This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-75S 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 SIJ80X125-75S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75S 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 SAIJ80X125-75S, 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 → SAIJ80X125-75S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75S
The AirTAC SIJ80X125-75S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ80X125-75S. It uses an external stop screw to trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 50-125 mm from the 125 mm nominal maximum. The Ø80 mm bore features a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. This stop sets the end position; it is not a load lock, and a plain cylinder drifts on air loss.
The SAIJ drop-in keeps the ISO 15552 mounting interface and adds an upgraded two Y-shaped one-way piston seal for low start-up pressure. Output is 2513 N push and 2268 N pull at 0.5 MPa (3518 N at 0.7 MPa, 4523 N at 0.9 MPa, max 513 kgf). For sizing, the safe working load is roughly 1508 N (60% of the 0.5 MPa push), yielding a 128 kg vertical lift with a 2:1 margin. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-75S |
| 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 SAIJ80X125-75S 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 SAIJ80X125-75S 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 SIJ80X125-75S
| 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 SIJ80X125-75S Is Used
Variable Pitch Forming
A press operation requiring precise extend endpoints that shift by up to 75 mm between product runs, using the external stop to set the forming depth on the fly.
Adjustable Transfer Diverter
A package routing gate that must extend between 50 mm and 125 mm to accommodate changing conveyor lane widths without swapping out the entire actuator.
Variable Height End Stop
A palletizing cell where the cylinder acts as a physical end stop for different pallet heights, trimming the extend stroke on-site for each batch.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-75S with the SAIJ80X125-75S
To replace the discontinued SIJ80X125-75S, order the drop-in SAIJ80X125-75S, which retains the exact 125 mm stroke, 75 mm adjust window, G3/8 port, and ISO 15552 mounting dimensions. When sizing both ways, the neighbouring Ø63 bore yields 1559 N push at 0.5 MPa, while the Ø100 bore yields 3927 N; the Ø80 provides 2513 N push and 2268 N pull at 0.5 MPa. Choose the 75 mm adjust window if your application requires field-tuning the extend stroke down to a 50 mm minimum. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix indicates a built-in magnet for legacy CS1-B/DS1-B switches. For stroke lengths of 300 mm or more, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-75S
- ✓ 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 SIJ80X125-75S FAQ
Yes, the SIJ80X125-75S is discontinued. The exact drop-in replacement is the SAIJ80X125-75S. It shares the identical ISO 15552 interface, 80 mm bore, 125 mm stroke, 75 mm adjust window, G3/8 port, and mounting options, while upgrading the piston seal to a two Y-shaped one-way element design.
The double-acting single-rod bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa. The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, yielding a usable extend range of 50-125 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
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