Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10S
The AirTAC SAIJ80X70-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N of push force at 0.5 MPa, featuring a 70mm nominal stroke that can be fine-tuned down by 10mm to achieve a precise 60-70mm usable travel window. This built-in adjustability eliminates the need to swap cylinders or add external stoppers during machine commissioning or product changeovers.
This configuration includes a SUS304 stainless steel rod (option B) for superior corrosion resistance and utilizes PT tapered port threads. It is factory-fitted with a magnet (-S) for seamless integration with AirTAC CMSE reed and DMSE electronic solid-state sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear stopper functions strictly as a travel end-point deceleration setter, not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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 SAIJ80BX70-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SAIJ80BX70-10S Is Used
End-Stop Calibration
Dial in the exact 60-70mm retraction point during machine commissioning without swapping out physical components or shimming mounts.
Product Changeover
Quickly adjust the stroke by up to 10mm on packaging lines when running a slightly shorter product profile.
High-Force Clamping
Leverage the 2513N push force at 0.5 MPa to secure heavy workpieces, using the rear stopper to fine-tune the clamp position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX70-10S the Right Cylinder?
Choose this 80mm bore cylinder when an application requires substantial thrust—such as 2513N push or 2268N pull at 0.5 MPa—combined with exact end-position tuning. If your setup demands less force, stepping down to a 63mm bore yields 1559N push force, whereas moving up to a 100mm bore provides 3927N. The adjustable 60-70mm window is ideal for dialing in precise strokes without mechanical rework.
Because the nominal stroke is 70mm, external side-load guides are less critical than on longer strokes, though the 25mm rod and M20x1.5 thread naturally handle high side loads. To replace an ISO 15552 cylinder, match the 80mm bore, 70mm stroke, 10mm adjustment, PT ports, and the -S magnet. Remember that the SAIJ rear adjuster and air cushions only set travel ends; they do not hold loads without live air. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder, or an external rod lock.
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 SAIJ80BX70-10S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 10mm. This creates a 60-70mm adjustable travel window, allowing you to fine-tune the end position at commissioning without changing the cylinder.
At 0.5 MPa operating pressure, it provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
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