Airtac SAIJ40 Adjustable Cylinder SAIJ40AX200-75
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX200-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 200mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke200 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 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 SAIJ40 Adjustable Cylinder SAIJ40AX200-75
The AirTAC SAIJ40X200-75 is a double-acting ISO 15552 profile cylinder featuring a 40 mm bore and a 200 mm nominal stroke. A rear-mounted adjusting screw allows you to trim the effective travel back by up to 75 mm, providing a usable window of 125 to 200 mm for precise end-position tuning at commissioning.
This variant is built with an SUS420J2 stainless steel rod (code A) for improved corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific unit is configured without a magnet for position sensing. The rear adjuster acts strictly as a travel stop to set deceleration and cannot hold a load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX200-75 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX200-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 SAIJ40 Adjustable Cylinder SAIJ40AX200-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SAIJ40 Adjustable Cylinder SAIJ40AX200-75 Is Used
Product Changeover
Dial in the 125 to 200 mm travel window during format changes on packaging lines, using the rear stopper to adapt to different carton sizes instantly.
End-Position Tuning
Fine-tune the final retract position during machine commissioning without machining external stop blocks or altering the ISO 15552 mounting footprint.
Variable End Stops
Provide adjustable physical limits for assembly presses, allowing operators to modify the 40 mm bore stroke length on the fly to suit varying component heights.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX200-75 the Right Cylinder?
If your setup requires less force, stepping down to a 32 mm bore yields 402 N; if you need significantly more thrust, a 63 mm bore provides 1559 N. Because the nominal stroke is 200 mm, an external guide is recommended to manage side loading on the 16 mm rod during extended travel.
When specifying a replacement, verify the 200 mm stroke, 75 mm adjustment range, PT port threads, and the absence of a magnet (-S). Remember that the rear screw is a stop, not a lock; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder. SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ40 Adjustable Cylinder SAIJ40AX200-75 FAQ
At 0.7 MPa, the push force increases to 879 N.
The rear adjuster screw allows you to shorten the 200 mm nominal stroke by up to 75 mm, creating a usable travel window of 125 to 200 mm. This stopper sets the travel end but does not lock the load without continuous air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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