Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm 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
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40S
The AirTAC SAIJ80X700-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 660 to 700 mm, allowing you to dial back the nominal stroke by up to 40 mm. Delivering 4523 N of push force at 0.9 MPa, it is built to handle demanding actuation tasks.
This variant includes an SUS420J2 stainless steel rod (code A) for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, and because this is a -S model, it includes a magnet ready for CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to set the end position and does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80AX700-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SAIJ80AX700-40S Is Used
Product Changeover Adjustment
Quickly modify the retract end position by up to 40 mm when switching product sizes on a packaging line, eliminating the need to physically swap cylinders.
Machine Setup Fine-Tuning
Dial in the exact 660-700 mm travel distance during commissioning to perfect end-of-stroke positioning without installing bulky external stopper blocks.
Heavy-Duty Forming Stops
Leverage the 4523 N push force at 0.9 MPa for pressing or forming operations, using the rear stopper to precisely set the material engagement depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-40S the Right Cylinder?
Choose this 80 mm bore when you need substantial thrust—stepping down to a 63 mm bore drops your 0.5 MPa push force to 1559 N, while this 80 mm bore provides 2513 N at the same pressure. The 40 mm adjustment range is ideal for machine setup and product changeover, letting you fine-tune the retract end position at commissioning without swapping out the cylinder or adding external stops. For load-holding applications without live air, consider the SAIL or BSAI series, as the SAIJ adjuster is only a travel stop.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 700 mm stroke, 40 mm adjustment, PT port thread, and -S magnet. Because the stroke is 700 mm, the 25 mm rod diameter and M20x1.5 rod thread provide robust resistance to side loads, though long unsupported strokes still require an external guide. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80AX700-40S FAQ
At 0.9 MPa operating pressure, this 80 mm bore cylinder provides 4523 N of push force and 4070 N of pull force. At the maximum 1.0 MPa pressure, it achieves 513 kgf.
The external rear adjuster allows you to shorten the effective stroke from 700 mm down to 660 mm. It acts as a mechanical stop to fine-tune the end position during commissioning; it is not a lock and will not hold the load without continuous air pressure.
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