This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X75-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X75-50 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 SIJ80X75-50
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X75-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X75-50
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-50
The AirTAC SIJ80X75-50 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the drop-in SAIJ80X75-50. The external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable 25-75 mm stroke out of the 75 mm nominal maximum. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa via its G3/8 port.
The SAIJ successor retains the exact interface, force, and 36 mm adjustable cushions, but upgrades to a two Y-shaped one-way piston seal for lower start-up pressure. Computed buyer insight: safe working load is roughly 1508 N (60% of push@0.5 MPa), equating to a 128 kg vertical lift with a 2:1 margin. Note this non-magnetic SKU cannot take a switch, and the stop sets end position only—it is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-50 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X75-50 |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80X75-50 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 SAIJ80X75-50 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 SIJ80X75-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SIJ80X75-50 Is Used
Press Fit Tuning
Allows operators to dial in the exact 25-75 mm extend position for seating bearings without swapping mechanical spacers.
Variable Stroke Diverter
Adjusts the extend stop on-site to deflect varying package sizes on a G3/8 powered pneumatic line.
Adjustable End Stop Pusher
Sets a precise physical end position for carton indexing, trimming up to 50 mm off the 75 mm nominal stroke as layout demands change.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-50 with the SAIJ80X75-50
To replace the discontinued SIJ80X75-50, order the drop-in SAIJ80X75-50, keeping the same 50 mm adjust window and G3/8 port. To size both ways: the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the 50 mm adjust window when you need to trim the extend stroke on-site from 75 mm down to 25 mm. Mounting options (Basic, FA, LB, TC) reuse standard ISO 15552 interface dimensions. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch; add -S if sensing is required. For stroke lengths >=300 mm, verify your side-load limits to prevent excessive guide wear. The external stop screw sets the end position but does not lock the load; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X75-50
- ✓ 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 SIJ80X75-50 FAQ
Yes, the SIJ80X75-50 is discontinued. The exact drop-in replacement is the SAIJ80X75-50, which shares the same ISO 15552 interface, 80 mm bore, 75 mm stroke, 50 mm adjust window, G3/8 port, and mounting options.
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 you to trim the 75 mm nominal extend stroke down to 25 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
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