Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-30S
The AirTAC SAIJ200X425-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 21991 N at 0.7 MPa, making it suited for heavy-duty industrial tasks. The integrated -S magnet enables position sensing with AirTAC CMSE reed and DMSE electronic solid-state switches.
This model provides a 395 to 425 mm usable travel window, allowing precise end-position tuning during commissioning. It features a SUS420J2 stainless steel rod for corrosion resistance and uses PT tapered port threads (G3/4). The extruded aluminum barrel includes sensor grooves on both sides, and the adjustable stopper acts purely as a travel limit, not a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 425 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 SAIJ200AX425-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×425 | 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 SAIJ200AX425-30S Is Used
Heavy Machinery Changeover
Dial in the 395-425 mm travel window during product line changeovers to accommodate different large component sizes without re-mounting hardware.
Press End-Stop Tuning
Fine-tune the retraction point on heavy pressing equipment at commissioning to achieve exact material forming depths without external stops.
Large Assembly Positioning
Position massive assemblies accurately by adjusting the rear stopper to vary the stroke end, ensuring perfect alignment of heavy industrial parts.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-30S the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when an application demands up to 21991 N of push force at 0.7 MPa, stepping up from a 160 mm bore that yields 14074 N. The 30 mm adjustment range is chosen when machinery requires variable end-stops or product-size changeovers without physically swapping the cylinder. For any fixed-position requirement without this trim flexibility, a standard SAI cylinder is sufficient.
Because the 425 mm stroke is substantial, the 40 mm rod diameter and M36x2 thread still require an external guide to manage side loads on long extensions. To match this ISO 15552 footprint for replacement, specify bore 200, stroke 425, 30 mm adjustment, PT G3/4 port, SUS420J2 rod, and the -S magnet. Note that the rear adjuster only sets the travel end; it does not hold the load without live air, so a SAIL or BSAI lock is needed for dead-load holding.
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 SAIJ200AX425-30S FAQ
At 0.7 MPa operating pressure, this 200 mm bore cylinder provides 21991 N of push force and 15080 N of pull force. It reaches a maximum of 28274 N push force at 1.0 MPa.
The rear adjuster screw lets you trim the effective stroke within a 395 to 425 mm window. It acts as a mechanical stop to set the end position, but it is not a lock and will not hold the load without continuous air pressure.
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