Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-100
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-100
The AirTAC SAIJ200X375-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 375 mm travel by up to 100 mm. This creates a precise 275-375 mm usable window, enabling exact end-position tuning at commissioning without swapping the cylinder or adding external stops. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, with a robust 40 mm rod and M36x2 thread.
This unit features a SUS420J2 stainless steel rod (code A) for superior corrosion resistance and uses PT tapered port threads (G3/4). The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is configured without a magnet. The rear adjuster acts strictly as a travel stop and works alongside variable air cushions at both ends to decelerate the load, but it does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-100 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 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 SAIJ200AX375-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×375 | 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 SAIJ200AX375-100 Is Used
Heavy Machinery Changeover
Dial in the 275-375 mm stroke window during product family changeovers, using the rear screw to set new end positions without machining new hard stops.
Large Press Positioning
Leverage the 15708 N push force to move heavy platens, relying on the 40 mm rod to maintain stability under high dynamic loads.
Commissioning Fine-Tuning
Trim the effective travel by up to 100 mm during initial setup to perfectly time machine sequences, avoiding the need to remove the cylinder for shimming.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-100 the Right Cylinder?
Choose this 200 mm bore cylinder when an application requires extreme force—up to 15708 N push at 0.5 MPa—and variable end-stops. If you need less force, stepping down to a 160 mm bore yields 10053 N of push force, but the SAIJ200X375-100 is necessary for heavy-duty positioning. The 100 mm adjustment range is ideal for product-size changeovers on a line, providing setup flexibility that a fixed-stroke SAI cylinder cannot match. Because the nominal stroke is 375 mm, an external guide is recommended to handle side loads on the long, unsupported travel.
To replace an ISO 15552 cylinder, match the 200 mm bore, 375 mm stroke, 100 mm adjustment, G3/4 PT ports, and the SUS420J2 rod material. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Remember that the rear adjuster is a stop, not a lock; for load-holding without live air, select an SAIL or BSAI cylinder instead.
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 SAIJ200AX375-100 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can reach a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that trims the effective travel back from the 375 mm nominal stroke, providing a usable 275-375 mm window. It sets the retract end position but does not lock the load without continuous air pressure.
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