Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-40S 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 SAIJ160BX850-40S
The AirTAC SAIJ160X850-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 810 to 850 mm, allowing you to dial back the nominal stroke by up to 40 mm during commissioning. Delivering 10053 N of push force at 0.5 MPa, it handles heavy loads with a 40 mm piston rod and G3/4 PT ports.
This variant includes a SUS304 stainless steel rod for corrosion resistance and an integrated magnet for position sensing. The extruded aluminum barrel incorporates sensor grooves on three sides, supporting AirTAC CMSE reed and DMSE electronic switches. It uses variable air cushions at both ends to decelerate high moving loads smoothly across its 30-500 mm/s speed range.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-40S |
|---|---|
| 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 SAIJ160BX850-40S
| 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 SAIJ160BX850-40S Is Used
Variable End-Stop Tuning
Dial in the exact 810 to 850 mm end position during machine setup without physically replacing the cylinder or adding external mechanical stops.
Heavy Product Changeover
Quickly adapt a heavy-duty conveyor or press line to varying product sizes by adjusting the 40 mm stroke window at the rear of the cylinder.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod and 18095 N push force at 0.9 MPa for robust, corrosion-resistant motion in demanding industrial environments.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-40S the Right Cylinder?
Choose this 160 mm bore when 10053 N of push force at 0.5 MPa is required, or step down to the 125 mm bore if 6136 N is sufficient for your payload. The adjustable stroke is ideal for fine-tuning end positions during product changeovers without adding external stops or swapping the cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 850 mm stroke is long, an external guide is recommended to prevent excessive side-loading on the rod. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true fail-safe load holding, select the SAIL or BSAI series instead.
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 SAIJ160BX850-40S FAQ
At a 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 850 mm nominal stroke down to 810 mm. It sets the end position but does not lock the load without continuous air pressure.
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