This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X800-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X800-50S 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 SIJ80X800-50S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X800-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X800-50S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50S
The AirTAC SIJ80X800-50S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 800 mm nominal stroke and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable extend range of 750-800 mm. The stop sets the end position and is not a load lock. This 80 mm bore uses a G3/8 port, a Ø25 mm rod, and 36 mm adjustable cushions. Force is 2513 N push and 2268 N pull at 0.5 MPa, reaching 4523 N at 0.9 MPa.
The exact drop-in replacement is the SAIJ80X800-50S, retaining the same ISO 15552 mounting interface, bore, stroke, adjust window, and force. The SAIJ family uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a 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. Note that a plain cylinder drifts on air loss; for held loads use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X800-50S |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80X800-50S 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 SAIJ80X800-50S 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 SIJ80X800-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SIJ80X800-50S Is Used
Variable-Length Pressing
Dialing in the exact contact distance on a press fixture. The 50 mm adjust window lets operators trim the extend stroke on-site without machining new spacers.
Adjustable Transfer Diverter
Positioning a diverter arm to accommodate varying package sizes. The external stop screw allows quick changes to the extend endpoint right on the conveyor line.
Tunable Pallet Stop
Accommodating different pallet depths in a handling line. The 750-800 mm usable stroke range provides flexibility for changing material dimensions on the floor.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50S with the SAIJ80X800-50S
To replace the discontinued SIJ80X800-50S, order the drop-in SAIJ80X800-50S, which matches the 80 mm bore, 800 mm stroke, 50 mm adjust window, G3/8 port, and ISO 15552 mounting. When sizing both ways, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa. Choose the 50 mm adjust window if your end-position needs field tuning between 750-800 mm. Mounting options include FA, LB, and TC. The -S suffix provides a piston magnet for CS1-B/DS1-B switches; the SAIJ replacement uses current AirTAC switches. For the 800 mm stroke, use external guides to prevent rod bending and manage side loads. The stop screw sets end position but does not lock the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X800-50S
- ✓ 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 SIJ80X800-50S FAQ
Yes, the SIJ80X800-50S is discontinued. The exact drop-in replacement is the SAIJ80X800-50S. It shares the same ISO 15552 interface, 80 mm bore, 800 mm stroke, 50 mm adjust window, G3/8 port, and mounting. The SAIJ features an upgraded two Y-shaped one-way 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. The external stop screw offers a 50 mm adjust window, allowing you to trim the extend stroke from the 800 mm maximum down to 750 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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