This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X800-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X800-40S 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 SIJ80X800-40S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-40S 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 SAIJ80X800-40S, 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 → SAIJ80X800-40S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-40S
The AirTAC SIJ80X800-40S is a discontinued double-acting, single-rod ISO 15552 adjustable-stroke cylinder with an 80 mm bore and 800 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable extend range of 760-800 mm. The stop sets the end position; it is not a load lock. This bore delivers 2513 N push and 2268 N pull at 0.5 MPa, features a 25 mm rod, M20x1.5 thread, and a G3/8 port. As an SIJ model it is end-of-life; the exact drop-in replacement is the SAIJ80X800-40S, matching the ISO 15552 interface, force, and mounting.
The SAIJ upgrade utilizes an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a safe working load is roughly 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift with a 2:1 margin. The built-in -S magnet supports legacy CS1-B/DS1-B switches. Note that a plain cylinder drifts on air loss; for load holding use an external rod lock or SAIL/BSAI variant. At 800 mm stroke, use external guides to prevent rod bending.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-40S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X800-40S |
| 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 SAIJ80X800-40S 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 SAIJ80X800-40S 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 SIJ80X800-40S
| 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 SIJ80X800-40S Is Used
Press Fit Tuning
Final insertion depth of bearings requires field stroke tuning; trim the extend stroke by up to 40 mm on-site to dial in the exact 760-800 mm end position without re-mounting the cylinder.
Divertor Positioning
Adjusting a divertor arm reach on a packaging line where carton sizes vary, using the external stop screw to set the precise extend endpoint for each product run.
Pallet Stop Adjustment
Acting as an adjustable pallet stop where the nominal 800 mm stroke is fine-tuned down by 40 mm to accommodate varying pallet depths without changing the fixed ISO 15552 mount.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-40S with the SAIJ80X800-40S
To replace the discontinued SIJ80X800-40S, order the drop-in SAIJ80X800-40S, which preserves the 80 mm bore, 800 mm stroke, 40 mm adjust window, G3/8 port, and ISO 15552 mounting. 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. Choose the 40 mm adjust window if your extend stroke needs on-site tuning between 760 and 800 mm. Mounting options include FA, LB, and TC brackets. The -S suffix ensures a piston magnet is present for legacy CS1-B/DS1-B sensors. Because the stroke is 800 mm (>=300), external guides are required to manage side-load and prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X800-40S
- ✓ 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 SIJ80X800-40S FAQ
Yes, the SIJ80X800-40S is discontinued. The exact drop-in replacement is the SAIJ80X800-40S. It shares the identical ISO 15552 interface, 80 mm bore, 800 mm stroke, 40 mm adjust window, G3/8 port, and mounting, but features 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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw provides a 40 mm adjust window, allowing the extend stroke to be shortened on-site from 800 mm down to 760 mm.
Related AirTAC SAI Cylinders
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