Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 20mm 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
- Stroke20 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20S
The AirTAC SAIJ160X20-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 20 mm stroke that can be dialed back by up to 20 mm, yielding a highly versatile 0-20 mm usable travel window for exact end-position tuning. Belonging to the 160 mm bore class, it generates 10053 N of pull force at 0.5 MPa and accommodates operating speeds of 30-500 mm/s.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and ships with a magnet for position sensing. You can pair the integrated sensor groove with AirTAC CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position and relies on the built-in air cushion for deceleration; it does not lock the load without continuous air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 20 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 SAIJ160BX20-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×20 | 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 SAIJ160BX20-20S Is Used
Heavy Press Tuning
Dial in the exact 0-20 mm bottoming position during heavy press commissioning to accommodate material thickness variations without changing tooling.
Product Changeover
Rapidly adjust the retract end-stop on a packaging line when switching to a different product size, minimizing machine downtime.
Clamp Positioning
Fine-tune the clamping reach on large industrial fixtures where a fixed 20 mm stroke might bottom out too hard against delicate components.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX20-20S the Right Cylinder?
Select this 160 mm bore cylinder when an application demands massive thrust combined with micro-adjustability at the end of stroke. If your setup requires slightly less force, stepping down to a 125 mm bore yields 5734 N of pull force at 0.5 MPa, whereas moving up to a 200 mm bore provides 15080 N. The adjustable stroke is ideal for machine commissioning or product changeovers, allowing you to shift the end stop without swapping the cylinder or adding external stops.
For an exact ISO 15552 replacement, match the 160 mm bore, 20 mm stroke, 20 mm adjustment code, PT tapered port thread, and the -S magnet option. Note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If your process requires true load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ160BX20-20S FAQ
At a standard 0.5 MPa operating pressure, this 160 mm bore cylinder produces 10053 N of pull force and 14074 N of push force at 0.7 MPa. It reaches a maximum thrust of 2050 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that trims the effective travel. Since the nominal stroke is 20 mm and the adjustment range is 20 mm, you can set the usable stroke anywhere within a 0-20 mm window. The adjuster only sets the travel end and does not lock the load without live air.
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