Airtac SAIJ200 Adjustable Cylinder SAIJ200AX25-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX25-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 25mm 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
- Stroke25 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX25-20S
The AirTAC SAIJ200X25-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. With a 25 mm nominal stroke and a 20 mm adjustment range, it provides a highly versatile 5 to 25 mm usable travel window. This built-in adjustability allows you to dial in exact end positions during commissioning without adding external stops.
This unit features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for position sensing. It operates at speeds of 30-500 mm/s and uses a PT G3/4 port. The rear adjuster functions strictly as a travel stop to fine-tune the retract position; it is not a lock, so you must maintain live air pressure to hold the load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX25-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX25-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 25 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 SAIJ200AX25-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×25 | 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 SAIJ200AX25-20S Is Used
Heavy Pressing Operations
Dial in the exact 5 to 25 mm travel distance for precision pressing tasks, allowing rapid recalibration when switching between parts of different heights.
Machine Changeover Setup
Use the rear stopper screw to modify the effective stroke instantly during product changeovers, eliminating the need to physically swap cylinders or reposition external mechanical stops.
Large Assembly Fixturing
Apply up to 15708N of force at 0.5 MPa to seat large components, using the fine-tuning adjustment to accommodate slight variations in fixture or assembly tolerances.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX25-20S the Right Cylinder?
Choose this 200 mm bore model when your application requires extreme force that smaller bores cannot provide, such as heavy pressing or large gate actuation. If your force requirements are lower, stepping down to a 160 mm bore yields 10053N of push force at 0.5 MPa, which may offer a more compact footprint. The adjustable stroke is ideal for product changeovers where the exact end-of-stroke position varies slightly.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Because the 25 mm stroke is short, side-loading risks are minimal, but the robust 40 mm rod and M36x2 thread handle high stress. For load-holding without air pressure, select a SAIL or BSAI cylinder instead of relying on the adjuster. The -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors.
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 SAIJ200AX25-20S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder delivers 15708N of push force and 15080N of pull force. At the maximum pressure of 1.0 MPa, it provides up to 3204 kgf of push force.
The 20 mm adjustment code means the 25 mm nominal stroke can be dialed back by up to 20 mm, creating a usable travel window of 5 to 25 mm. The rear adjuster acts as a mechanical stop to set the exact end position and does not lock the load without live air pressure.
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 SAIJ200AX25-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.