This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X60H, 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 SI50X60H
The AirTAC Airtac SI50 Standard Cylinder SI50X60H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 60mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI50X60H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI50X60H
- 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 SI50X60H
The AirTAC SI50X60H is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore and 60mm stroke. It delivers 982N push force at 0.5MPa through a G1/4 port. The direct replacement is the SAI50X60H, matching the exact bore, stroke, force, port, and mounting interface.
This SKU lacks a magnet and cannot accept a sensor. It features a Viton H seal for 0-150C high-temp environments. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI50 Standard Cylinder SI50X60H Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X60H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X60H |
| Bore size | Ø50 mm |
| Stroke | 60 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 SAI50X60H 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 SAI50X60H 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 SI50X60H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×60 | 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 SI50X60H Is Used
Hot-End Ejection
Clamp and eject parts near furnaces using the Viton H high-temperature seal rated for 0-150C environments.
Transfer Diverting
Stroke 60mm to divert lightweight packages on a line, providing 982N push force at 0.5MPa.
Replacing the Airtac SI50 Standard Cylinder SI50X60H with the SAI50X60H
To replace the SI50X60H, order the SAI50X60H. Verify the ISO 15552 mounting interface, 50mm bore, 60mm stroke, G1/4 port (PT/G/NPT thread), and Viton H seal. Since this SKU lacks the -S magnet, it cannot support CS1-B/DS1-B switches; order a magnet-equipped SAI if sensing is needed. For sizing, the 50mm bore yields 982N push at 0.5MPa; drop to 40mm for 628N or step up to 63mm for 1559N. The 60mm stroke avoids side-load rod-bending risks seen in longer travels. For load holding, note that a plain cylinder drifts on air loss—the cushion only decelerates. Use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X60H
- ✓ 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 SI50X60H FAQ
Yes, the SI50X60H is discontinued. The direct replacement is the SAI50X60H, a dimensionally interchangeable ISO 15552 cylinder with the same 50mm bore, 60mm stroke, 982N force, and G1/4 port.
It features a G1/4 air port. At 0.5MPa it provides 982N push and 825N pull force. At 0.7MPa push is 1374N, and the theoretical maximum force is 200kgf at 1.0MPa.
Request a Quote for the SAI50X60H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X60H replacement — usually within 7-8 hours.