This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X400-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X400-100 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 SIJ80X400-100
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X400-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 400mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X400-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X400-100
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X400-100
The AirTAC SIJ80X400-100 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ80X400-100. It uses an external stop screw to trim the extend stroke by up to 100 mm on-site, yielding a usable 300-400 mm extend out of the 400 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa via its G3/8 port. The SAIJ drop-in keeps the same interface, force, and mounting.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Based on the 0.5 MPa push force, the safe working load is roughly 1508 N, translating to a 128 kg vertical lift with a 2:1 margin. This SKU lacks a magnet (-S), so it cannot accept a magnetic switch. The stop screw sets end position only; it is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X400-100 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X400-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X400-100 |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAIJ80X400-100 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 SAIJ80X400-100 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 SIJ80X400-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SIJ80X400-100 Is Used
Variable Depth Drilling
Adjusts the extend stroke by up to 100 mm on-site to accommodate multiple material thicknesses on a single fixture without swapping cylinders.
Adjustable Diverter Arms
Tunes the 400 mm extend stroke precisely to the product width on the line, allowing rapid changeovers between different package sizes.
Tiered Pallet Stops
Trims the extend position dynamically to interact with varying pallet heights or partial loads, ensuring accurate placement without reprogramming.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X400-100 with the SAIJ80X400-100
To replace the SIJ80X400-100, use the SAIJ80X400-100 drop-in, retaining the 400 mm nominal stroke and 100 mm adjust window. 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. Mounting interchange is maintained via the ISO 15552 interface using FA, LB, or TC brackets. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. For the 400 mm stroke, use external guides to mitigate rod-bending and side-load risks. The stop screw sets end position and is not a lock; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X400-100
- ✓ 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 SIJ80X400-100 FAQ
Yes, the SIJ80X400-100 is discontinued. The exact drop-in replacement is the SAIJ80X400-100, which shares the same ISO 15552 interface, 80 mm bore, 400 mm stroke, 100 mm adjust window, G3/8 port, and mounting options.
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 513 kgf theoretical max at 1.0 MPa. The external stop screw allows trimming the extend stroke by up to 100 mm on-site (usable extend 300-400 mm). The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
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