This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X450-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X450-100 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 SIJ80X450-100
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-100 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 SAIJ80X450-100, 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 → SAIJ80X450-100
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-100
The AirTAC SIJ80X450-100 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 350-450 mm extension from the 450 mm nominal maximum. 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.
Because this SIJ model is end-of-life, the exact drop-in replacement is the SAIJ80X450-100, retaining the same interface, force, and adjust window. The SAIJ family features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. As a computed buyer insight, the safe working load is roughly 1508 N (60% of the 2513 N push at 0.5 MPa), translating to a vertical lift capacity of about 128 kg with a 2:1 margin. Note this SKU lacks a magnet and cannot take a switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-100 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X450-100 |
| 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 SAIJ80X450-100 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 SAIJ80X450-100 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 SIJ80X450-100
| 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 SIJ80X450-100 Is Used
Variable Stroke Pressing
Trimming the extend stroke by up to 100 mm on-site allows precise setup for pressing parts of varying heights without machining custom spacers.
Adjustable Transfer Pusher
A 450 mm nominal stroke can be dialed back to 350 mm to tune the pusher reach for different pallet widths on a transfer line.
Variable Depth Diverter
Field-tuning the extend end position lets a single diverter accommodate multiple box sizes on a sorting conveyor without changing the cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-100 with the SAIJ80X450-100
To replace the discontinued SIJ80X450-100, order the drop-in SAIJ80X450-100, matching the 80 mm bore, 450 mm stroke, 100 mm adjust window, and G3/8 port. If sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Select the 100 mm adjust window when your setup requires trimming the extend stroke by up to 100 mm on-site. Mounting interfaces include Basic, FA, LB, and TC. This non-S SKU has no magnet and cannot support legacy CS1-B/DS1-B sensors. Because the 450 mm stroke exceeds 300 mm, account for side-load and rod-bending by using external guides. The stop screw sets the end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X450-100
- ✓ 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 SIJ80X450-100 FAQ
Yes, the SIJ80X450-100 is discontinued. The exact drop-in replacement is the SAIJ80X450-100, which shares the same ISO 15552 mounting interface, 80 mm bore, 450 mm stroke, 100 mm adjust window, and G3/8 port. The SAIJ family also uses an upgraded 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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw window is 100 mm, allowing you to shorten the 450 mm nominal extend stroke down to 350 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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