This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X80-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X80-30 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 SIJ80X80-30
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30 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 SAIJ80X80-30, 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 → SAIJ80X80-30
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30
The AirTAC SIJ80X80-30 is a discontinued double-acting, single-rod ISO 15552 adjustable-stroke cylinder. It features an 80 mm bore, a G3/8 port, and an external stop screw that lets you trim the extend stroke by up to 30 mm on-site (yielding a 50-80 mm usable extend window). The nominal 80 mm stroke is the maximum. The exact drop-in replacement is the SAIJ80X80-30, matching the bore, stroke, force, port, and mounting interface.
At 0.5 MPa this 80 mm bore delivers 2513 N push and 2268 N pull force (4523 N push at 0.9 MPa). The SAIJ upgrade utilizes an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. A computed buyer insight: safe working load is roughly 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift with a 2:1 margin. The stop screw sets the end position but is NOT a load lock; use SAIL or BSAI for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-30 |
| 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 SAIJ80X80-30 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 SAIJ80X80-30 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 SIJ80X80-30
| 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 SIJ80X80-30 Is Used
Press Fit Tuning
Allows operators to dial in the exact 50-80 mm extend position on-site for pressing bearings without machining hard stops.
Variable Diverter Stroke
Adjusts the extend length on a sorting lane to accommodate different package sizes using the 30 mm trim window.
Adjustable End Stop
Sets a precise physical end position for pallet positioning where a fixed 80 mm stroke would overrun the target.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30 with the SAIJ80X80-30
To replace the discontinued SIJ80X80-30, order the drop-in SAIJ80X80-30 (insert A after the leading S). 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 your field tuning requires trimming the extend stroke by up to 30 mm (usable 50-80 mm). Mounting hardware (Basic, FA, LB, TC) reuses the ISO 15552 interface. This SKU lacks the -S magnet and cannot take a magnetic switch. For strokes >=300 mm, guide the side-load to prevent rod binding. The external stop sets end position; it does not lock, so add an external rod lock for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X80-30
- ✓ 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 SIJ80X80-30 FAQ
Yes, the SIJ80X80-30 is discontinued. The exact drop-in replacement is the SAIJ80X80-30. It shares the identical ISO 15552 interface, 80 mm bore, 80 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, but adds 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 push at 0.9 MPa (max 513 kgf at 1.0 MPa). The external stop screw provides a 30 mm adjust window, shortening the extend stroke from the 80 mm maximum down to 50 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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