This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-50TC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-50TC 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 SIJ80X125-50TC
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50TC 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 SAIJ80X125-50TC, 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 → SAIJ80X125-50TC
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50TC
The AirTAC SIJ80X125-50TC 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 extension from the 125 mm nominal maximum. The 80 mm bore uses a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa, rising to 4523 N at 0.9 MPa.
The exact drop-in replacement is the SAIJ80X125-50TC, preserving the TC mounting, force, and interface. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Computed buyer insight: safe working load is ~1508 N (60% of the 0.5 MPa push), allowing a ~128 kg vertical lift with a 2:1 margin. This SKU lacks a -S magnet, so it cannot take a magnetic switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50TC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-50TC |
| 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 SAIJ80X125-50TC 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 SAIJ80X125-50TC 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 SIJ80X125-50TC
| 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 SIJ80X125-50TC Is Used
Variable Stroke Pressing
Allows operators to trim the 125 mm extend down by up to 50 mm on-site, setting precise contact positions for light-duty pressing without changing the entire actuator.
Adjustable Transfer Stops
Provides field-tuned end positions for diverting or halting varying product sizes on a line, using the TC mount to pivot the cylinder into the optimal transfer angle.
Custom Height Indexing
Sets exact extend endpoints on the fly for indexing pallets or trays of non-standard heights, relying on the 2513 N push force at 0.5 MPa to move the load.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-50TC with the SAIJ80X125-50TC
Replace the discontinued SIJ80X125-50TC directly with the SAIJ80X125-50TC. To size both ways, the neighboring 63 mm bore yields 1559 N push @0.5 MPa, while the 100 mm bore yields 3927 N. This 80 mm bore provides 2513 N @0.5 MPa. The 50 mm adjust window is ideal for field stroke tuning without machining, but the stop sets end position only—it is not a load lock. The included TC mount satisfies ISO 15552 interface reuse. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. For stroke lengths >=300 mm, verify the rod end guidance to manage side-load moments. For held loads, use an external rod lock or SAIL/BSAI variant, as air cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-50TC
- ✓ 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 SIJ80X125-50TC FAQ
Yes, the SIJ80X125-50TC is discontinued. The exact drop-in replacement is the SAIJ80X125-50TC, which shares the same ISO 15552 interface, 80 mm bore, 125 mm stroke, 50 mm adjust window, G3/8 port, and TC mounting.
The 80 mm bore provides 2513 N push and 2268 N pull @0.5 MPa, 3518 N @0.7 MPa, and 4523 N @0.9 MPa, with a theoretical max of 513 kgf @1.0 MPa. The external stop screw window is 50 mm, 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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