This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X450-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X450-30 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 SIJ80X450-30
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 450mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X450-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X450-30
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-30
The AirTAC SIJ80X450-30 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 450 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 420-450 mm window. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, features a 25 mm rod, M20x1.5 thread, G3/8 port, and 36 mm adjustable cushions. The SIJ is discontinued; the exact drop-in replacement is the SAIJ80X450-30, retaining the same interface, force, and adjustability.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. For sizing, a safe working load is roughly 1508 N (60% of the 2513 N push at 0.5 MPa), yielding a 128 kg vertical lift with a 2:1 margin. Note this SKU lacks a -S magnet and cannot take a switch. The stop screw sets end position only; it is not a load lock. For held loads use SAIL or BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-30 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X450-30 |
| Bore size | Ø80 mm |
| Stroke | 450 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 SAIJ80X450-30 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 SAIJ80X450-30 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 SIJ80X450-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×450 | 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 SIJ80X450-30 Is Used
Press Fit Tuning
Allows on-site extend stroke trimming of up to 30 mm to dial in precise press-fit depths without machining spacer plates.
Variable Transfer Stops
Adjusts the end-stop position for different package sizes on a 450 mm stroke, ensuring accurate placement on the line.
Pallet Positioning
Fine-tunes the extend end position by up to 30 mm to accommodate varying pallet tolerances during loading.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-30 with the SAIJ80X450-30
To replace the discontinued SIJ80X450-30, map directly to the SAIJ80X450-30 (insert A after S), keeping the 80 mm bore, 450 mm stroke, 30 mm adjust window, and G3/8 port. 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 30 mm adjust window if you need 420-450 mm end-position tuning. Mounting reuses ISO 15552 interface dimensions with FA, LB, or TC brackets. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For the 450 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X450-30
- ✓ 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 SIJ80X450-30 FAQ
Yes, the SIJ80X450-30 is discontinued. The exact drop-in replacement is the SAIJ80X450-30, which shares the identical ISO 15552 interface, 450 mm stroke, 30 mm adjust window, and G3/8 port. The SAIJ also features 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. The external stop screw allows trimming the extend stroke by up to 30 mm on-site (usable 420-450 mm). The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
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