This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X35TC, 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 SI100 Standard Cylinder SI100X35TC
The AirTAC Airtac SI100 Standard Cylinder SI100X35TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 35mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X35TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke35 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X35TC
- 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 SI100 Standard Cylinder SI100X35TC
The AirTAC SI100X35TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 35mm stroke. It delivers 3927N push and 3681N pull force at 0.5MPa, utilizing a G1/2 port and TC trunnion mounting. Because this SI series is end-of-life, you should order the direct replacement SAI100X35TC, which maintains the exact same ISO 15552 mounting interface, output force, and port size.
The SAI upgrade introduces a refined piston seal featuring two Y-shaped one-way elements for lower start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and therefore cannot accept position sensors. Furthermore, the SAI family adds SAIL, SAIF, and BSAI lock or valve variants that the legacy SI line lacked.
Airtac SI100 Standard Cylinder SI100X35TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X35TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X35TC |
| Bore size | Ø100 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 SAI100X35TC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X35TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X35TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×35 | 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 SI100 Standard Cylinder SI100X35TC Is Used
Short-Stroke Clamping
Ideal for high-force 3927N clamping of heavy castings in machining fixtures where a compact 35mm stroke is required.
Pallet Diverting
Provides robust actuation for heavy-duty pallet stops and diverters, utilizing the TC trunnion mount for pivot alignment.
Press Ejection
Delivers reliable 3681N pull force to eject dense parts from stamping presses, handling high dynamic loads effectively.
Replacing the Airtac SI100 Standard Cylinder SI100X35TC with the SAI100X35TC
To replace the discontinued SI100X35TC, order the SAI100X35TC. Confirm your ISO 15552 TC trunnion mounting interface, 100mm bore, 35mm stroke, and G1/2 port (available in PT, G, or NPT threads). If you need position sensing, you must select an SAI model with the -S magnet option, as this non-magnetic SKU cannot accept CS1-B or DS1-B switches. Sizing context: a 100mm bore yields 3927N push at 0.5MPa; if you need less force, step down to an 80mm bore (2513N push), or step up to 125mm (6136N push) for heavier loads. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding consider an external pilot check valve or the SAIL/BSAI lock variants. The 25mm rod uses an M20x1.5 thread.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X35TC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X35TC FAQ
Yes, the AirTAC SI100X35TC is discontinued. The direct replacement is the SAI100X35TC. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 35mm stroke, G1/2 port, and TC mounting interface.
This double-acting cylinder features a G1/2 port. It generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, and 7068N push at 0.9MPa. The theoretical maximum force is 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X35TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X35TC replacement — usually within 7-8 hours.