Airtac SAIJ50 Adjustable Cylinder SAIJ50BX115-100
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX115-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 115mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke115 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- 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 SAIJ50 Adjustable Cylinder SAIJ50BX115-100
The AirTAC SAIJ50X115-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 15-115mm. Delivering 982N of push force at 0.5MPa, it is engineered for applications requiring exact end-position tuning without swapping hardware. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and operates with PT tapered port threads (G1/4). The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract stroke, decelerating the load alongside the built-in air cushions, but it does not lock the position without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX115-100 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX115-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 115 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX115-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×115 | 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 SAIJ50 Adjustable Cylinder SAIJ50BX115-100 Is Used
Machine Setup & Changeover
Dial in the exact 15-115mm travel during commissioning or product size changes without replacing the cylinder or adding external stopper blocks.
Variable End-Positioning
Fine-tune the retract stroke by up to 100mm to accommodate multiple product lengths on a single shared fixture.
Corrosive Environment Automation
Leverage the SUS304 stainless steel rod for reliable actuation in packaging or food-grade lines where moisture and washdowns are common.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX115-100 the Right Cylinder?
Choose this 50mm bore when you need 982N of thrust at 0.5MPa (1374N at 0.7MPa) with on-the-fly stroke trimming. If your application requires less force, the 40mm bore offers 628N; for heavier loads, the 63mm bore provides 1559N. The 100mm adjustment range is perfect for product changeovers, allowing you to shift the end-stop dynamically rather than installing fixed external stops.
For an exact ISO 15552 replacement, match the 50mm bore, 115mm stroke, PT port thread, and SUS304 rod material. Note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. If your system requires fail-safe load holding without continuous air pressure, consider the SAIL or BSAI series instead, as this adjuster is a stop, 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 SAIJ50 Adjustable Cylinder SAIJ50BX115-100 FAQ
The nominal stroke is 115mm, but the rear adjuster allows you to shorten the effective travel by up to 100mm, creating a usable stroke window of 15-115mm for precise end-position tuning.
At 0.5MPa operating pressure, it provides 982N of push force and 825N of pull force. At the maximum 1.0MPa pressure, it delivers up to 200 kgf of push force.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
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.
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