Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX175-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- 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 SAIJ80 Adjustable Cylinder SAIJ80BX175-20
The AirTAC SAIJ80X175-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 155-175 mm usable travel window, allowing you to dial back the nominal 175 mm stroke by up to 20 mm during commissioning without adding external stops.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and uses a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to fine-tune the end position; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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 SAIJ80 Adjustable Cylinder SAIJ80BX175-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX175-20 Is Used
Machine Commissioning
Fine-tune the retract end-position within the 155-175 mm window during setup to perfect product handling without swapping cylinders.
Product Changeover
Quickly adjust the stroke by up to 20 mm to accommodate different package sizes on a packaging line, reducing downtime.
Variable End-Stop Forming
Use the built-in rear stopper to set precise lower-die positions in light forming or clamping tasks where exact travel limits vary.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, offering flexibility that a fixed-stroke SAI cannot match. If your process needs to hold a load securely without continuous air pressure, consider the SAIL or BSAI series instead.
This cylinder accepts PT port threads and supports the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Since the stroke is under 300 mm, side-load stress on the M20x1.5 rod thread is minimized, though an external guide is still recommended for heavy lateral loads.
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 SAIJ80 Adjustable Cylinder SAIJ80BX175-20 FAQ
At the maximum pressure of 1.0 MPa, the push force reaches 5026 N.
The rear adjuster screw allows you to shorten the effective stroke from the nominal 175 mm down to 155 mm. This creates a 20 mm tuning window for exact end-position setting without needing external stops or a different cylinder.
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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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