This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X600-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X600-50S 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 SIJ80X600-50S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X600-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X600-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X600-50S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X600-50S
The AirTAC SIJ80X600-50S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 600 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 550-600 mm window. The 80 mm bore features a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa. The exact drop-in replacement is the SAIJ80X600-50S, matching the interface, force, and porting.
The SAIJ successor retains the ISO 15552 mounting interface for direct reuse of your FA, LB, and TC brackets while upgrading to a 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. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. Remember the stop screw sets end position; it is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X600-50S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X600-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X600-50S |
| Bore size | Ø80 mm |
| Stroke | 600 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 SAIJ80X600-50S 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 SAIJ80X600-50S 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 SIJ80X600-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×600 | 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 SIJ80X600-50S Is Used
Variable-Length Pressing
Dialing in the exact contact height on assembly presses. The 50 mm stop screw window trims the 600 mm extend stroke on-site to accommodate material thickness variations without re-mounting the cylinder.
Adjustable Transfer Diverter
Routing different package sizes on a conveyor line. The external stop allows operators to shorten the extend stroke precisely, preventing over-travel damage to varying box widths while maintaining ISO 15552 mounting.
Tiered Pallet Positioning
Engaging varying pallet stack heights. The adjustable end-position lets a single 80 mm bore cylinder adapt its reach within the 550-600 mm window, delivering up to 4523 N of push force at 0.9 MPa for secure placement.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X600-50S with the SAIJ80X600-50S
To replace the discontinued SIJ80X600-50S, install the drop-in SAIJ80X600-50S directly—no redesign needed. If resizing, neighboring bores offer different forces at 0.5 MPa: the 63 mm yields 1559 N push, while the 100 mm provides 3927 N. Select the 50 mm adjust window if your end-position variance is under 50 mm; for larger trims, choose a different nominal stroke. The -S magnet enables position sensing. Because the 600 mm stroke exceeds 300 mm, account for rod-bending and side-load risks by using external guides to prevent premature seal wear. For load-holding during air loss, do not rely on the stop screw or cushions; instead, specify an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X600-50S
- ✓ 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 SIJ80X600-50S FAQ
Yes, the SIJ80X600-50S is discontinued. The exact drop-in replacement is the SAIJ80X600-50S. It shares the same ISO 15552 interface, 80 mm bore, 600 mm stroke, 50 mm adjust window, G3/8 port, and mounting options, but 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 at 1.0 MPa. The external stop screw window is 50 mm, allowing you to trim the extend stroke from the 600 mm maximum down to 550 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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