This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X800-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X800-20 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 SIJ80X800-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X800-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X800-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20
The AirTAC SIJ80X800-20 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, discontinued and replaced by the exact drop-in SAIJ80X800-20. It uses a G3/8 port, M20x1.5 rod thread, and a 36mm adjustable air cushion. The nominal 800mm extend stroke is the maximum; an external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 780-800mm window. The stop sets end position only and is not a load lock.
This 80mm bore generates 2513N push and 2268N pull at 0.5MPa, reaching 4523N at 0.9MPa. A computed buyer insight: safe working load is ~1508N (60% of push@0.5), giving a 128kg vertical lift with a 2:1 margin. The SAIJ replacement retains the ISO 15552 mounting interface and adds an upgraded two Y-shaped one-way piston seal for low start-up pressure. For load holding without live air, use an external rod lock or the SAIL/BSAI variants, as cushions only decelerate.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X800-20 |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80X800-20 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 SAIJ80X800-20 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 SIJ80X800-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SIJ80X800-20 Is Used
Long-Reach Press Tending
Extracting parts from deep press dies where the exact 780-800mm eject stroke requires on-site tuning to avoid crashing the tooling.
Variable-Position Diverters
Actuating a diverter gate on a conveyor where product formats change, requiring a 20mm extend stroke adjustment to hit the correct lane.
Pallet Stop Calibration
Positioning a pallet stop on a 800mm stroke line where the mechanical end position must be fine-tuned to match varying pallet dimensions.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20 with the SAIJ80X800-20
To replace the discontinued SIJ80X800-20, map directly to the SAIJ80X800-20 (insert A after S), retaining the 800mm stroke, 20mm adjust window, G3/8 port, and ISO 15552 mounting. Size both ways: the 63mm neighbour bore yields 1559N push@0.5MPa, while the 100mm bore yields 3927N. Choose the 20mm adjust window if you need precise 780-800mm field stroke tuning; for fixed lengths, a standard SAI cylinder is simpler. Reuse FA, LB, or TC mounts. This SKU has no -S magnet and cannot take a switch. At 800mm stroke, mind side-load and rod-bending—use external guides to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X800-20
- ✓ 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 SIJ80X800-20 FAQ
Yes, the SIJ80X800-20 is discontinued. The exact drop-in replacement is the SAIJ80X800-20. It shares the same ISO 15552 interface, 80mm bore, 800mm stroke, 20mm adjust window, G3/8 port, and mounting options, but features an upgraded piston seal.
The 80mm bore delivers 2513N push / 2268N pull @0.5MPa, 3518N @0.7MPa, and 4523N @0.9MPa (max 513kgf @1.0MPa). The external stop screw provides a 20mm adjust window, allowing you to trim the extend stroke from 800mm down to 780mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X800-20
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