This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X700-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X700-50S 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 SIJ80X700-50S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X700-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X700-50S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-50S
The AirTAC SIJ80X700-50S 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 50 mm on-site, yielding a usable 650-700 mm window from the 700 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, scaling to 3518 N at 0.7 MPa, with a G3/8 port and 36 mm adjustable cushions. It is superseded by the drop-in SAIJ80X700-50S, which retains the exact bore, stroke, force, port, and mounting interface.
The SAIJ replacement introduces an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. For sizing, the 2513 N push at 0.5 MPa implies a safe working load around 1508 N (roughly 60 percent), or a vertical lift capacity of about 128 kg with a 2:1 margin. The stop screw strictly sets the end position and is not a load lock; the piston will drift on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-50S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X700-50S |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80X700-50S 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 SAIJ80X700-50S 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 SIJ80X700-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SIJ80X700-50S Is Used
Press Fit Tuning
Dial in the exact 650-700 mm extend position on-site to seat bearings without overstressing the fixture, using the 50 mm stop screw window.
Divertor Arm Adjustment
Fine-tune the actuator reach across a 50 mm range to handle varying product widths on the line without swapping the entire cylinder.
Carton Flap Folding
Adjust the extend end-point in the field to fold different carton depths precisely, relying on the 36 mm cushions for smooth stops.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-50S with the SAIJ80X700-50S
To replace the discontinued SIJ80X700-50S, order the drop-in SAIJ80X700-50S, keeping the -S magnet for CS1-B/DS1-B switches (current AirTAC switches on the SAIJ). The 50 mm adjust window is ideal for dialing in the 650-700 mm extend position without machining. If resizing, the neighboring bores offer 1767 N (63 mm) or 4523 N (100 mm) push at 0.9 MPa. Reuse FA, LB, or TC ISO 15552 mounts. Because the 700 mm stroke exceeds 300 mm, use an external guide to prevent rod bending and side-load wear. The stop screw only sets end position; it does not lock the load on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X700-50S
- ✓ 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 SIJ80X700-50S FAQ
Yes, the SIJ80X700-50S is discontinued. The exact drop-in replacement is the SAIJ80X700-50S, offering the same ISO 15552 interface, 80 mm bore, 700 mm stroke, 50 mm adjust window, G3/8 port, and mounting options. The SAIJ features 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 50 mm adjust window, allowing the extend stroke to be shortened from the 700 mm maximum down to 650 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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