Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-30S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 850mm 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
- Stroke850 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-30S
The AirTAC SAIJ160X850-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 820-850 mm, allowing you to dial back the 850 mm nominal stroke by up to 30 mm during commissioning. Belonging to the 160 mm bore class, it delivers substantial thrust, generating 14074 N of push force at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and this configuration includes a magnet for position sensing.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. It achieves a maximum push force of 18095 N at 0.9 MPa. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position without adding external stops. For applications requiring load holding without live air pressure, consider the SAIL or BSAI series, as this adjuster does not function as a lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-30S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 850 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 SAIJ160BX850-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×850 | 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 SAIJ160BX850-30S Is Used
Heavy Machinery Setup
Fine-tunes the retract end-stop on large actuators during machine assembly without requiring custom external stopper blocks.
Product Line Changeover
Adjusts the travel window from 820 to 850 mm quickly when switching between different sized heavy components on the same conveyor.
High-Force Positioning
Handles robust clamping or pressing tasks requiring up to 18095 N of force at 0.9 MPa with precise end-position tuning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-30S the Right Cylinder?
Select this 160 mm bore cylinder when an application demands high force combined with precise end-position tuning, such as accommodating product size changes on a line without physically swapping the cylinder. If you need slightly less force, stepping down to a 125 mm bore yields 8590 N of push force at 0.7 MPa. Because this is an 850 mm stroke, the 40 mm diameter rod and M36x2 thread provide robust support, but an external guide is recommended to prevent excessive side-loading on the long unsupported travel.
This model uses a reduced SAIJ mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. It is dimensionally interchangeable per ISO 15552. To match this exact configuration when replacing a cylinder, verify the 160 mm bore, 850 mm stroke, 30 mm adjustment range, PT port threads, and the -S magnet option which supports AirTAC CMSE reed and DMSE electronic sensors.
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 SAIJ160BX850-30S FAQ
This 160 mm bore cylinder generates a push force of 14074 N at 0.7 MPa and reaches 18095 N at 0.9 MPa. The pull force at 0.7 MPa is 9425 N.
The rear adjuster screw allows you to shorten the 850 mm nominal stroke by up to 30 mm, providing an effective travel window of 820-850 mm. It acts as a mechanical stop for end-position tuning and does not lock the load without live air.
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