Airtac SAIJ160 Adjustable Cylinder SAIJ160BX45-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX45-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 45mm 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
- Stroke45 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX45-20
The AirTAC SAIJ160X45-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the retract end position. By turning the external stopper screw, you can trim the nominal 45 mm stroke back by up to 20 mm, creating a precise 25-45 mm usable travel window without adding external stops. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 14074 N push force at 0.7 MPa.
This adjustable-stroke design is tailored for commissioning flexibility and product-size changeovers. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. The extruded aluminum barrel includes dual sensor grooves, and the standard variable air cushions at both ends ensure smooth deceleration, though the adjuster acts only as a travel stop and not a load-holding lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX45-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX45-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 45 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 SAIJ160BX45-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×45 | 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 SAIJ160BX45-20 Is Used
Machine Changeover
Dial in the exact 25 to 45 mm retract position during product-size changeovers without swapping the cylinder or bolting on external stops.
Clamping Force Setup
Leverage the 14074 N push force at 0.7 MPa to securely clamp large workpieces while fine-tuning the exact clamping depth at the rear stopper.
Assembly Pressing
Press components into place with high force and use the 20 mm adjustment window to compensate for material thickness variations on the fly.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX45-20 the Right Cylinder?
Choose this 160 mm bore model when your application requires substantial thrust, such as the 10053 N pull force at 0.5 MPa, but demands exact end-position tuning during setup. If you need less force, stepping down to a 100 mm bore yields 3927 N push at 0.5 MPa, while moving up to a 200 mm bore provides 15708 N. The adjustable 25-45 mm travel window is perfect for variable end stops, whereas a fixed-stroke SAI cylinder is better for repetitive rigid cycles. Since the 45 mm stroke is short, side-loading is minimal, but always guide the load for straightness. For load-holding without live air, select a SAIL or BSAI cylinder, as the SAIJ adjuster is a stop, not a brake. To match this ISO 15552 replacement exactly, specify: 160 mm bore, 45 mm stroke, 20 mm adjustment, PT ports, SUS304 (B) rod, and no magnet.
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 SAIJ160BX45-20 FAQ
The rear adjuster screw lets you shorten the nominal 45 mm stroke by up to 20 mm, providing a usable travel window of 25 to 45 mm. It acts as a mechanical stop to set the exact retract end position during commissioning.
At 0.5 MPa it provides 10053 N of push force and 9425 N of pull force. At 0.7 MPa, the push force increases to 14074 N.
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