This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X300-75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X300-75S 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 SIJ80X300-75S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X300-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X300-75S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-75S
The AirTAC SIJ80X300-75S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 300 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 225-300 mm window. The 80 mm bore uses a G3/8 port, a Ø25 mm rod, and 36 mm adjustable cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa, rising to 3518 N at 0.7 MPa. The exact drop-in replacement is the SAIJ80X300-75S, sharing the same interface, force, and mounting.
The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Computed buyer insight: safe working load is ~1508 N (60% of the 0.5 MPa push), allowing a 128 kg vertical lift with a 2:1 margin. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. The external stop sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-75S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X300-75S |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80X300-75S 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 SAIJ80X300-75S 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 SIJ80X300-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SIJ80X300-75S Is Used
Variable Pitch Push Stations
Tuning the extend stroke by up to 75 mm on-site allows a single 300 mm cylinder to adapt to multiple product lengths without changing the entire actuator assembly.
Adjustable Diverter Arms
Field-trimming the extend end position lets operators reposition diverter gates precisely along the belt without disassembling the ISO 15552 mounting brackets.
Custom Height Pallet Stops
The external stop screw provides a 225-300 mm usable stroke window, enabling quick changes to pallet stop heights in mixed-load packaging cells.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-75S with the SAIJ80X300-75S
To replace the discontinued SIJ80X300-75S, order the drop-in SAIJ80X300-75S, preserving the 80 mm bore, 300 mm stroke, 75 mm adjust window, G3/8 port, and -S magnet. When sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the 75 mm adjust window if your extend stroke needs field tuning between 225-300 mm. Mounting options include FA, LB, and TC brackets. Because the 300 mm stroke is long, verify side-load limits and add external guides to prevent rod bending. The stop screw sets end position but does not lock; for load holding on air loss, specify an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X300-75S
- ✓ 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 SIJ80X300-75S FAQ
Yes, the SIJ80X300-75S is discontinued. The exact drop-in replacement is the SAIJ80X300-75S. It shares the same ISO 15552 interface, 80 mm bore, 300 mm stroke, 75 mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
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 at 0.9 MPa, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw trims the extend stroke by up to 75 mm on-site, giving a 225-300 mm usable window. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
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