Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-30
The AirTAC SAIJ200X40-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 10 to 40 mm, letting you dial back the 40 mm nominal stroke by up to 30 mm during commissioning. Delivering 15708 N of push force at 0.5 MPa, this massive 200 mm bore unit handles heavy positioning tasks. It features a SUS420J2 stainless steel rod and a PT tapered port.
Because the adjuster acts as a mechanical stop on the retract end, it fine-tunes end positions without requiring external stops. The adjuster and the variable air cushions at both ends decelerate the load but do not hold it without live air. For load-holding, a SAIL or BSAI variant is required. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 40 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 SAIJ200AX40-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×40 | 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 SAIJ200AX40-30 Is Used
Heavy Press Tuning
Dial in the exact end-position of a heavy press during commissioning, using the 10-40 mm travel window to set the precise crush distance without adding external mechanical stops.
Product Changeover
Adapt a heavy-duty line for different product sizes by adjusting the retract stop up to 30 mm, enabling rapid equipment setup changes.
Short-Stroke Positioning
Execute heavy clamping or positioning tasks where a short, fine-tuned travel range is critical for the assembly process.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-30 the Right Cylinder?
Choose this 200 mm bore cylinder when you need extreme thrust—15708 N at 0.5 MPa—combined with a short, highly adjustable travel window. If your application requires less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring variable end-stops or fine-tuning without swapping cylinders. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options. To replace an ISO 15552 cylinder, match the 200 mm bore, 40 mm stroke, 30 mm adjustment, PT port, and lack of a magnet.
Although the stroke is short, the 40 mm diameter rod and M36x2 thread handle substantial side loads. However, long unsupported strokes still need an external guide. Operating speed is 30-500 mm/s.
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 SAIJ200AX40-30 FAQ
It features a rear adjuster screw that acts as a mechanical stop, allowing you to trim the nominal 40 mm stroke back by up to 30 mm. This creates a usable travel window of 10 to 40 mm for fine-tuning end positions at commissioning.
At 0.5 MPa operating pressure, the SAIJ200X40-30 provides 15708 N of push force and 15080 N of pull force. It can reach a maximum push force of 21991 N at 0.7 MPa.
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