Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-20
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X400-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm 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
- Stroke400 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 SAIJ200X400-20
The AirTAC SAIJ200X400-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 380 to 400 mm, allowing you to dial back the nominal 400 mm stroke by up to 20 mm during machine commissioning. Built with an extruded aluminum barrel and a robust 40 mm carbon steel rod, it handles heavy thrust up to 15708 N at 0.5 MPa and 21991 N at 0.7 MPa.
This adjustable model uses a PT tapered port thread and operates at speeds of 30-500 mm/s. The rear stopper mechanism lets you fine-tune the retract end position without swapping the cylinder or adding external stops. It supports AirTAC CMSE reed and DMSE electronic sensors via dual side barrel grooves, and its mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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 SAIJ200X400-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×400 | 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 SAIJ200X400-20 Is Used
Heavy Press Tuning
Dial in the exact 380-400 mm retract stop during heavy press commissioning without machining new external stopper blocks.
Product Changeover
Quickly adjust the end-of-stroke position on packaging lines handling varying product sizes by turning the rear screw.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-20 the Right Cylinder?
The adjustable 380-400 mm window is ideal for product changeovers where exact retract positioning varies slightly. Because the 400 mm stroke is long, an external guide is recommended to prevent rod side-loading. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true position holding, consider the SAIL or BSAI series. To match this ISO 15552 cylinder, specify a 200 mm bore, 400 mm stroke, 20 mm adjustment, PT G3/4 ports, and no magnet.
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 SAIJ200X400-20 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 400 mm down to 380 mm, providing a 20 mm tuning window without replacing the cylinder.
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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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