Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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.
- BoreØ200 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S
The AirTAC SAIJ200X800-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708 N at 0.5 MPa. It features a robust 40 mm SUS420J2 stainless steel rod and PT tapered ports. The built-in magnet supports position sensing.
With a nominal 800 mm stroke and a 20 mm adjustment range, this SKU provides a usable travel window of 780-800 mm. This allows you to fine-tune the retract end position at commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX800-20S Is Used
Heavy Press Tuning
Dial in the exact 780-800 mm end position during heavy press commissioning to accommodate material thickness variations without external stopper hardware.
Pallet Changeover
Adjust the retract distance on the fly during line changeovers to handle different pallet sizes, using the 20 mm rear stopper for rapid setup.
Large Fixture Clamping
Leverage the 15708 N push force to secure large aerospace or automotive fixtures, fine-tuning the clamping reach to the precise millimeter.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20S the Right Cylinder?
Choose this 200 mm bore cylinder when an 80 mm bore provides insufficient force, as the 200 mm generates 15708 N push force at 0.5 MPa compared to the 80 mm's 2513 N. The adjustable 780-800 mm travel window is ideal for product changeovers, dialing in the exact end-stop without swapping the cylinder. Because the stroke is 800 mm, the long unsupported rod requires an external guide to prevent excessive side-loading and premature seal wear.
The rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an external rod lock or the AirTAC SAIL series. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. The -S magnet works precisely with AirTAC CMSE reed and DMSE electronic solid-state sensors.
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 SAIJ200 Adjustable Cylinder SAIJ200AX800-20S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it achieves a maximum push force of 3204 kgf.
The rear adjusting screw acts as a mechanical stop that lets you trim the effective stroke back by up to 20 mm, creating a 780-800 mm usable travel window. It sets the end position but is not a lock, meaning the cylinder requires live air to hold the load.
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