Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX40-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 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 SAIJ80BX40-30S
The AirTAC SAIJ80X40-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a SUS304 stainless steel rod and a PT tapered port. By dialing the external stopper, you can trim the 40 mm nominal stroke back by up to 30 mm, creating a precise 10-40 mm usable travel window for exact end-position tuning.
This bore size delivers a robust 2268 N pull force at 0.5 MPa and includes variable air cushions at both ends to manage kinetic energy. The integrated magnet (-S) supports CMSE reed and DMSE electronic sensors, fitting neatly into the extruded aluminum barrel grooves. The adjuster functions purely as a mechanical stop, so live air pressure is required to hold the load in place.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 SAIJ80BX40-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SAIJ80BX40-30S Is Used
Variable End-Stop Tuning
Dial in the exact 10-40 mm travel window during commissioning to perfectly strike a workpiece without re-engineering the fixture.
Product Changeover
Quickly adapt the cylinder stroke on a packaging line when switching to a different carton size, saving setup time.
Soft Positioning
Use the rear stopper alongside the double-end air cushions to fine-tune the end-of-travel deceleration for sensitive tooling.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30S the Right Cylinder?
Choose this 80 mm bore when an application requires more force than a 63 mm cylinder (1402 N pull) but without the bulk of a 100 mm unit. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers, removing the need to swap cylinders or bolt on external stops. For load-holding without continuous air pressure, use a SAIL or BSAI variant instead of relying on the rear stopper. To match this ISO 15552 footprint, specify an 80 mm bore, 40 mm stroke, 30 mm adjustment, PT port, SUS304 rod, and a -S magnet.
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 SAIJ80BX40-30S FAQ
The rear adjuster acts as a mechanical stop that shortens the 40 mm nominal stroke by up to 30 mm, giving a usable travel window of 10 to 40 mm. It does not lock the load, so live air is needed to maintain position.
It can deliver up to 513 kgf at a maximum 1.0 MPa operating pressure.
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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