This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-75 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-75 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 SIJ80X125-75
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X125-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X125-75
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75
The AirTAC SIJ80X125-75 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with an 80mm bore and 125mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 75mm on-site, yielding a usable 50-125mm extension window. The bore dictates a G3/8 port, M20x1.5 rod thread, and 36mm adjustable air cushions. This bore delivers 2513N push and 2268N pull at 0.5MPa, reaching 4523N push at 0.9MPa.
As this SIJ series is end-of-life, the exact drop-in replacement is the SAIJ80X125-75, preserving the ISO 15552 mounting interface, force, and stroke. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a safe working load is roughly 1508N (60% of the 0.5MPa push), equating to a 128kg vertical lift with a 2:1 margin. Note this SKU lacks the -S magnet and cannot take a switch; the stop screw sets end position but is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-75 |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIJ80X125-75 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 SAIJ80X125-75 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 SIJ80X125-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SIJ80X125-75 Is Used
Variable Stroke Pressing
Allows operators to fine-tune the extend stop down by 75mm on-site to accommodate varying material thicknesses during light-duty pressing or forming tasks.
Adjustable Diverter Arms
Perfect for diverting packages of differing sizes on a line, enabling rapid physical repositioning of the end stop without changing the entire actuator.
Variable Depth Push-off
Used in storage retrieval to push items varying distances onto a transfer belt, adjusting the extend window mechanically from 125mm down to 50mm.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75 with the SAIJ80X125-75
To replace the discontinued SIJ80X125-75, order the drop-in SAIJ80X125-75, which matches the 80mm bore, 125mm nominal stroke, 75mm adjust window, and G3/8 port. When sizing both ways, the neighboring 63mm bore yields 2182N push at 0.7MPa, while the 100mm bore yields 5497N push at 0.7MPa. Choose the 75mm adjust window if your application requires field-tuning the extend stroke down to a 50mm minimum. Mounting reuses standard ISO 15552 FA, LB, or TC foot/tap interfaces. Because this SKU lacks the -S suffix, it has no magnet and cannot accept legacy CS1-B/DS1-B sensors. For strokes of 300mm or longer, verify side-load tolerance to prevent guide wear. Remember the external stop only sets the end position; it does not hold the load on air loss, so add a pilot-operated check valve or external rod lock for vertical loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-75
- ✓ 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 SIJ80X125-75 FAQ
Yes, the AirTAC SIJ80X125-75 is discontinued. The exact drop-in replacement is the SAIJ80X125-75. It shares the identical ISO 15552 interface, 80mm bore, 125mm nominal stroke, 75mm adjust window, and G3/8 port. The SAIJ family also adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
This 80mm bore cylinder has a 125mm maximum extend stroke with a 75mm external stop screw window, allowing on-site stroke trimming down to 50mm. Force ratings are 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and 4523N push at 0.9MPa, with a theoretical max of 513kgf at 1.0MPa. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
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