This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X100, 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 SID125X100
The AirTAC Airtac SID Series Double-Rod Cylinder SID125X100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAID125X100
- 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 SID125X100
The AirTAC SID125X100 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring force is equal both ways at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. This discontinued model features a 125mm bore, 100mm stroke, G1/2 port, M27x2 rod thread, and 40mm adjustable cushions. The direct replacement is the SAID125X100, sharing the same mounting interface, bore, and stroke.
The SAID upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For this non-magnet SKU, sensing is not possible. A plain cylinder drifts on air loss; cushions only decelerate, so use an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID125X100 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID125X100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X100 |
| Bore size | Ø125 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID125X100 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
The SAID125X100 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 SID125X100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SID125X100 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously from a single piston, utilizing the equal both ways force to maintain balanced cutting pressure.
Anti-Rotation Transfer Unit
The twin-rod architecture prevents mechanical twist during high-speed part transfer across a conveyor, ensuring precise placement without external guides.
Symmetric Clamping Fixture
Applies equal clamping force from both ends of a workpiece to center heavy components securely, leveraging the 5734 N @0.5 MPa output.
Replacing the Airtac SID Series Double-Rod Cylinder SID125X100 with the SAID125X100
To replace the discontinued SID125X100, install the direct replacement SAID125X100, which matches the ISO 15552 mounting interface, G1/2 port, and equal-both-ways force. If sizing both ways, neighbor bores (100mm or 160mm) offer different force profiles, but the 125mm bore yields 5734 N @0.5 MPa. Choose a double-rod cylinder when you need anti-rotation stability or to drive two tools simultaneously. Mounting options include Basic, FA, LB, and TC. Since this is a no-S SKU, it cannot accept magnetic switches. For stroke lengths >=300, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID125X100
- ✓ 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 SID125X100 FAQ
Yes, the AirTAC SID125X100 is discontinued. The direct replacement is the SAID125X100, which shares the same ISO 15552 interface, 125mm bore, 100mm stroke, G1/2 port, and mounting options.
The double-acting double-rod design ensures force is equal both ways: 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. The air port is G1/2, the rod thread is M27x2, and speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID125X100
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X100 replacement — usually within 7-8 hours.