Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX50-20 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 SAIJ100AX50-20
The AirTAC SAIJ100X50-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 20mm of travel reduction. This creates a usable 30-50mm window, allowing precise end-position tuning during commissioning without adding external stops.
The piston rod is constructed from SUS420J2 stainless steel (code A) for enhanced corrosion resistance, and the fluid port utilizes a PT tapered thread. It supports speeds from 30-800mm/s and includes variable air cushions at both ends to decelerate the load. The adjuster functions strictly as a travel stop to set deceleration points, not as a lock, so live air pressure is required to hold the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-20 |
|---|---|
| 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 SAIJ100AX50-20
| 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 SAIJ100AX50-20 Is Used
Machine Setup Tuning
Dial in the exact 30-50mm end position during initial commissioning to align heavy stamping or press tools without machining external stoppers.
Product Changeover
Quickly adjust the retract distance by up to 20mm to accommodate slightly different product lengths on an automated assembly line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-20 the Right Cylinder?
The adjustable stroke is chosen over a fixed SAI cylinder when fine-tuning the retract position is necessary for product changeovers or machine setup.
When replacing an ISO 15552 cylinder, match the 100mm bore, 50mm stroke, 20mm adjustment, PT port thread, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). This unit omits the -S magnet, so it does not support CMSE or DMSE sensors without modification. For applications requiring position holding without live air, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a brake.
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 SAIJ100AX50-20 FAQ
At 0.9MPa, the push force increases to 7068N.
The rear adjuster screw allows you to shorten the nominal 50mm stroke by up to 20mm, creating a usable travel window of 30-50mm. This lets you set the exact retract end-position during machine setup without replacing the cylinder.
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Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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