel operations on large machinery, utilizing the double-acting profile barrel and internal cushions for controlled end-motion.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX800-20 the Right Cylinder?
Choose this 160 mm bore when you need high thrust forces up to 14074 N at 0.7 MPa, stepping up from a 125 mm bore that provides 8590 N. The adjustable stroke is ideal for production lines running mixed product sizes, allowing you to dial in a new end position during changeover without physically swapping the cylinder or adding external mechanical stops. The rear adjuster acts purely as a travel stop and relies on the internal air cushions for end-deceleration.
When matching this for an ISO 15552 replacement, verify the 160 mm bore, 800 mm stroke, 20 mm adjustment range, PT port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 800 mm stroke is highly extended, you must incorporate an external linear guide to support the load and protect the M36x2 rod thread from bending stresses.
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 SAIJ160BX800-20 FAQ
At a 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. It can deliver a maximum push of 18095 N at 0.9 MPa.
The rear adjuster screw acts as an external mechanical stop, allowing you to shorten the effective travel from the nominal 800 mm down to 780 mm. It sets the end position but does not lock the load without live air pressure.
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