Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-50S 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 SAIJ160BX850-50S
The AirTAC SAIJ160X850-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates an 800-850mm usable travel window. Equipped with a SUS304 stainless steel rod and a -S magnet for CMSE reed and DMSE electronic sensors, it yields 14074N push force at 0.7MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This model uses a PT tapered G3/4 port and relies on variable air cushions at both ends to decelerate heavy loads. The rear adjuster acts strictly as a mechanical stop for end-position tuning at commissioning; it is not a lock. For load-holding without live air pressure, an external SAIL or BSAI unit is required.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-50S |
|---|---|
| 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 SAIJ160BX850-50S
| 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 SAIJ160BX850-50S Is Used
Machine Changeover
Dial in the 800-850mm travel window during product size changes without swapping out the entire cylinder assembly.
Variable End Stops
Set precise rear mechanical stops for heavy conveyor sorting tasks that need exact positional tuning at commissioning.
Heavy Press Setup
Leverage 14074N of thrust at 0.7MPa for large press operations, using the rear screw to fine-tune the retracted position.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-50S the Right Cylinder?
Choose this 160mm bore when an application requires substantial thrust—stepping up to the 200mm bore yields 21991N push at 0.7MPa, while dropping to the 125mm bore provides 8590N. The 50mm adjustment range is ideal for product changeovers, allowing you to fine-tune the end position by up to 50mm without swapping the cylinder or adding external stops. Because the 850mm stroke is substantial, an external guide is recommended to manage side-load forces on the 40mm rod.
When replacing an ISO 15552 unit, match the 160mm bore, 850mm stroke, 50mm adjustment, PT G3/4 port, and the desired -S magnet. Note that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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 SAIJ160BX850-50S FAQ
The rear adjusting screw acts as a mechanical stop, allowing you to trim the effective travel back by up to 50mm. This creates an 800-850mm usable stroke window for fine-tuning end positions at commissioning without adding external stops.
At a 0.7 MPa operating pressure, the SAIJ160X850-50-S generates 14074N of push force and 9425N of pull force. The maximum thrust at 1.0 MPa is 2050 kgf.
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