Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40S 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 SAIJ200AX375-40S
The AirTAC SAIJ200X375-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 375 mm stroke that can be fine-tuned backward by up to 40 mm, creating a precise 335-375 mm usable travel window. Built with a SUS420J2 stainless steel rod and a magnet for position sensing, it handles heavy loads with a push force of 15708 N and a pull force of 15080 N at 0.5 MPa.
This model features PT tapered port threads (G3/4) and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic solid-state switches along the stroke. The rear stopper screw lets you dial in the exact retract end position during commissioning without adding external stops.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40S |
|---|---|
| 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 SAIJ200AX375-40S
| 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 SAIJ200AX375-40S Is Used
Heavy Pressing Operations
Delivers up to 28274 N of push force at 0.9 MPa for heavy-duty forming, stamping, or pressing tasks where a rigid end stop is required.
Product Size Changeovers
The 40 mm adjustable travel window allows operators to quickly reconfigure the 335-375 mm stroke endpoint for different product lengths without changing the cylinder.
Large Assembly Jigs
Ideal for substantial automated fixtures, utilizing the SUS420J2 stainless steel rod to resist corrosion while handling heavy industrial payloads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40S the Right Cylinder?
Choose this 200 mm bore cylinder when an application demands extreme thrust, such as 15708 N push at 0.5 MPa, and requires exact end-position tuning. If you need slightly less force, stepping down to a 160 mm bore yields 10053 N push, but the SAIJ200X375-40-S is necessary for heavy-duty pressing or lifting. The 40 mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end stop without physically swapping the cylinder.
Because this is a 375 mm stroke, the long unsupported piston rod requires an external guide to prevent excessive side-loading and premature seal wear. When matching this for an ISO 15552 replacement, verify the 375 mm stroke, 40 mm adjustment, PT G3/4 ports, and the -S magnet. Remember that the rear adjuster is a travel stop, not a lock; if the machine requires load-holding without live air pressure, use an AirTAC SAIL pneumatic lock, BSAI clamp-lock cylinder, or an external rod lock.
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 SAIJ200AX375-40S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum operating pressure of 1.0 MPa, it achieves a maximum push force of 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke back by up to 40 mm, providing a usable travel window of 335 to 375 mm. It only sets the travel end and does not hold the load without continuous air pressure.
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