Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-20S 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
- 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 SAIJ200BX800-20S
The AirTAC SAIJ200X800-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 780-800 mm. Delivering massive thrust, it yields 15708N push and 15080N pull at 0.5 MPa, scaling up to 3204 kgf at 1.0 MPa. The PT tapered port threads ensure a tight, leak-free pneumatic connection, while the integrated magnet (-S) enables precise position detection using AirTAC CMSE reed or DMSE electronic solid-state sensors.
This 200 mm bore profile cylinder features a robust 40 mm SUS304 stainless steel rod (code B) and M36x2 rod threads, offering superior corrosion resistance and high side-load capacity. Unlike fixed-stroke SAI models, the external rear adjusting screw allows you to fine-tune the retract end-position during commissioning without adding external stops. The adjuster acts purely as a travel stop and does not hold the load without live air pressure; for dead-end holding, consider the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-20S |
|---|---|
| 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 SAIJ200BX800-20S
| 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 SAIJ200BX800-20S 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 blocks.
Pallet Changeover
Adjust the retract stopper by up to 20 mm on the fly to handle slightly different pallet sizes on a high-force packaging line.
Large Mold Handling
Lift and position heavy 3204 kgf molds using the SUS304 rod, tuning the travel end to avoid over-travel during machine setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX800-20S the Right Cylinder?
Choose this 200 mm bore when the 160 mm class (10053N push at 0.5 MPa) cannot generate enough force for heavy pressing or lifting. The 20 mm adjustment range is ideal for product changeovers, letting you dial in the exact end-stop without swapping cylinders. Because the nominal stroke is 800 mm, the long unsupported piston rod requires an external guide to prevent binding and premature seal wear, despite the hefty 40 mm rod diameter.
For an exact ISO 15552 replacement, match the 200 mm bore, 800 mm stroke, 20 mm adjustment, PT G3/4 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. If your process requires the cylinder to hold its position safely without live air, use a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead.
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 SAIJ200BX800-20S FAQ
At 0.5 MPa operating pressure, it provides 15708N of push force and 15080N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective stroke back by up to 20 mm from the nominal 800 mm, giving a 780-800 mm travel window. It is a travel stop, not a lock, and will not hold the load without live air.
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