This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X40SH, 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 SI100X40SH
The AirTAC Airtac SI100 Standard Cylinder SI100X40SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 40mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X40SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke40 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X40SH
- 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 SI100X40SH
The AirTAC SI100X40SH is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 40mm stroke. Built for heavy-duty thrust (3927 N push at 0.5 MPa), it features a G1/2 port and M20x1.5 rod thread. The direct replacement is the SAI100X40SH, matching the exact ISO 15552 mounting interface, bore, output force, and porting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This -S and -H configured unit includes a piston magnet for CS1-B/DS1-B switches and a Viton H seal raising the operating temperature to 0-150 C.
Airtac SI100 Standard Cylinder SI100X40SH Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X40SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X40SH |
| Bore size | Ø100 mm |
| Stroke | 40 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 SAI100X40SH 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 SAI100X40SH 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 SI100X40SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SI100X40SH Is Used
Heavy Stamping Press
Drives high-tonnage stamping and forming dies where the 3927 N push force at 0.5 MPa is required for deep metal deformation.
Pallet Localization
Short 40mm stroke precisely indexes heavy loaded pallets into position on a conveyor line before wrapping or transfer.
Injection Mold Eject
Provides robust ejection force for large injection molded parts, utilizing the Viton H high-temperature seal for mold proximity.
Replacing the Airtac SI100 Standard Cylinder SI100X40SH with the SAI100X40SH
To replace the SI100X40SH, order the SAI100X40SH ensuring the ISO 15552 mounting interface, 40mm stroke, G1/2 port, and magnet option match your fixture. If less force is needed, neighboring bores like 80mm offer 2513 N push at 0.5 MPa; if more is required, a 125mm bore yields 6136 N. Note that a plain cylinder drifts on air loss as the cushion only decelerates; for load holding, specify the SAIL lock or BSAI clamp-lock variant, or use an external pilot check valve. The SAI family also offers the SAIF variant with a built-in 4M valve for bores up to 100mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X40SH
- ✓ 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 SI100X40SH FAQ
Yes, the SI100X40SH is discontinued. The direct replacement is the SAI100X40SH. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100mm bore, 40mm stroke, output force, and G1/2 port size.
The 100mm bore provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. It operates at 30-800 mm/s, uses a G1/2 port, and the Viton H seal supports 0-150 C.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X40SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X40SH replacement — usually within 7-8 hours.