Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X550-50S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- 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 SAIJ200X550-50S
The AirTAC SAIJ200X550-50-S is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications. Equipped with a rear mechanical stopper, it provides a 500-550mm usable travel window, allowing you to fine-tune the end position at commissioning without swapping hardware. This -S variant includes a magnet for CMSE reed or DMSE solid-state sensors.
The extruded aluminum barrel integrates sensor grooves on both sides for flexible switch mounting. It uses a robust 40mm carbon steel rod with M36x2 threads, paired with 50mm air cushions at both ends to manage heavy impact loads. The PT tapered port is G3/4. Remember that the rear adjuster is a travel stop, not a lock; it cannot hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-50S |
|---|---|
| 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 | 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 SAIJ200X550-50S
| 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 SAIJ200X550-50S Is Used
Heavy Press Tuning
Dial in the exact 500-550mm travel window during setup to precisely crush or form heavy materials without recalculating fixed stopper lengths.
Product Changeover
Quickly adjust the end-stop position on a packaging line to accommodate different large product sizes on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-50S the Right Cylinder?
If you need less force, stepping down to a 160mm bore yields 10053N at 0.5 MPa. Choose this adjustable-stroke SAIJ over a fixed SAI when you need a variable end-stop for machine changeovers or product-size transitions. For load-holding without live air, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster only sets the travel end.
Because the 550mm stroke is relatively long, the 40mm rod needs external guidance to prevent excessive side-loading and binding. This model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits FB, CA, CB, and CR mounts. Operating speed is 30-500mm/s.
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 SAIJ200X550-50S FAQ
At 0.7 MPa, the push force increases to 21991N.
A rear stopper screw lets you shorten the 550mm nominal stroke by up to 50mm, creating a 500-550mm usable travel window. This stopper sets the end position but does not lock or hold the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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