Airtac SAIJ200 Adjustable Cylinder SAIJ200BX550-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX550-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 550mm 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
- Stroke550 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 SAIJ200BX550-40S
The AirTAC SAIJ200X550-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 40 mm, creating a precise 510-550 mm usable window for fine end-position tuning. As a non-standard 550 mm stroke made-to-order unit, it delivers immense thrust, generating 21991 N of push force at 0.7 MPa. The integrated magnet works seamlessly with CMSE reed and DMSE electronic sensors fitted into the dual-side barrel grooves.
This variant uses a SUS304 stainless steel rod (code B) and PT tapered port threads, engineered for demanding environments. The robust 40 mm rod diameter and M36x2 thread handle substantial loads, though at 550 mm of travel, an external guide is strongly recommended to prevent excessive side-loading on the piston. The rear adjuster acts purely as a mechanical stop to set the retraction endpoint and must not be confused with a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX550-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX550-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 550 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 SAIJ200BX550-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×550 | 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 SAIJ200BX550-40S Is Used
Heavy Press End-Position Tuning
Dial in the exact 510-550 mm retraction endpoint during heavy press commissioning without adding external mechanical stops.
Large Product Size Changeover
Quickly adjust the travel window on a production line handling varying large product sizes, saving setup time between runs.
Automated Heavy Material Handling
Move substantial loads using the 21991 N push force, relying on the SUS304 rod for durability in industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX550-40S the Right Cylinder?
Selecting this 200 mm bore unit means stepping into the highest standard force class, offering 21991 N push force at 0.7 MPa; if lower force is acceptable, a 160 mm bore provides 14074 N under the same pressure. Choose this adjustable-stroke SAIJ over a fixed SAI when your machine setup requires variable end-stops or product-size changeovers without physically swapping the cylinder or bolting on external stops. The 510-550 mm travel window allows precise commissioning dial-in.
Because the 550 mm stroke exceeds the 1500 mm maximum standard stroke for this bore, this is a non-standard made-to-order configuration. When matching ISO 15552 replacements, verify the 200 mm bore, 550 mm stroke, 40 mm adjustment range, PT G3/4 ports, SUS304 rod, and the -S magnet. For any application requiring the load to be held without live air pressure, note that the rear adjuster is only a travel stop; you must use an external rod lock, a pilot-operated check valve, or an AirTAC SAIL 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 SAIJ200BX550-40S FAQ
At an operating pressure of 0.7 MPa, this 200 mm bore cylinder generates a push force of 21991 N and a pull force of 15080 N. It can reach a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 550 mm stroke by up to 40 mm, providing an adjustable travel window of 510 to 550 mm. This stopper fine-tunes the end position but does not hold the load without live air pressure.
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