This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-50 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 SIJ80X125-50
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50 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 SAIJ80X125-50, 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 → SAIJ80X125-50
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50
The AirTAC SIJ80X125-50 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 75-125 mm extend window from the 125 mm nominal maximum. The 80 mm bore features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, G3/8 port, and 30-800 mm/s speed. It delivers 2513 N push and 2268 N pull at 0.5 MPa, up to 4523 N at 0.9 MPa. The exact drop-in replacement is the SAIJ80X125-50, sharing the same interface, force, and mounting.
The SAIJ upgrade utilizes an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a computed buyer insight from the 0.5 MPa push force indicates a safe working load of roughly 1508 N (60% margin) and a vertical lift capacity of about 128 kg at a 2:1 safety factor. This SKU lacks a -S magnet and cannot take a magnetic switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-50 |
| 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 SAIJ80X125-50 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 SAIJ80X125-50 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 SIJ80X125-50
| 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 SIJ80X125-50 Is Used
Press Fit Tuning
Trimming the extend stroke by up to 50 mm on-site allows precise press-fit depth adjustment for 80 mm bore actuation without machining custom spacers.
Variable Transfer Stops
Adjusting the extend stop on the fly accommodates different package sizes on a conveyor line, setting exact 75-125 mm protrusion distances.
Adjustable Diverters
Field-tuning the actuator end position enables a single diverter mechanism to handle multiple pallet widths using the 50 mm stroke reduction window.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50 with the SAIJ80X125-50
To replace the discontinued SIJ80X125-50, order the drop-in SAIJ80X125-50, which preserves the 125 mm maximum stroke, 50 mm adjust window, G3/8 port, and 4523 N @0.9 MPa force. Size both ways using 0.5 MPa figures: the 63 mm bore yields 1559 N push / 1402 N pull, while the 100 mm bore yields 3927 N push / 3681 N pull. Choose the 50 mm adjust window if your end-position tuning requires trimming the extend stroke by up to 50 mm on-site. Mounting attachments (Basic, FA, LB, TC) reuse the ISO 15552 interface. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. The external stop sets end position but is not a lock; for holding loads without live air, specify an external rod lock or SAIL/BSAI variant. For strokes >=300 mm, verify side-load tolerance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-50
- ✓ 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 SIJ80X125-50 FAQ
Yes, the SIJ80X125-50 is discontinued. The exact drop-in replacement is the SAIJ80X125-50. It shares the same ISO 15552 interface, 80 mm bore, 125 mm stroke, 50 mm adjust window, G3/8 port, and mounting options, while adding 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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw provides a 50 mm adjust window, allowing the 125 mm extend stroke to be shortened to 75 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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