Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-75S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-75S
The AirTAC SAIJ200X250-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 175 to 250 mm. Built with a 200 mm bore, it delivers substantial thrust up to 21991 N at 0.7 MPa, making it ideal for heavy-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides, and because this unit includes the -S magnet, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-position detection.
This model features a PT tapered port thread and a robust SUS420J2 stainless steel piston rod (code A) for enhanced durability against moisture. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning; it is not a locking device and will not hold the load without live air pressure. For applications requiring true load-holding without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-75S |
|---|---|
| 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 | 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 SAIJ200AX250-75S
| 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 SAIJ200AX250-75S Is Used
Heavy Press Tuning
Dial in the exact 175-250 mm travel window during heavy press commissioning to accommodate varying material thicknesses without swapping the cylinder.
Product Changeover Stops
Adjust the retract end-position on the fly during packaging line product size changeovers, utilizing the 75 mm adjustment range to handle different carton depths.
Large Assembly Positioning
Move heavy assemblies along an ISO 15552 footprint with 21991 N of force, relying on the SUS420J2 rod to withstand harsh industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-75S the Right Cylinder?
Select this 200 mm bore cylinder when your application requires up to 21991 N of push force at 0.7 MPa and the ability to dial in the exact end-of-stroke position without adding external physical stops. If your machinery only requires 15708 N of push force at 0.7 MPa, stepping down to a 160 mm bore saves space and air consumption. Conversely, if you need less force, a 160 mm bore provides 14074 N at the same pressure. The 75 mm adjustment range is particularly useful for product size changeovers on a packaging line, allowing operators to reposition the end stop rapidly. When specifying an ISO 15552 replacement, match the 250 mm stroke, 75 mm adjustment range, PT G3/4 port, and the -S magnet requirement.
Because this cylinder utilizes a large 40 mm diameter rod with an M36x2 thread, it handles significant side loads, though any stroke over 300 mm still necessitates an external guide to prevent rod binding. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting FB, CA, CB, and CR configurations to streamline the adjustable rear housing design.
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 SAIJ200AX250-75S FAQ
At an operating pressure of 0.7 MPa, this 200 mm bore cylinder generates 21991 N of push force and 21991 N of pull force. It can deliver a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective stroke from the nominal 250 mm down to 175 mm. This provides a 75 mm travel window for fine-tuning the end position at commissioning without changing the cylinder itself, though the adjuster acts only as a stop and does not lock the load.
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 SAIJ200AX250-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.