Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-40S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX50-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAIJ100 Adjustable Cylinder SAIJ100AX50-40S
The AirTAC SAIJ100X50-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel end-point without swapping out the unit. The integrated rear stopper creates a usable travel window of 10 to 50mm from the 50mm nominal stroke, giving you exact control over end-of-stroke positioning during commissioning.
This adjustable-stroke design eliminates the need to bolt on external stops when tailoring machine movements. The extruded aluminum barrel includes sensor grooves on both sides to accommodate CMSE reed or DMSE electronic solid-state switches. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. The 25mm piston rod and M20x1.5 rod thread provide high rigidity, handling greater side loads than smaller bores while maintaining a 30-800mm/s operating speed range.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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 SAIJ100 Adjustable Cylinder SAIJ100AX50-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX50-40S Is Used
Product Changeover
Dial in the 10 to 50mm travel window on the fly to accommodate different product lengths without changing the cylinder.
End-Stop Tuning
Use the rear adjusting screw to precisely set the final retract position during machine commissioning, avoiding external stop blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-40S the Right Cylinder?
Choose this 100mm bore cylinder when your application requires substantial force—stepping down to an 80mm bore yields 2513N at 0.5 MPa, which may be insufficient for heavier fixtures. The SAIJ100X50-40-S is specifically selected when you need variable end-stops for frequent product-size changeovers rather than relying on a fixed-stroke SAI cylinder. Because the stroke is only 50mm, side-loading risks are minimal, but always ensure the load is guided to prevent binding.
For exact ISO 15552 dimensional interchangeability, match the 100mm bore, 50mm nominal stroke, 40mm adjustment range, PT tapered port threads, and the -S magnet option. Remember that the rear adjuster functions strictly as a mechanical stop and deceleration aid; it does not hold the load without live air pressure. If your setup requires true load-holding without continuous air, consider an AirTAC SAIL (air-released lock) or BSAI (clamp-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 SAIJ100 Adjustable Cylinder SAIJ100AX50-40S FAQ
The rear adjuster acts as an external stopper that shortens the effective stroke. For this model, the 50mm nominal stroke can be dialed back by up to 40mm, resulting in a usable travel window of 10 to 50mm depending on your setup.
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