This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI50X60TC, 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 SI50X60TC
The AirTAC SI50 Standard Cylinder SI50X60TC 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 SAI50X60TC, 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 → SAI50X60TC
- 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 SI50X60TC
The AirTAC SI50X60TC is a discontinued double-acting ISO 15552 profile cylinder with a 50mm bore and 60mm stroke. It delivers 982N push force at 0.5MPa via a G1/4 port. The direct replacement is the SAI50X60TC, which matches the original TC trunnion mount, bore, and force ratings.
This SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors.
Airtac SI50 Standard Cylinder SI50X60TC Technical Specifications
| Model | Airtac SI50 Standard Cylinder SI50X60TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI50X60TC |
| 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 SAI50X60TC 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 SAI50X60TC 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 SI50X60TC
| 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 SI50X60TC Is Used
Package Diverting
Uses the 60mm stroke to actuate routing gates on a packaging line, leveraging the 982N push force to deflect moderate loads.
Clamp Actuation
Secures workpieces in a machining fixture via the TC trunnion mount, accommodating side loads while providing 825N pull force.
Stopper Arm
Functions as a pneumatic stop in material handling, raising a physical barrier to halt pallets moving at 30-800 mm/s.
Replacing the Airtac SI50 Standard Cylinder SI50X60TC with the SAI50X60TC
To replace the SI50X60TC, order the SAI50X60TC. Confirm the ISO 15552 TC trunnion mounting interface, 50mm bore, 60mm stroke, and G1/4 port. Because this non-magnet SKU cannot hold a position switch, order an -S variant if you need CS1-B/DS1-B sensor feedback. For sizing, a 40mm bore neighbor yields 628N push at 0.5MPa, while a 63mm bore provides 1559N. If your application requires load holding on air loss, note that the standard cushion only decelerates; you must add an external pilot check valve or switch to the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI50X60TC
- ✓ 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 SI50X60TC FAQ
Yes, the AirTAC SI50X60TC is discontinued. The direct replacement is the SAI50X60TC. It is dimensionally interchangeable per ISO 15552, retaining the exact same 50mm bore, 60mm stroke, TC trunnion mount, G1/4 port, and output force.
The 50mm bore features a G1/4 air port and a 20mm rod. At 0.5MPa it provides 982N push and 825N pull force. At 0.7MPa push is 1374N, and at 0.9MPa it is 1767N. The theoretical maximum force is 200 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI50X60TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI50X60TC replacement — usually within 7-8 hours.