Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX35-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 35mm 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
- Stroke35 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 SAIJ80BX35-20
The AirTAC SAIJ80X35-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. This built-in adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
Built with a SUS304 stainless steel rod (code B) and a PT tapered G3/8 port, this unit handles operating speeds of 30-800 mm/s. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. The extruded aluminum barrel includes dual-side sensor grooves for integrating CMSE reed or DMSE electronic switches if a magnet is added later.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 35 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 SAIJ80BX35-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×35 | 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 SAIJ80BX35-20 Is Used
Machine Changeover
Dial in the exact retract distance up to 20mm during product size transitions without replacing the cylinder or bolting on external stoppers.
End-Position Tuning
Fine-tune the final end-stop during commissioning to compensate for mechanical tolerance variations in the fixture or tooling.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20 the Right Cylinder?
The adjustable stroke is ideal for machine changeovers, allowing you to fine-tune the retract end-position without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, select a SAIL or BSAI series cylinder instead, as the SAIJ adjuster is not a lock.
To match this ISO 15552 interchangeable cylinder for a retrofit, specify the 80mm bore, 35mm stroke, 20mm adjustment range, PT G3/8 port, and your required mounting bracket. Because the 35mm stroke is relatively short, side-load concerns are minimal, but the 25mm rod diameter and M20x1.5 rod thread still handle substantial side loads well compared to smaller bores.
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 SAIJ80BX35-20 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 20mm. This creates a usable travel window of 15-35mm for fine-tuning the end position at commissioning without changing the cylinder itself.
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.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.