Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-20
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X800-20 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 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 SAIJ200 Adjustable Cylinder SAIJ200X800-20
It features a rear stroke adjuster that creates a 780-800mm usable travel window, allowing you to dial back the 800mm nominal stroke by up to 20mm during commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning tracking.
This model uses a robust 40mm carbon steel rod with an M36x2 thread to manage high side loads, though an 800mm stroke still requires an external guide to prevent rod deflection. It supports PT tapered porting and operates at speeds of 30-500mm/s. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-20 |
|---|---|
| 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 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 SAIJ200 Adjustable Cylinder SAIJ200X800-20
| 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 SAIJ200X800-20 Is Used
Heavy Press Tuning
Fine-tune the 780-800mm travel end-stop during heavy press commissioning to achieve exact bottoming force without machining custom spacers.
Large Pallet Changeover
Adjust the retract position by up to 20mm on the fly to accommodate different pallet sizes on a high-capacity transfer line.
Automated Assembly Setup
Dial in the exact end-of-stroke position during initial machine setup, ensuring precise placement of heavy components without external stopper blocks.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-20 the Right Cylinder?
Choose this 200mm bore if your machine requires moving heavy loads up to 15708N at 0.5MPa, or 21991N at 0.7MPa. If your force requirements are lower, stepping down to a 160mm bore provides 10053N at 0.5MPa, saving space and air consumption. The 20mm adjustment range is ideal for product changeovers where the exact end-of-stroke position varies slightly, replacing the need to swap out a fixed-stroke SAI cylinder.
Because the 800mm stroke is substantial, always support the load with an external guide to prevent excessive side-loading on the rod. Remember that the rear adjuster acts only as a travel stop and the air cushions handle deceleration; neither will hold the load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series. To match this ISO 15552 interchangeable unit, specify: 200mm bore, 800mm stroke, 20mm adjustment, PT G3/4 port, and the appropriate mounting bracket.
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 SAIJ200X800-20 FAQ
The rear adjuster screw allows you to shorten the 800mm nominal stroke by up to 20mm, creating a 780-800mm usable travel window. This stopper sets the end position but does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.