Airtac SAIJ40 Adjustable Cylinder SAIJ40AX35-30
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX35-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 35mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke35 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 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 SAIJ40 Adjustable Cylinder SAIJ40AX35-30
Its defining feature is the 30mm adjustment range, which creates a highly versatile 5 to 35mm usable travel window for short-stroke applications. This allows operators to dial in exact end positions during commissioning without swapping hardware.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance, paired with PT tapered ports. It retains the standard extruded aluminum barrel with sensor grooves on both sides, though it is supplied without a magnet. The rear stopper fine-tunes the retract position but does not lock the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX35-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX35-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 SAIJ40 Adjustable Cylinder SAIJ40AX35-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | 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 SAIJ40 Adjustable Cylinder SAIJ40AX35-30 Is Used
Variable Stroke Clamping
Dial in the exact clamping depth for parts of different heights using the 5 to 35mm travel window without changing the cylinder.
Machine Changeover
Speed up product line changeovers by turning the rear adjuster to set new retract endpoints on the fly during commissioning.
Short-Stroke Ejection
Precisely eject small components from a fixture, tuning the push distance to prevent parts from flying off the station.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX35-30 the Right Cylinder?
Select this 40mm bore when you need precise positioning of short-stroke tooling, such as clamping or ejecting parts of varying sizes. The adjustable end-stop is ideal for machine setups that undergo frequent product changeovers, replacing the need for fixed-stroke SAI cylinders.
When matching an ISO 15552 replacement, verify the 35mm nominal stroke, 30mm adjustment code, PT port thread, and the absence of a magnet. Because the stroke is under 300mm, side-load stress is minimal, but external guides are still recommended for heavy off-center loads. For applications requiring the load to be held mechanically without air pressure, consider the SAIL or BSAI series instead of relying on this adjuster.
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 SAIJ40 Adjustable Cylinder SAIJ40AX35-30 FAQ
At a maximum 1.0 MPa, it can deliver up to 128 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 30mm. This creates a usable travel window of 5 to 35mm, allowing you to fine-tune the end position without adding external stops.
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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.
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Most inquiries answered within 7-8 hours.
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