Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX200-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-20S
The AirTAC SAIJ80X200-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N pull force at 0.5 MPa and features a 25mm SUS304 stainless steel rod for high corrosion resistance. The built-in adjuster creates a 180-200mm usable travel window, allowing you to dial back the 200mm nominal stroke by up to 20mm during commissioning.
This variant includes a piston magnet for position sensing with AirTAC CMSE reed and DMSE electronic sensors. It uses a PT G3/8 port and provides 36mm of adjustable air cushioning at both ends. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
The rear stopper mechanism fine-tunes the retract end-position without requiring external stops or cylinder swaps. Note that this adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SAIJ80BX200-20S Is Used
Product Changeovers
Dial in the 180-200mm travel window during line changeovers to accommodate slightly different package sizes without swapping cylinders.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to perfect pressing or clamping depth directly at the cylinder.
Corrosive Environments
Leverage the SUS304 stainless steel rod for pneumatic automation in food processing or chemical packaging lines requiring rust resistance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-20S the Right Cylinder?
Choose this 80mm bore when your application requires higher thrust than a 63mm cylinder (1402N pull at 0.5 MPa) but less than a 100mm bore (3681N pull). The adjustable 180-200mm stroke is ideal for machine setups requiring variable end-stops during product changeovers. If you need fixed travel without the adjuster, the standard SAI series is a simpler alternative.
When replacing an ISO 15552 cylinder, match the 80mm bore, 200mm stroke, 20mm adjustment, PT G3/8 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, CR). For this 200mm stroke, the 25mm rod handles side loads well, but always guide unsupported loads externally.
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 SAIJ80BX200-20S FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as an external stopper, allowing you to shorten the effective travel from 200mm down to 180mm. It sets the end position but does not lock the load without live air pressure.
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