Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke155 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 SAIJ80X155-20
The AirTAC SAIJ80X155-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 135 to 155 mm, allowing you to dial back the nominal 155 mm stroke by up to 20 mm during commissioning. Delivering a robust 2268 N pull force at 0.5 MPa, it handles heavy-duty positioning with ease.
This extruded aluminum profile cylinder includes variable air cushions at both ends and utilizes a PT tapered G3/8 port. The 25 mm carbon steel rod with an M20x1.5 thread provides excellent side-load capacity. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SAIJ80X155-20 Is Used
Machine Changeovers
Dial in the exact end-of-stroke position within the 135-155 mm window during product size transitions without physically replacing the actuator.
Heavy Positioning
Leverage the 2268 N pull force to move heavy fixtures, using the rear stopper to precisely set the retraction limit at commissioning.
Assembly Line Stops
Set variable retract stops for multi-format assembly lines, relying on the robust 25 mm rod to absorb end-impact shocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-20 the Right Cylinder?
Choose this 80 mm bore when your application requires more force than a 63 mm cylinder, which provides 1402 N pull at 0.5 MPa, but you do not need the massive 3681 N pull of a 100 mm unit. The adjustable stroke is ideal for product-size changeovers, letting you fine-tune the end position without swapping the cylinder or adding external stops. To match this ISO 15552 replacement, specify bore 80, stroke 155, 20 mm adjustment, PT G3/8 port, and your required mounting. Since the rear adjuster is a travel stop and not a lock, it will not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series 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 SAIJ80 Adjustable Cylinder SAIJ80X155-20 FAQ
The rear adjuster screw acts as a mechanical stopper, allowing you to shorten the effective travel from 155 mm down to a minimum of 135 mm, providing a 20 mm tuning window.
At 0.5 MPa operating pressure, it provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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