This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X800-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X800-20S 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 SIJ80X800-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20S 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 SAIJ80X800-20S, 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 → SAIJ80X800-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20S
The AirTAC SIJ80X800-20S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued. The drop-in replacement is the SAIJ80X800-20S, retaining the 800mm maximum stroke, G3/8 port, and 25mm rod. An external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 780-800mm stroke. This 80mm bore delivers 2513N push and 2268N pull at 0.5MPa. The stop sets the end position but is not a load lock; use an external rod lock for holding.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. For sizing, the safe working load is roughly 1508N (60% of the 2513N push at 0.5MPa), and vertical lift is about 128kg with a 2:1 margin. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches. With an 800mm stroke, mind rod-bending and use external guides to manage side loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X800-20S |
| 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 SAIJ80X800-20S 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 SAIJ80X800-20S 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 SIJ80X800-20S
| 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 SIJ80X800-20S Is Used
Variable Depth Boring
Trimming the extend stroke by up to 20mm on-site allows a boring head to dial in exact depth offsets on the fly without repositioning the entire ISO 15552 fixture.
Adjustable Transfer Pusher
A transfer pusher can fine-tune its 800mm extend reach by 20mm to accommodate varying pallet lengths or stop positions directly at the machine.
Variable Position Diverter
A packaging diverter uses the external stop screw to shorten the extend stroke precisely, adapting to different box sizes without reprogramming pneumatic flow controls.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-20S with the SAIJ80X800-20S
To replace the discontinued SIJ80X800-20S, order the drop-in SAIJ80X800-20S, reusing your existing FA, LB, or TC ISO 15552 mounts. The 20mm adjust window allows precise extend tuning from 780 to 800mm. If you need more force, the neighbouring 100mm bore offers 3927N push at 0.5MPa; if less is acceptable, the 63mm bore provides 1559N. For this 800mm stroke, verify side-load limits and add external guides to prevent rod-bending. The -S suffix means a piston magnet is present for legacy CS1-B/DS1-B sensors (the SAIJ uses current switches). Remember, a plain cylinder drifts on air loss; for load holding, select the SAIL or BSAI lock variant, or add a pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X800-20S
- ✓ 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 SIJ80X800-20S FAQ
Yes, the SIJ80X800-20S is discontinued. The exact drop-in replacement is the SAIJ80X800-20S. It shares the same ISO 15552 interface, 80mm bore, 800mm stroke, 20mm adjust window, G3/8 port, and mounting options. The SAIJ upgrade adds a two Y-shaped one-way piston seal for longer life and lower start-up pressure.
The 80mm bore provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and 4523N push at 0.9MPa (theoretical max 513kgf at 1.0MPa). The external stop screw allows you to trim the extend stroke by up to 20mm on-site, giving a usable extend range of 780-800mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
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