This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X250-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X250-10 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 SIJ80X250-10
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 250mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X250-10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X250-10
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10
The AirTAC SIJ80X250-10 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with an 80 mm bore and 250 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 240-250 mm end position. This bore delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa. It features a 25 mm rod, M20x1.5 rod thread, and a G3/8 port. The exact drop-in replacement is the SAIJ80X250-10, matching the interface, force, and mounting.
The SAIJ successor retains the ISO 15552 mounting dimensions but incorporates an upgraded piston seal using two Y-shaped one-way elements 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. Note this SKU lacks a -S magnet and cannot accept a sensor. The stop screw sets end position but is not a lock; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X250-10 |
| Bore size | Ø80 mm |
| Stroke | 250 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 SAIJ80X250-10 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 SAIJ80X250-10 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 SIJ80X250-10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×250 | 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 SIJ80X250-10 Is Used
Press Fit Dialing
Fine-tune a 240-250 mm press extend to seat bearings without machining custom spacers, absorbing slight material tolerances on the line.
Divertor Gate Stop
Adjust the extend endpoint by up to 10 mm on-site to perfectly align a pneumatic divert gate with varying package widths.
Sealing Head Trim
Trim the extend stroke to set precise contact pressure on a sealing head, compensating for jaw wear without reprogramming the PLC.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10 with the SAIJ80X250-10
To replace the discontinued SIJ80X250-10, order the drop-in SAIJ80X250-10, which preserves the G3/8 port, 25 mm rod, and FA/LB/TC mountings. For force sizing, this 80 mm bore yields 2513 N push at 0.5 MPa; if less force is needed, the 63 mm neighbor provides 1559 N, while the 100 mm bore offers 3927 N. The 10 mm adjust window is ideal for fine-tuning the 240-250 mm extend endpoint without shims. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add external physical stops or switches if detection is required. For strokes of 300 mm or longer, carefully manage side loads to prevent rod bearing wear. Remember the stop screw is not a load lock; use a pilot-operated check valve for holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X250-10
- ✓ 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 SIJ80X250-10 FAQ
Yes, the SIJ80X250-10 is discontinued. The exact drop-in replacement is the SAIJ80X250-10. It shares the identical ISO 15552 interface, 80 mm bore, 250 mm stroke, 10 mm adjust window, and G3/8 port, but adds an upgraded two-piece Y-shaped piston seal for longer life.
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. The external stop screw allows trimming the extend stroke by up to 10 mm on-site, giving a usable 240-250 mm stroke. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
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