This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X200, 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 SID125X200
The AirTAC SID Series Double-Rod Cylinder SID125X200 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X200, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAID125X200
- 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 SID125X200
The AirTAC SID125X200 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. This SKU has no -S magnet and cannot carry a sensor. It features a 32mm rod, M27x2 thread, G1/2 port, and 40mm adjustable cushions. This SID model is discontinued; the direct replacement is the SAID125X200, matching the bore, stroke, and ISO 15552 mounting interface.
The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Because both faces use the rod-side area, the back rod can drive a second tool or carry a sensor cam. Note that air cushions only decelerate; for load holding without live air, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID125X200 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID125X200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X200 |
| Bore size | Ø125 mm |
| Stroke | 200 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 SAID125X200 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 SAID125X200 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 SID125X200
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 SID125X200 Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from a single piston, utilizing the equal both-ways force to maintain perfectly synchronized cutting pressure.
Anti-Rotation Transfer Gate
Uses the dual-rod architecture to prevent mechanical twist during high-speed part diversion on a conveyor, eliminating the need for external guide rails.
Balanced Pallet Lift
Lifts loads vertically with identical push and pull force, ensuring smooth deceleration at both stroke ends via the 40mm adjustable air cushions.
Replacing the Airtac SID Series Double-Rod Cylinder SID125X200 with the SAID125X200
To replace the discontinued SID125X200, use the SAID125X200 direct, which preserves the G1/2 port, 200mm stroke, and ISO 15552 mounting interface (Basic, FA, LB, TC). Size both ways by checking neighbouring bores, as force is equal in both directions (8028 N @0.7 MPa here). A double rod is right when you need anti-rotation or a back rod to drive a second tool. This non-magnetic SKU cannot take a switch. For stroke lengths >=300, verify side-load limits. Remember, cushions only decelerate; use a pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID125X200
- ✓ 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 SID125X200 FAQ
Yes, the AirTAC SID125X200 is discontinued. The direct replacement is the SAID125X200, which shares the same ISO 15552 mounting interface, 125mm bore, 200mm stroke, G1/2 port, and equal both-ways force.
Because it is a double-rod cylinder, force is equal both ways: 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. The operating speed is 30-500 mm/s, and it features a G1/2 air port.
Related AirTAC SAI Cylinders
Request a Quote for the SAID125X200
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X200 replacement — usually within 7-8 hours.