Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100 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 SAIJ200AX250-100
The AirTAC SAIJ200X250-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 150-250 mm usable travel window from its 250 mm nominal stroke. Delivering 15708 N of push force at 0.5 MPa, it handles massive loads up to a 3204 kgf maximum at 1.0 MPa. The 40 mm SUS420J2 stainless steel rod provides excellent corrosion resistance, while the PT tapered G3/4 ports ensure high flow capacity.
The rear adjuster screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning or product changeover without swapping the cylinder. It does not lock or hold the load without live air pressure. For position holding without continuous air, an external rod lock or related types like SAIL or BSAI are required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100 |
|---|---|
| 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 SAIJ200AX250-100
| 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 SAIJ200AX250-100 Is Used
Heavy Press Tuning
Dial in the exact 150-250 mm retract position during machine setup to accommodate varying material thicknesses without replacing the cylinder.
Pallet Changeover
Adjust the end-stop on the fly when switching the production line between different pallet or product sizes, ensuring precise heavy-load placement.
Large Assembly Indexing
Fine-tune the stroke window during commissioning of large-scale assembly stations to perfect the mating of heavy components.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-100 the Right Cylinder?
Choose this 200 mm bore when the 160 mm class (14074 N push at 0.5 MPa) is insufficient for your heaviest transfers. An adjustable stroke is ideal when you need a variable end-stop to dial in the exact retract position across different product sizes on the same line, rather than committing to a fixed-stroke SAI cylinder. As a direct ISO 15552 dimensional replacement, verify your bore, 250 mm stroke, 100 mm adjustment, PT G3/4 ports, and mounting interface.
Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because this cylinder lacks a magnet for sensors, use external physical stops or add a magnet (-S) if you require CMSE reed or DMSE electronic switch feedback. For any stroke of 300 mm or more, an external guide is recommended to prevent side-loading damage, though this 250 mm travel benefits from the robust 40 mm rod when carrying heavy loads.
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 SAIJ200AX250-100 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 its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw lets you mechanically shorten the 250 mm nominal stroke by up to 100 mm, creating a 150-250 mm usable travel window. It functions as a travel stop for end-position tuning and does not hold the load without live air.
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