Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 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 SAIJ200X250-20S
The AirTAC SAIJ200X250-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708N and pulling 15080N at 0.5 MPa, making it suited for heavy-duty positioning. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic solid-state sensors housed in the dual-side extruded barrel grooves.
This model features a 250mm nominal stroke that can be fine-tuned down by up to 20mm, creating a 230-250mm usable travel window for exact commissioning. It uses a robust 40mm carbon steel rod with an M36x2 thread, paired with PT tapered port threads and 50mm variable air cushions at both ends to manage high kinetic energy smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200X250-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200X250-20S Is Used
Heavy Press Tuning
Dial in the exact 230-250mm end position during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Product Line Changeover
Quickly adjust the stroke window on the fly when switching between different large-format product sizes on a high-force assembly line.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-20S the Right Cylinder?
The adjustable 230-250mm window is ideal for dialing in exact end positions during machine setup or product changeover without adding external mechanical stops. For load-holding without live air pressure, note that the rear adjuster is strictly a travel stop, not a lock; you should specify an AirTAC SAIL or BSAI cylinder instead.
To replace an ISO 15552 cylinder, match the 200mm bore, 250mm stroke, 20mm adjustment range, PT port threads, and the -S magnet. Because the 250mm stroke is under the 300mm side-load threshold, the standard 40mm rod handles typical loads well, though heavy lateral forces still require an external guide. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ200X250-20S FAQ
The rear adjuster acts as a mechanical stop, allowing you to shorten the 250mm nominal stroke by up to 20mm, creating a 230-250mm usable travel window. It only sets the end position and does not lock the load without live air.
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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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