Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S
The AirTAC SAIJ200X325-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 275 to 325 mm. Built for heavy-duty tasks, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa. The extruded aluminum barrel features sensor grooves on both sides, and because this unit includes the -S magnet option, it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-position detection.
This model utilizes a SUS420J2 stainless steel rod (material code A) and PT tapered port threads. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning or product changeovers, eliminating the need to swap cylinders or add external stops. It is important to note that this adjuster, along with the variable air cushions at both ends, only decelerates the travel; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAIJ200AX325-50S Is Used
Heavy Press Tuning
Dial in the exact 275-325 mm retract distance during heavy-duty press setups without machining external stop collars.
Product Changeover
Quickly adjust the end-stop position on automated lines when switching to a different sized product variant.
Large Assembly Machines
Use the 15708 N push force to move massive assemblies while relying on the rear screw for final positioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S the Right Cylinder?
When specifying this 200 mm bore cylinder, which pushes with 15708 N at 0.5 MPa, stepping down to a 160 mm bore yields 10053 N of thrust if your load requirements decrease. Conversely, if your application demands even more force, you would need to look beyond the standard SAIJ range. The 50 mm adjustment range is ideal for machinery requiring variable end-stops, offering a distinct setup advantage over a fixed-stroke SAI cylinder. Because the nominal stroke is 325 mm, an external guide is recommended to prevent excessive side-loading on the 40 mm rod, despite the robust M36x2 thread handling high stress.
For drop-in ISO 15552 interchangeability, match the 200 mm bore, 325 mm stroke, 50 mm adjustment, PT port thread, and -S magnet configuration. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting FB, CA, CB, and CR brackets. Remember that a plain SAIJ does not hold position without live air; for true load-holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) 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 SAIJ200AX325-50S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it delivers 3204 kgf.
The rear adjuster screw lets you mechanically shorten the effective stroke by up to 50 mm. For a 325 mm nominal stroke, this creates an adjustable travel window between 275 mm and 325 mm 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 usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.