This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X700-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X700-20S 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 SIJ80X700-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X700-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X700-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-20S
The AirTAC SIJ80X700-20S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 700 mm nominal stroke and a built-in piston magnet. An external stop screw allows you to trim the extend stroke on-site by up to 20 mm, yielding a usable 680-700 mm window. This 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, features a G3/8 port, and includes 36 mm adjustable air cushions at each end. The exact drop-in replacement is the SAIJ80X700-20S, sharing the same interface, force, and mounting.
The SAIJ upgrade introduces an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. For sizing, the safe working load is roughly 1508 N (60% of the 0.5 MPa push force), translating to a 128 kg vertical lift with a 2:1 margin. Remember the stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock or SAIL variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X700-20S |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80X700-20S 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 SAIJ80X700-20S 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 SIJ80X700-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SIJ80X700-20S Is Used
Press Fit Tuning
Dialing in a 680-700 mm press fit insertion where a 20 mm external stop screw allows operators to fine-tune the final extend position without re-engineering the fixture.
Variable Length Diverters
Actuating a divert gate on a packaging line where product lengths vary, using the on-site stroke trim to adjust the extend endpoint precisely for each run.
Adjustable Pallet Stops
Depositing pallets at varying downstream gaps, allowing maintenance to shorten the extend stroke by up to 20 mm to accommodate new pallet dimensions.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X700-20S with the SAIJ80X700-20S
To replace the discontinued SIJ80X700-20S, use the drop-in SAIJ80X700-20S, which preserves the ISO 15552 mounting dimensions, 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; this 80 mm bore provides 2513 N. Choose the 20 mm adjust window if your extend stroke needs field tuning between 680 and 700 mm. Mounting options include FA, LB, and TC brackets. The -S suffix indicates a piston magnet for CS1-B/DS1-B switches. Because the 700 mm stroke is long, verify side-load limits, rod-bending forces, and use external guides to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X700-20S
- ✓ 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 SIJ80X700-20S FAQ
Yes, the SIJ80X700-20S is discontinued. The exact drop-in replacement is the SAIJ80X700-20S. It shares the same ISO 15552 interface, 80 mm bore, 700 mm stroke, 20 mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
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. The theoretical max is 513 kgf at 1.0 MPa. The external stop screw provides a 20 mm adjust window, allowing the extend stroke to be shortened on-site from 700 mm down to 680 mm. This stop sets the end position and is not a load lock.
Related AirTAC SAI Cylinders
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