Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-30
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-30 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 SAIJ160BX450-30
The AirTAC SAIJ160X450-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a 420-450 mm usable travel window from its 450 mm nominal length. Equipped with a SUS304 stainless steel rod and PT tapered ports, it delivers 18095 N of push force at 0.9 MPa. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE or DMSE switches without extra brackets.
Because the rear stopper mechanically trims the retract end-position, you can dial in the exact travel limit at commissioning without adding external stops. The adjuster functions as a travel stop and works alongside the 50 mm air cushions to control end-of-stroke deceleration, but it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-30 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-30 |
|---|---|
| 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 SAIJ160BX450-30
| 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 SAIJ160BX450-30 Is Used
Heavy Press Tuning
Dial in the exact 420-450 mm end-stop during commissioning of a heavy assembly press without physically swapping the cylinder for a shorter unit.
Product Changeover
Quickly adjust the retract position by up to 30 mm on a packaging line when switching to a different pallet or product size.
Large Fixture Positioning
Set precise lower-end travel limits for large machining fixtures, using the 50 mm air cushions to smoothly decelerate heavy 18095 N loads.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-30 the Right Cylinder?
Choose this 160 mm bore when your application requires heavy thrust between the 10053 N of a 125 mm cylinder and the 15708 N of a 200 mm bore at 0.5 MPa. An adjustable-stroke SAIJ is preferred over a fixed-stroke SAI when you need to fine-tune the end position during machine setup or product changeover. To match this ISO 15552 footprint for a drop-in replacement, verify the 160 mm bore, 450 mm stroke, up to 30 mm adjustment, PT port threads, and the specific mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
With a 450 mm stroke, the 40 mm diameter rod and M36x2 thread provide substantial rigidity, but the extended travel means you must guide the load externally to prevent side-loading damage to the front cover seals.
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 SAIJ160BX450-30 FAQ
The rear adjuster acts as a mechanical stop that shortens the retract end-position. For this model, you can trim the 450 mm nominal stroke back by up to 30 mm, giving an effective travel window of 420-450 mm. It works alongside the air cushions for deceleration but does not lock or hold the load without air pressure.
At 0.5 MPa it provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N. The maximum rated force is 2050 kgf at 1.0 MPa.
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