This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X75-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X75-30 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 SIJ80X75-30
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-30 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 SAIJ80X75-30, 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 → SAIJ80X75-30
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-30
The AirTAC SIJ80X75-30 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 75 mm nominal extend stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 45-75 mm window. The 80 mm bore uses a G3/8 port, a Ø25 mm rod with an M20x1.5 thread, and 36 mm adjustable cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa.
Because SIJ is end-of-life, the exact drop-in replacement is the SAIJ80X75-30, retaining the same ISO 15552 mounting interface, bore, and force. The SAIJ upgrade features a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a safe working load is roughly 1508 N (60% of the 0.5 MPa push), equating to a 128 kg vertical lift with a 2:1 margin. Note this non-magnetic SKU lacks a sensor groove, and the stop screw sets end position but is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-30 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X75-30 |
| 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 SAIJ80X75-30 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 SAIJ80X75-30 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 SIJ80X75-30
| 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 SIJ80X75-30 Is Used
Press Fit Tuning
Allows operators to trim the extend stroke by up to 30 mm on-site to dial in exact press-fit depths for bearings without swapping cylinders.
Variable Length Diverter
Provides a 45-75 mm extend window to deflect varying package sizes on a conveyor line, adjusting the stop screw on the fly.
Adjustable End Stop
Sets precise end positions for pallet stops where the nominal 75 mm stroke needs occasional shortening to accommodate different pallet footprints.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-30 with the SAIJ80X75-30
To replace the discontinued SIJ80X75-30, order the drop-in SAIJ80X75-30, which preserves the G3/8 port, 75 mm nominal stroke, 30 mm adjust window, and FA/LB/TC mount compatibility. 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 push at 0.5 MPa. Choose the 30 mm adjust window if your field tuning requires trimming the extend stroke by up to 30 mm on-site. This SKU has no -S magnet and cannot accept a magnetic switch. Since the 75 mm stroke is under 300 mm, side-load rod deflection is minimal. Remember the stop screw sets end position but does not lock; for load holding on air loss, use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X75-30
- ✓ 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 SIJ80X75-30 FAQ
Yes, the SIJ80X75-30 is discontinued. The exact drop-in replacement is the SAIJ80X75-30, which shares the identical ISO 15552 interface, 80 mm bore, 75 mm stroke, 30 mm adjust window, and G3/8 port. The SAIJ family also upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
The 80 mm bore delivers 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 provides a 30 mm adjust window, meaning the usable extend stroke is 45-75 mm. The stop sets end position but is not a load lock; use an external rod lock for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X75-30
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