This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X75-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X75-40S in place of this model. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X75-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X75-40S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S
The AirTAC SIJ80X75-40S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued and fully replaced by the drop-in SAIJ80X75-40S. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable 35-75 mm window from the 75 mm nominal maximum. The stop sets the end position but is not a load lock. This 80 mm bore uses a G3/8 port, a Ø25 mm rod, and 36 mm adjustable cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa.
The SAIJ replacement retains the exact ISO 15552 mounting interface, force, and adjust window, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Computed buyer insight: safe working load is about 1508 N (60% of the 2513 N push at 0.5 MPa), yielding a 128 kg vertical lift capacity with a 2:1 margin. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches; the SAIJ uses current switches. A plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X75-40S |
| Bore size | Ø80 mm |
| Stroke | 75 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ80X75-40S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAIJ80X75-40S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S Is Used
Multi-Position Clamping
Adjusts the extend stroke on-site by up to 40 mm to clamp parts of varying widths without repositioning the entire fixture.
Variable Length Diverter
Tunes the pusher stroke from 35 to 75 mm on packaging lines to deflect different carton sizes accurately from a single station.
Stroke-Limited Forming
Sets a precise mechanical end-stop for light press tasks, ensuring the toolface never over-travels past the 75 mm maximum.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S with the SAIJ80X75-40S
To replace the discontinued SIJ80X75-40S, order the exact drop-in SAIJ80X75-40S, keeping the 40 mm adjust window (35-75 mm usable extend). Size both ways if re-engineering: the 63 mm neighbor yields 1559 N push at 0.5 MPa, while the 100 mm bore provides 3927 N. Reuse existing FA, LB, or TC ISO 15552 mounts without machining. The -S magnet supports legacy CS1-B/DS1-B sensors. For this 75 mm stroke, side-load is minimal, but for any stroke >=300 mm, calculate guide rod deflection to prevent seal wear. Remember the stop screw sets end position only; it is not a lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X75-40S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-40S FAQ
Yes, the SIJ80X75-40S is discontinued. The exact drop-in replacement is the SAIJ80X75-40S, offering the same ISO 15552 interface, 75 mm stroke, 40 mm adjust window, and G3/8 port. The SAIJ adds an upgraded two Y-shaped one-way piston seal for longer life.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa. The external stop screw trims the extend stroke by up to 40 mm on-site, yielding a 35-75 mm usable window. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X75-40S
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