This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X130CB, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 SI50 Standard Cylinder SI50X130CB
The AirTAC Airtac SI50 Standard Cylinder SI50X130CB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 130mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI50X130CB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke130 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI50X130CB
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI50 Standard Cylinder SI50X130CB
The AirTAC SI50X130CB is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore, 130mm stroke, and CB clevis mounting. Delivering 982 N push force at 0.5 MPa via a G1/4 port, it is directly replaced by the SAI50X130CB. This direct SAI upgrade matches the exact bore, stroke, force, and ISO 15552 mounting interface.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. As this SKU lacks the -S magnet, it cannot accept a CS1-B/DS1-B sensor. For load holding, note that the air cushion only decelerates; explore SAIL or BSAI lock variants.
Airtac SI50 Standard Cylinder SI50X130CB Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X130CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X130CB |
| Bore size | Ø50 mm |
| Stroke | 130 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI50X130CB carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAI50X130CB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI50 Standard Cylinder SI50X130CB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×130 | 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 SI50 Standard Cylinder SI50X130CB Is Used
Clevis-Mounted Diverter
Uses the CB clevis to pivot and push 982 N packages smoothly onto adjacent conveyor lines with adjustable end cushions.
Vertical Lift Gate
Raises 50 kg access gates using the 130mm stroke, operating safely within the 589 N working load limit at 0.5 MPa.
Press Ejection Arm
Delivers rapid 30-800 mm/s ejection strokes, relying on the G1/4 air supply to clear stamped parts from the press bed.
Replacing the Airtac SI50 Standard Cylinder SI50X130CB with the SAI50X130CB
To replace the SI50X130CB, order the SAI50X130CB and confirm the ISO 15552 CB clevis mounting, 50mm bore, 130mm stroke, and G1/4 port. This non-magnet SKU cannot support sensing. For sizing alternatives, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. Because this is a plain double-acting cylinder, the cushion only decelerates; it will not hold a load on air loss. For secure holding, use an external pilot check valve or the SAIL/BSAI lock variants. At 130mm stroke, rod bending is low, but always guide external loads to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X130CB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI50 Standard Cylinder SI50X130CB FAQ
Yes, the AirTAC SI50X130CB is discontinued. The direct replacement is the SAI50X130CB. It shares the identical ISO 15552 mounting interface, 50mm bore, 130mm stroke, CB clevis mount, G1/4 port, and 982 N output force, fitting existing fixtures perfectly.
This double-acting cylinder features a G1/4 air port and M16x1.5 rod thread. It delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and 1767 N push at 0.9 MPa. The theoretical maximum force is 200 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI50X130CB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X130CB replacement — usually within 7-8 hours.