Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S
The AirTAC SAIJ80X700-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 700 mm stroke that can be fine-tuned backward by up to 50 mm, creating a precise 650-700 mm usable travel window during commissioning. Delivering 2513 N of push force at 0.5 MPa, it handles substantial pneumatic workloads with ease.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and operates with PT tapered ports (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, and because this model carries the -S magnet, it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX700-50S Is Used
Variable End-Stop Tuning
Dial in the exact 650-700 mm retraction point during machine commissioning to accommodate different product lengths without installing external physical stops.
Line Changeover Setup
Quickly adjust the stroke by up to 50 mm when switching the manufacturing line to a new pallet or package size, minimizing downtime.
High-Force Positioning
Leverage the 2513 N push force at 0.5 MPa to move heavy fixtures while relying on the SUS304 stainless rod for durability in harsh environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-50S the Right Cylinder?
Select this 80 mm bore cylinder when an application demands high thrust (2513 N push at 0.5 MPa) alongside a variable end-stop. If your setup requires less force, stepping down to a 63 mm bore yields 1559 N; if you need significantly more power, a 100 mm bore provides 3927 N. The adjustable stroke is ideal for product-size changeovers on a line, allowing you to dial in the 650-700 mm window without swapping the cylinder or adding external stops. To match this exact unit for an ISO 15552 replacement, specify the 80 mm bore, 700 mm stroke, 50 mm adjustment, PT port thread, and the -S magnet.
Because the stroke is 700 mm, the 25 mm rod requires an external guide to prevent excessive side-loading and premature seal wear. Remember that the rear adjuster acts only as a travel stop, not a lock; the SAIJ cannot hold a load without live air pressure. For true load-holding, consider an AirTAC SAIL or BSAI series cylinder.
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 SAIJ80 Adjustable Cylinder SAIJ80BX700-50S FAQ
At a 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. It can reach up to 4523 N of push force at its maximum 0.9 MPa pressure rating.
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm from the 700 mm nominal length, providing a 650-700 mm travel window. It functions as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
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