Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X550-40S 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 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 SAIJ200X550-40S
The AirTAC SAIJ200X550-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a carbon steel rod and a built-in magnet for position sensing. With a nominal 550 mm stroke and a 40 mm adjustment range, you can fine-tune the effective travel anywhere between 510 mm and 550 mm to dial in the exact retract end-position without adding external stops.
The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches directly. The rear adjuster acts purely as a mechanical stop for deceleration and positioning; it does not lock the load, so maintain live air or use an external rod lock for fail-safe holding.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40S |
|---|---|
| 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 | 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 SAIJ200X550-40S
| 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 SAIJ200X550-40S Is Used
Heavy Press Tuning
Dial in the exact 510 to 550 mm retract position during heavy press commissioning to accommodate varying material thicknesses without machining new stopper blocks.
Pallet Changeover
Adjust the rear stopper by up to 40 mm to handle different pallet sizes on a transfer line, enabling rapid product changeovers with minimal downtime.
Large Fixture Alignment
Fine-tune the end-position of large welding or clamping fixtures on the fly, ensuring precise alignment of heavy structural components.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40S the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring product changeovers, allowing you to shift the end-stop by up to 40 mm on the fly instead of swapping out a fixed-stroke SAI cylinder. To match this exact configuration for an ISO 15552 replacement, specify the 200 mm bore, 550 mm stroke, 40 mm adjustment, PT tapered port thread, and the -S magnet option.
Because the 550 mm stroke creates a long unsupported rod extension, you must use an external guide to prevent excessive side-loading and premature seal wear. The mounting hardware is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR brackets found on some other series.
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 SAIJ200X550-40S FAQ
The rear adjuster screw lets you shorten the effective travel from the 550 mm nominal stroke down to 510 mm. This creates a 510-550 mm usable window, allowing you to set the exact retract end-position during setup without replacing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.