Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50
The AirTAC SAIJ160X55-50 is a double-acting ISO 15552 profile cylinder engineered with a rear stroke adjuster, allowing you to dial back the nominal 55 mm travel to a precise 5-55 mm usable window. Built with a durable SUS304 stainless steel rod, it delivers massive thrust, pushing 18095 N and pulling 9425 N at 0.9 MPa. This makes it highly effective for heavy-duty pressing or clamping where exact end-position tuning at commissioning is required without swapping out the entire unit.
Because the rear screw acts purely as a mechanical stop and works alongside the standard 50 mm air cushions, it decelerates the load but does not hold it in place without live air pressure. For applications requiring position holding without continuous pneumatic pressure, an external rod lock or the related AirTAC SAIL locking cylinder is necessary. The extruded aluminum barrel features sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is specified later.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 55 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 SAIJ160BX55-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×55 | 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 SAIJ160BX55-50 Is Used
Heavy-Duty Pressing
Delivers up to 18095 N of pushing force at 0.9 MPa for high-tonnage pressing, with the 50 mm adjustment window allowing precise bottom-out tuning.
Machine Changeover
Quickly reconfigure the effective stroke from 5 to 55 mm during product size transitions without replacing the cylinder or adding external stopper hardware.
Heavy Clamping Stations
Secures large workpieces using the robust 40 mm SUS304 stainless steel rod, providing reliable clamping in harsh industrial environments.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-50 the Right Cylinder?
Selecting this 160 mm bore cylinder is ideal when your application requires the immense output of a large rod but demands exact end-position calibration; if you need less force, stepping down to a 125 mm bore yields 11045 N of push at 0.9 MPa. The adjustable-stroke design is chosen over a fixed SAI cylinder when you need to fine-tune the travel window during machine setup or product changeover rather than machining external stops. To match this SKU exactly for an ISO 15552 replacement, specify the 55 mm stroke, 50 mm adjustment, PT tapered port threads, SUS304 rod material, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. Since the nominal stroke is under 300 mm, side-load concerns are minimal, but the heavy 40 mm rod diameter still handles substantial off-center loads effectively.
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 SAIJ160BX55-50 FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides a push force of 18095 N and a pull force of 9425 N. It can achieve a maximum push force of 10053 N at 0.5 MPa.
The rear adjuster screw allows you to mechanically shorten the 55 mm nominal stroke down to a minimum of 5 mm, creating a 5-55 mm usable travel window. This stopper only sets the end position and must not be used as a lock to hold the load without live air pressure.
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