Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-20S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X40-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-20S
The AirTAC SAIJ200X40-20-S is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty operations requiring exact end-position tuning. The built-in rear adjuster allows you to fine-tune the stroke within a 20-40mm usable travel window, providing on-the-fly adaptability without external stops.
This adjustable-stroke model features a -S magnet compatible with CMSE reed and DMSE electronic sensors for precise position feedback. Unlike a fixed-stroke SAI cylinder, the external stopper screw lets you dial in the retract end during commissioning. The adjuster functions strictly as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-20S |
|---|---|
| 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-20S
| 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 SAIJ200X40-20S Is Used
Heavy Press Fit Tuning
Dial in the exact 20-40mm travel window during heavy press operations to ensure perfect insertion depth without repositioning the entire cylinder assembly.
Product Changeover Stops
Quickly adjust the end-stop for varying product sizes on a high-force assembly line, using the rear screw to shift the 40mm nominal stroke as needed.
Short-Stroke Clamping
Apply up to 15708N of clamping force at 0.5MPa while fine-tuning the clamping distance to accommodate material thickness variations.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-20S the Right Cylinder?
The SAIJ200X40-20-S is dimensionally interchangeable with ISO 15552 cylinders and includes a PT port thread, carbon steel rod, and -S magnet for CMSE/DMSE switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the stroke is short at 40mm, side-load risks are minimal, but always ensure the load is guided to prevent rod binding. For load-holding requirements without continuous air pressure, this cylinder is insufficient; consider an external pilot-operated check valve or the AirTAC SAIL lock 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 SAIJ200X40-20S FAQ
The nominal stroke is 40mm, but the rear adjuster allows you to trim the effective travel back by up to 20mm. This creates a usable 20-40mm adjustable window for fine-tuning the end position at commissioning.
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Related AirTAC SAI Cylinders
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