This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X80-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X80-20 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 SIJ80X80-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X80-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X80-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-20
The AirTAC SIJ80X80-20 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 20 mm on-site, yielding a usable 60-80 mm extension. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, features a 25 mm rod, M20x1.5 thread, and a G3/8 port. The exact drop-in replacement is the SAIJ80X80-20, retaining the same interface, force, and adjust window.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Computed buyer insight: safe working load is roughly 1508 N (60% of the 0.5 MPa push), allowing a 128 kg vertical lift with a 2:1 margin. Note this non-magnetic SKU cannot take a switch. The stop screw sets end position but is not a lock; for load-holding without live air, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-20 |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAIJ80X80-20 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 SAIJ80X80-20 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 SIJ80X80-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 SIJ80X80-20 Is Used
Press Fit Dial
A press station requiring precise 60-80 mm extend positioning that uses the 20 mm external stop screw to dial in the exact seating depth on-site.
Transfer Diverter
A package routing gate that uses the adjustable end-stop to tune the extend stroke, accommodating varying product widths without swapping cylinders.
Pallet Stopper
An end-of-line pallet stop that relies on the 2513 N push force at 0.5 MPa and the field-adjustable stroke to handle varying pallet overhangs safely.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-20 with the SAIJ80X80-20
To replace the discontinued SIJ80X80-20, order the drop-in SAIJ80X80-20, reusing your existing FA, LB, or TC ISO 15552 mounts. When sizing both ways: the 63 mm bore neighbor yields 1559 N push at 0.5 MPa, while the 100 mm bore provides 3927 N. This 80 mm bore gives 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N at 0.9 MPa. The 20 mm adjust window is ideal if your end-stop needs minor field tuning. As this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For stroke lengths of 300 mm or more, verify your side-load limits to prevent rod distortion.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X80-20
- ✓ 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 SIJ80X80-20 FAQ
Yes, the SIJ80X80-20 is discontinued. The exact drop-in replacement is the SAIJ80X80-20, which matches the ISO 15552 interface, 80 mm bore, 80 mm stroke, 20 mm adjust window, G3/8 port, and mounting hardware. The SAIJ family also adds an upgraded two Y-shaped one-way 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, with a theoretical max of 513 kgf. The external stop screw offers a 20 mm adjust window, making the usable extend stroke 60-80 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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