Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-40S
The AirTAC SAIJ160X250-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers substantial thrust, pushing with 10053 N and pulling with 9425 N at 0.5 MPa. The integrated -40 mm adjustment screw allows you to fine-tune the effective travel down from the 250 mm nominal stroke, creating a precise 210 to 250 mm usable window without requiring external stops.
This unit features a SUS304 stainless steel rod (code B) for superior corrosion resistance and carries PT tapered port threads (G3/8). The -S magnet enables position sensing via AirTAC CMSE reed or DMSE electronic switches fitted into the dual sensor grooves. The rear stopper sets the end position but does not lock the load; for dead-pilot holding, use a SAIL or BSAI variant.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 250 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 SAIJ160BX250-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 SAIJ160BX250-40S Is Used
Heavy Press Tuning
Dial in the exact 210 to 250 mm end-stop during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Product Changeover
Quickly readjust the stroke window on automated assembly lines when switching between different product sizes, minimizing machine downtime.
High-Force Positioning
Leverage the 10053 N push force to move and position heavy pallets or industrial molds, relying on the stainless rod for durability.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-40S the Right Cylinder?
Select this 160 mm bore when a 100 mm bore (3927 N push at 0.5 MPa) lacks the power for heavy positioning, but a 200 mm bore (15708 N) would be excessive. The adjustable 210-250 mm window is chosen over a fixed SAI cylinder when a machine requires exact end-position tuning during commissioning or product changeover. To match this ISO 15552 footprint for a direct replacement, verify the 250 mm stroke, -40 mm adjuster, PT G3/8 port, and the -S magnet requirement.
Because the 250 mm stroke is substantial, the 40 mm rod diameter handles high side loads well, yet an external guide rail is still recommended to prevent premature seal wear if the load is cantilevered. Remember that the rear adjuster acts only as a travel stop; it cannot hold the load safely without continuous air pressure.
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 SAIJ160BX250-40S FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. It can reach up to 18095 N push force at 0.9 MPa.
The rear adjuster screw lets you shorten the 250 mm nominal stroke by up to 40 mm, providing a usable travel window of 210 to 250 mm. This stopper fine-tunes the retract position but does not lock the load without live air pressure.
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