Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30S
The AirTAC SAIJ200X120-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel down to a 90-120 mm window without swapping hardware. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, making it suitable for heavy-duty pressing and clamping.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for position sensing. You can mount CMSE reed or DMSE electronic switches directly into the sensor grooves on both sides of the extruded aluminum barrel. The PT tapered port threads ensure a tight, leak-free pneumatic connection.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 120 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 SAIJ200AX120-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×120 | 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 SAIJ200AX120-30S Is Used
Heavy Pressing
Dial in the exact 90-120 mm end position for heavy pressing tasks, ensuring precise contact force without over-traveling the tooling.
Product Changeover
Quickly adjust the retract stop during production line changeovers to accommodate different large part sizes without changing the cylinder.
Heavy Clamping
Securely clamp large workpieces using up to 11045 N of push force at 0.7 MPa, fine-tuning the clamp reach via the rear screw.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-30S the Right Cylinder?
Choose this 200 mm bore when a 160 mm bore (providing 10053 N push at 0.5 MPa) cannot meet your force requirements. The adjustable stroke is perfect for machine setups requiring variable end-stops during product changeovers, eliminating the need to bolt on external stops or buy a fixed-stroke SAI cylinder.
Remember that the rear adjuster acts only as a travel stop, not a lock; the cylinder cannot hold a load without live air, so consider a SAIL or BSAI model if true load-holding is required. For ISO 15552 replacement matching, verify the 120 mm stroke, 30 mm adjustment, PT G3/4 port, and the -S magnet. Although the stroke is 120 mm, the heavy 40 mm rod handles high side loads, yet external guiding remains best practice for stability.
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 SAIJ200AX120-30S FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the 120 mm nominal stroke by up to 30 mm, creating a usable travel window of 90 to 120 mm. This stopper fine-tunes the end position but does not lock the load without continuous air pressure.
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Standard models usually ship in 3-4 days.
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