Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X800-50S 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 SAIJ200X800-50S
The AirTAC SAIJ200X800-50-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. The built-in adjustment mechanism provides a usable travel window of 750-800 mm, allowing you to dial back the nominal 800 mm stroke by up to 50 mm during commissioning. This eliminates the need to swap the cylinder or bolt on external stops when precise end-positioning is required.
Built with a carbon steel rod and a PT tapered port thread, this 200 mm bore actuator operates at speeds of 30-500 mm/s. It features sensor grooves on both sides of the extruded aluminum barrel, and the included magnet (-S) directly supports AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts strictly as a travel stop for deceleration, meaning it will not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-50S |
|---|---|
| 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 SAIJ200X800-50S
| 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 SAIJ200X800-50S Is Used
Heavy Press Tuning
Fine-tune the 750-800 mm travel window during heavy press commissioning to achieve precise bottoming force without machining custom external stoppers.
Product Size Changeover
Quickly adjust the retract end-position by up to 50 mm on a conveyor line when handling different pallet sizes, avoiding full cylinder swaps.
Machine Setup Calibration
Dial in the exact end-stop during initial machine assembly, using the rear screw to perfectly time the 15708 N stroke with downstream operations.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-50S the Right Cylinder?
The adjustable stroke is ideal for product-size changeovers on a line, letting you fine-tune the end position without replacing the actuator. For load-holding without live pressure, this adjuster will not act as a lock; you should look at the SAIL or BSAI series, or use an external rod lock. Because the 800 mm stroke is long and unsupported, an external guide is mandatory to prevent excessive side-loading on the rod. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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 SAIJ200X800-50S FAQ
It can reach a maximum of 3204 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the 800 mm nominal stroke by up to 50 mm, creating a usable travel window of 750-800 mm. This stopper decelerates the load but does not lock or hold the position without continuous air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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