Airtac SAIJ200 Adjustable Cylinder SAIJ200BX55-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX55-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 55mm 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
- Stroke55 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 SAIJ200BX55-50S
The AirTAC SAIJ200X55-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 55 mm stroke by up to 50 mm. This yields a highly versatile 5-55 mm usable travel window, perfect for applications requiring variable end-stops without swapping out the physical actuator. Delivering immense thrust, it provides 15708 N of push force and 15080 N of pull force at 0.5 MPa.
This specific SKU features a SUS304 stainless steel rod (option B) for superior corrosion resistance and includes a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It utilizes PT tapered G3/4 ports and incorporates a robust 40 mm variable air cushion at both ends to manage heavy kinetic energy. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set spans Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX55-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX55-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 55 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 SAIJ200BX55-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×55 | 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 SAIJ200BX55-50S Is Used
Variable Position Pressing
Dial in the exact 5 to 55 mm pressing depth during machine setup or product changeover without replacing the cylinder or adding external mechanical stops.
Heavy-Duty End Stopping
Leverage the 15708 N push force at 0.5 MPa to halt heavy pallets or assemblies, using the rear adjuster to perfectly set the final resting position.
Corrosive Environment Actuation
Utilize the SUS304 stainless steel rod and adjustable travel window in washdown or chemically exposed setups requiring repeatable, fine-tuned endpoints.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX55-50S the Right Cylinder?
Choose this 200 mm bore actuator when your application demands maximum linear thrust—stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N. The adjustable stroke is ideal for machine changeovers where product sizes vary, letting you fine-tune the end position at commissioning rather than machining external stops. Because the 55 mm nominal stroke is short, side-load risks are minimal, but the 40 mm rod diameter easily handles high bending moments if the load is offset.
When specifying an ISO 15552 replacement, match the 200 mm bore, 55 mm stroke, 50 mm adjustment range, G3/4 PT ports, and the -S magnet requirement. Remember that the rear adjuster acts solely as a travel stop to decelerate the load; it does not hold position without live air. For true load-holding on power loss, consider an AirTAC SAIL pneumatic lock, BSAI clamp-lock cylinder, or an external pilot-operated check valve.
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 SAIJ200BX55-50S 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 delivers 3204 kgf of push force.
The rear adjuster screw lets you shorten the nominal 55 mm stroke by up to 50 mm, creating a 5-55 mm usable travel window. The adjuster functions as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
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