This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X100-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X100-50S 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 SIJ80X100-50S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X100-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X100-50S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50S
The AirTAC SIJ80X100-50S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the drop-in SAIJ80X100-50S. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable 50-100 mm extension out of the 100 mm nominal maximum. 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 SAIJ replacement reuses the exact ISO 15552 mounting interface and adds an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
For sizing, the computed safe working load is roughly 1508 N (60% of the 0.5 MPa push force), 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; without live air the piston drifts. For held loads, specify an external rod lock or the SAIL/BSAI lock variants. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches, whereas the SAIJ uses current AirTAC switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X100-50S |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80X100-50S 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 SAIJ80X100-50S 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 SIJ80X100-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SIJ80X100-50S Is Used
Multi-Position Clamping
Allows operators to dial in the exact extend position for varying part widths on a single fixture, using the 50 mm trim window to accommodate different clamping depths without changing cylinders.
Variable Length Diverter
Ideal for diverting packages of differing lengths on a line, where the external stop screw can be tuned on-site to alter the pusher stroke and ensure items reach the correct lane.
Adjustable Depth Stops
Used in palletizing or stacking cells where the end position must be fine-tuned for different layer heights, leveraging the 50 mm adjustability to set precise mechanical endpoints.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50S with the SAIJ80X100-50S
To replace the discontinued SIJ80X100-50S, order the drop-in SAIJ80X100-50S, keeping the 80 mm bore, 100 mm nominal stroke, 50 mm adjust window, and G3/8 port. 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; this 80 mm model provides 2513 N. Choose the 50 mm adjust window if your fixture needs field tuning of the extend position; the stop screw shortens extension by up to 50 mm on-site but does not lock the load. Mounting options include FA, LB, and TC brackets. The -S magnet supports legacy CS1-B/DS1-B sensors. For strokes of 300 mm or longer, verify side-load guide tolerances to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X100-50S
- ✓ 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 SIJ80X100-50S FAQ
Yes, the SIJ80X100-50S is discontinued. The exact drop-in replacement is the SAIJ80X100-50S. It shares the same ISO 15552 interface, 80 mm bore, 100 mm stroke, 50 mm adjust window, and G3/8 port, but adds an upgraded piston seal for longer life.
The 80 mm bore delivers 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 provides a 50 mm adjust window, allowing you to trim the extend stroke from the 100 mm maximum down to 50 mm on-site.
Related AirTAC SAI Cylinders
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