This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X75, 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 SID Series Double-Rod Cylinder SID100X75
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X75
- 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 SID Series Double-Rod Cylinder SID100X75
The AirTAC SID100X75 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal force both ways (3681 N at 0.5 MPa). It features a 100mm bore, G1/2 port, and 36mm adjustable cushions. The direct replacement is the SAID100X75, matching the interface, bore, stroke, and mounting.
The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this SID lacks a -S magnet, it cannot take a magnetic switch. A plain cylinder drifts on air loss; cushions only decelerate, so use SAIL or an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID100X75 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X75 |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAID100X75 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 SAID100X75 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID100X75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SID Series Double-Rod Cylinder SID100X75 Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from one piston, utilizing the equal both ways force to ensure perfectly synchronized cutting cycles.
Anti-Rotation Transfer Gate
Uses the dual exiting rods to prevent mechanical twisting during lateral part transfers on a high-speed conveyor line, eliminating binding.
External Cam Positioning
Leverages the rear protruding rod to physically actuate external limit valves or mechanical stops without requiring internal cylinder sensors.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X75 with the SAID100X75
Replace the discontinued SID100X75 directly with the SAID100X75, reusing your existing ISO 15552 FA, LB, or TC mounts. Size both ways by confirming the equal push/pull force of 3681 N at 0.5 MPa is sufficient; if not, step up to the 125mm bore. Choose a double-rod cylinder when you need anti-rotation stability or want to drive two tools from one piston. Because this SKU has no -S magnet, sensing is impossible. For any stroke over 300mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X75
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID100X75 FAQ
Yes, the SID100X75 is discontinued. The direct replacement is the SAID100X75. It matches the ISO 15552 interface, 100mm bore, 75mm stroke, G1/2 port, and mounting hardware, while adding an upgraded piston seal.
Force is equal both ways: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. Speed is 30-800 mm/s. The bore uses a G1/2 port, a 25mm rod with M20x1.5 thread, and 36mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X75
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X75 replacement — usually within 7-8 hours.