Airtac SAIJ200 Adjustable Cylinder SAIJ200X45-20S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X45-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 45mm 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
- Stroke45 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 SAIJ200X45-20S
The AirTAC SAIJ200X45-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers massive thrust, pushing 15708N and pulling 15080N at 0.5 MPa, making it suited for heavy-duty operations. The integrated -20 mm adjustment mechanism allows you to fine-tune the effective travel window down from a 45 mm nominal stroke to a minimum of 25 mm. This built-in flexibility lets you dial in exact end positions during commissioning without needing to physically swap the cylinder or bolt on external stops.
Equipped with a magnet for position sensing, this unit works seamlessly with AirTAC CMSE reed and DMSE solid-state switches housed in the dual-side sensor grooves. The bore dictates a G3/4 PT tapered port and a robust 40 mm carbon steel rod with an M36x2 thread, providing high structural rigidity. While the rear adjuster and dual air cushions safely decelerate the load at travel ends, note that this cylinder relies on live air pressure; it does not function as a lock or brake, so load-holding requires a SAIL or BSAI variant.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X45-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X45-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 45 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 SAIJ200X45-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×45 | 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 SAIJ200X45-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 25 to 45 mm travel window during heavy press commissioning to accommodate varying material thicknesses without changing the cylinder.
Product Size Changeover
Adjust the rear stopper up to 20 mm on automated lines to handle different product dimensions quickly, avoiding mechanical teardown.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X45-20S the Right Cylinder?
Selecting this 200 mm bore model is appropriate when your application requires extremely high force, as it generates up to 3204 kgf at 1.0 MPa. The adjustable stroke is highly beneficial for product changeovers on a line, allowing you to reposition the end stop by up to 20 mm on the fly. When replacing an ISO 15552 cylinder, match the 200x45 dimensions, the 20 mm adjustment range, the G3/4 PT port, and the -S magnet requirement. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200X45-20S FAQ
At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 45 mm stroke by up to 20 mm, creating a usable travel window of 25 to 45 mm. It only sets the travel end and does not lock the load without live air pressure.
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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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