Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S
The AirTAC SAIJ100X50-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 50 mm stroke that can be fine-tuned down by up to 30 mm, yielding a highly versatile 20-50 mm usable travel window for precise end-position calibration. Delivering 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa, it handles heavy actuation tasks with ease. The standard extruded aluminum barrel includes sensor grooves on both sides, and this specific configuration features a SUS304 stainless steel rod for superior corrosion resistance.
This unit includes a magnet for position sensing, operating seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster functions strictly as a mechanical stop to dial in the travel limit during commissioning or product changeovers, ensuring you never need to swap the cylinder or bolt on external stops. It is important to note that this adjuster, alongside the variable air cushions at both ends, only decelerates the travel end and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S |
|---|---|
| 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S
| 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 SAIJ100BX50-30S Is Used
Product Changeover Calibration
Dial in the 20-50 mm travel window rapidly during line changeovers to accommodate different package sizes without replacing the actuator.
Heavy Press Positioning
Leverage the 7068 N push force at 0.9 MPa to securely press components, using the rear stop to guarantee precise final depth.
Variable End-Stop Assembly
Use the 30 mm adjustment range to fine-tune the retraction end-point during machine setup, perfecting the pickup distance for delicate parts.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX50-30S the Right Cylinder?
Select this 100 mm bore actuator when your application demands high thrust alongside variable end-stop positioning. If you need less force, stepping down to the 80 mm bore yields 2513 N of push force at 0.5 MPa, but the SAIJ100X50-30-S guarantees 3927 N at that same pressure, scaling up to 7068 N at 0.9 MPa. The 25 mm rod diameter and M20x1.5 thread provide robust resistance to side loads, though any long unsupported stroke still requires an external guide.
This model is equipped with PT tapered ports (G1/2) and utilizes the SAIJ reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. For load-holding requirements without live pressure, this cylinder is not a lock; you should explore the AirTAC SAIL pneumatic lock or BSAI clamp-lock series instead. For a fixed end-position alternative without the adjuster, the standard SAI cylinder shares the exact ISO 15552 mounting interface dimensions.
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 SAIJ100BX50-30S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster acts as a mechanical stop that allows you to trim the 50 mm nominal stroke back by up to 30 mm, creating a 20-50 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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