This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X750-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X750-20 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 SIJ80X750-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 750mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X750-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X750-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-20
The AirTAC SIJ80X750-20 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 20 mm on-site, yielding a usable 730-750 mm stroke. The nominal 750 mm is the maximum. It delivers 2513 N push and 2268 N pull at 0.5 MPa, scaling to 4523 N at 0.9 MPa. The bore dictates a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. The exact drop-in replacement is the SAIJ80X750-20.
The SAIJ successor retains the interface, bore, and force, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Computed buyer insight: safe working load is ~1508 N (60% of the 2513 N push @0.5 MPa), allowing a 128 kg vertical lift with a 2:1 margin. This SKU lacks a -S magnet, so it cannot accept a magnetic switch. The stop screw sets end position only; it is not a lock, and the cylinder drifts on air loss. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X750-20 |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80X750-20 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 SAIJ80X750-20 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 SIJ80X750-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SIJ80X750-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 730-750 mm extend position on-site for pressing bearings without machining custom spacers.
Variable Length Diverter
Adjusts the extend stop to deflect varying package sizes on a conveyor line, fine-tuning the 20 mm window to match product dimensions.
Adjustable End Stop
Sets a precise mechanical end position for pallet positioning equipment, trimming the stroke by up to 20 mm to accommodate pallet tolerances.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-20 with the SAIJ80X750-20
To replace the discontinued SIJ80X750-20, order the drop-in SAIJ80X750-20, which matches the ISO 15552 mounting interface, G3/8 port, and 20 mm adjust window. When sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa. Choose the 20 mm adjust window if you need 730-750 mm of extend travel tuned on-site. Reuse FA, LB, or TC mounts directly. Because the 750 mm stroke exceeds 300 mm, support the rod against side-load bending with an external guide. This non-magnetic SKU cannot take sensors; for position feedback, select a -S magnet model and use legacy CS1-B/DS1-B switches. Remember that the stop screw is not a load lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X750-20
- ✓ 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 SIJ80X750-20 FAQ
Yes, the SIJ80X750-20 is discontinued. The exact drop-in replacement is the SAIJ80X750-20, which shares the same ISO 15552 interface, 80 mm bore, 750 mm stroke, 20 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 20 mm adjust window, allowing the extend stroke to be shortened from 750 mm to 730 mm on-site.
Related AirTAC SAI Cylinders
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