Airtac SAIJ160 Adjustable Cylinder SAIJ160BX500-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX500-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX500-20S
The AirTAC SAIJ160X500-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 500 mm travel by up to 20 mm for a precise 480-500 mm usable window. Built with a SUS304 stainless steel rod, it delivers robust thrust up to 18095 N at 0.9 MPa. The integrated magnet supports position sensing using CMSE reed or DMSE solid-state switches.
Because this model features a 500 mm stroke on a large 160 mm bore, the 40 mm rod and M36x2 thread provide necessary rigidity, though an external guide is strongly recommended to manage side loads over this long travel distance. You can fine-tune the retract end position directly at commissioning without adding external stopper blocks. The rear adjuster acts purely as a travel stop and relies on the variable air cushion for deceleration; it does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX500-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX500-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 500 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 SAIJ160BX500-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×500 | 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 SAIJ160BX500-20S Is Used
Heavy-Duty Pressing
Dial in the exact 480-500 mm end-stop during heavy-duty pressing operations to accommodate material thickness variations without changing tooling.
Machine Changeover
Quickly reconfigure the retract position on automated lines during product size changeovers using the rear adjustment screw.
Large Assembly Jigs
Leverage the 18095 N push force and SUS304 rod for robust, corrosion-resistant actuation in large-scale industrial assembly fixtures.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX500-20S the Right Cylinder?
Choose this adjustable-stroke cylinder when your machine setup requires exact end-position tuning during product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your application requires less force, stepping down to a 125 mm bore yields 11045 N of push force at 0.9 MPa, but the 160 mm bore is necessary for heavy-duty pressing and clamping.
For a drop-in ISO 15552 replacement, match the 160 mm bore, 500 mm stroke, 20 mm adjustment range, PT tapered ports, and the -S magnet option. Note that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles. If your process demands true load-holding without continuous air pressure, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the rear stopper.
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 SAIJ160BX500-20S FAQ
At an operating pressure of 0.9 MPa, this 160 mm bore cylinder provides a push force of 18095 N and a pull force of 9425 N. The maximum push force is 10053 N at 0.5 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 500 mm nominal stroke by up to 20 mm, creating a 480-500 mm travel window. It only sets the end position and does not lock the load without live air pressure.
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