This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X300-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X300-20 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 SIJ80X300-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-20 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 SAIJ80X300-20, 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 → SAIJ80X300-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-20
The AirTAC SIJ80X300-20 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with an 80mm bore and 300mm maximum extend. An external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 280-300mm window. It delivers 2513N push and 2268N pull at 0.5MPa via a G3/8 port. The exact drop-in replacement is the SAIJ80X300-20, matching the interface, force, and mounting.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, the safe working load is roughly 1508N (60% of the 2513N @0.5MPa figure), translating to a 128kg 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 but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X300-20 |
| 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 SAIJ80X300-20 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 SAIJ80X300-20 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 SIJ80X300-20
| 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 SIJ80X300-20 Is Used
Variable Depth Drilling
Tuning the 280-300mm extend on-site allows a drill head to accommodate multiple material thicknesses without reprogramming the motion controller.
Adjustable Transfer Pusher
Trimming the extend stroke by up to 20mm lets a transfer pusher adapt to varying package lengths on the fly, ensuring precise placement.
Carton Sealing Clamp
Field-adjusting the end position provides the exact clamping reach needed for different carton heights before the sealing head descends.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-20 with the SAIJ80X300-20
To replace the discontinued SIJ80X300-20, order the drop-in SAIJ80X300-20, reusing your existing FA, LB, or TC ISO 15552 mounts. When sizing both ways, the 63mm neighbor provides 1559N push @0.5MPa, while the 100mm bore offers 3927N. This 80mm bore gives 2513N push and 2268N pull @0.5MPa (4523N @0.9MPa). Choose the 20mm adjust window if you need 280-300mm field stroke tuning. Because this SKU has no -S suffix, it cannot accept a magnetic switch. For the 300mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X300-20
- ✓ 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 SIJ80X300-20 FAQ
Yes, the SIJ80X300-20 is discontinued. The exact drop-in replacement is the SAIJ80X300-20, which shares the same ISO 15552 interface, 80mm bore, 300mm stroke, 20mm adjust window, G3/8 port, and mounting options.
The 80mm bore delivers 2513N push and 2268N pull @0.5MPa, 3518N @0.7MPa, and 4523N @0.9MPa. The external stop screw provides a 20mm on-site trim window, making the usable extend stroke 280-300mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X300-20
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