Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-20S
The AirTAC SAIJ160X450-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 430 to 450 mm. It delivers substantial thrust, generating 14074 N of push force and 9425 N of pull force at 0.7 MPa. The integrated magnet supports position detection using AirTAC CMSE reed or DMSE electronic sensors.
This model features a SUS304 stainless steel rod for superior corrosion resistance and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper allows precise end-position tuning during commissioning without adding external stops. It is a travel stop only, not a locking mechanism.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAIJ160BX450-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SAIJ160BX450-20S Is Used
Heavy Press Tuning
Dial in the exact 430-450 mm end position during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Product Changeover
Quickly adjust the stroke window on a conveyor diverting station to handle different pallet sizes on the fly using the rear stopper.
Large Assembly Setup
Fine-tune the clamping reach on large automated assembly lines, utilizing the 14074 N push force to secure heavy components securely.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-20S the Right Cylinder?
Choose this 160 mm bore when an application requires heavy thrust beyond the 100 mm bore class, which provides 5497 N push force at 0.7 MPa. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, offering finer control than a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, specify the 450 mm stroke, 20 mm adjustment, PT tapered ports, and the -S magnet.
Because the 450 mm stroke is substantial, the 40 mm diameter rod and M36x2 thread handle high stresses, but an external guide is recommended to manage side loads on long unsupported travels. The rear adjuster and air cushions decelerate the load but do not hold it without live air; for load-holding without pressure, consider an external rod lock or the SAIL lock cylinder. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160BX450-20S FAQ
At 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 achieve a maximum push force of 18095 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 20 mm, creating a 430 to 450 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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