This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X65, 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 SI100X65
The AirTAC Airtac SI100 Standard Cylinder SI100X65 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 65mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X65, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X65
- 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 SI100X65
The AirTAC SI100X65 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 65 mm stroke, delivering a push force of 3927 N at 0.5 MPa. It features a G1/2 air port and a Ø25 mm piston rod. Because this legacy unit is end-of-life, AirTAC supplies the SAI100X65 as the direct replacement, matching the original ISO 15552 mounting interface, bore, stroke, output force, and port size for seamless fixture integration.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for extended lifespan and lower start-up pressure. Note that this specific SKU lacks a magnet and cannot accept a sensor. If you require load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI100 Standard Cylinder SI100X65 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X65 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X65 |
| Bore size | Ø100 mm |
| Stroke | 65 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 SAI100X65 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 SAI100X65 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 SI100X65
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×65 | 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 SI100X65 Is Used
Heavy Press Clamping
Ideal for exerting substantial clamping force on large fabricated metal assemblies, utilizing the 3927 N push force at 0.5 MPa to secure parts during machining or welding operations.
Pallet Lowering
Provides the robust vertical thrust needed to lower loaded pallets or heavy platens in conveyor systems, safely handling loads around the 200 kg vertical lift threshold.
Product Diversion
Acts as a heavy-duty diverter arm on high-throughput packaging lines, using the 65 mm stroke to push bulky goods cleanly onto adjacent routing lanes.
Replacing the Airtac SI100 Standard Cylinder SI100X65 with the SAI100X65
To replace the discontinued SI100X65, order the SAI100X65 while verifying your ISO 15552 mounting accessory (such as LB foot or TC trunnion) and thread type (PT, G, or NPT). Since this SKU lacks a magnet (-S), it cannot support position sensing; if switches are needed, select an SAI100X65S and use current AirTAC sensors. The G1/2 port and M20x1.5 rod thread remain unchanged. For sizing alternatives, a neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while stepping up to 125 mm provides 6136 N. Remember that a standard cylinder drifts without live air; for load holding, use an external pilot check valve or the SAIL lock variant. At 65 mm stroke, side-load risks are minimal, but always ensure proper guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X65
- ✓ 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 SI100X65 FAQ
Yes, the SI100X65 is discontinued. The direct replacement is the SAI100X65. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 65 mm stroke, output force, G1/2 port, and mounting interface, so it fits existing fixtures perfectly.
This double-acting cylinder features a G1/2 air port. The thrust ratings are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X65
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X65 replacement — usually within 7-8 hours.