Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-30S
The AirTAC SAIJ80X210-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa, making it well-suited for heavier actuation tasks. The integrated -S magnet enables position feedback using AirTAC CMSE reed or DMSE solid-state sensors housed in the dual-side barrel grooves.
Equipped with a 30mm adjustment range, this model transforms a 210mm nominal stroke into a 180-210mm usable travel window. This built-in rear stopper allows you to fine-tune the retract end position at commissioning without adding external stops. The adjuster acts purely as a travel limiter and deceleration aid alongside the variable air cushions; it is not a locking mechanism and will not hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80X210-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAIJ80X210-30S Is Used
Product Changeovers
Dial in the 180-210mm travel window on the fly during packaging line format changes without physically swapping the cylinder body.
End-Stop Tuning
Precisely set the retract position during machine commissioning using the rear screw, avoiding the need to bolt on external stopper blocks.
Heavy Actuation Setup
Leverage the 2513N push force at 0.5 MPa for pressing or lifting tasks while retaining the flexibility to trim the stroke by up to 30mm.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-30S the Right Cylinder?
Select this 80mm bore cylinder when an application requires substantial force (up to 4523N at 0.9 MPa) alongside variable end-stop positioning. If your setup needs less thrust, stepping down to a 63mm bore yields 1559N at 0.5 MPa; for higher force demands, a 100mm bore provides 3927N. The adjustable stroke is ideal for product changeovers, whereas a fixed-stroke SAI cylinder is sufficient for single-purpose tasks.
To replace an ISO 15552 cylinder, match the 80mm bore, 210mm stroke, 30mm adjustment, G3/8 PT port, and -S magnet. The SAIJ series supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 210mm stroke is moderately long, ensure external guide rails are used to prevent excessive side-loading on the 25mm carbon steel rod and M20x1.5 thread. For true load-holding without live air, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ80X210-30S FAQ
At 0.5 MPa, the push force is 2513N and the pull force is 2268N. At 0.9 MPa, the push force increases to 4523N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 210mm stroke by up to 30mm, creating a 180-210mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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