This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X1000, 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 SID125X1000
The AirTAC Airtac SID Series Double-Rod Cylinder SID125X1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X1000, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAID125X1000
- 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 SID125X1000
The AirTAC SID125X1000 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on a single piston. Because both faces use the identical rod-side area, push and pull force are equal at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. This model features a 125 mm bore, a 1000 mm stroke, a Ø32 mm piston rod with an M27x2 thread, a G1/2 air port, and 40 mm adjustable air cushions at each end. The SID line is discontinued; the direct replacement is the SAID125X1000, which retains the exact ISO 15552 mounting interface, bore, stroke, and porting.
The SAID upgrade introduces an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life, while the legacy double-rod design inherently resists rotation and allows the rear rod to drive a second tool or sensor cam. Note this non-magnetic SKU cannot accept switches, and 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 SID125X1000 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID125X1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X1000 |
| Bore size | Ø125 mm |
| Stroke | 1000 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 SAID125X1000 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 SAID125X1000 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 SID125X1000
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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 SID125X1000 Is Used
Synchronized Conveyor Transfer
Drives opposing transfer arms on a wide conveyor belt simultaneously, using the equal both-ways force to push and pull parts evenly without rotational twist.
Dual-Tool Machining Station
Powers a primary machining tool on the front rod while the rear rod actuates a secondary clamping or gauging fixture, saving space and cycle time.
Guided Vertical Lift
Lifts heavy platens in assembly lines where the double-rod architecture prevents sagging and rotation, keeping the platen perfectly level throughout the 1000 mm travel.
Replacing the Airtac SID Series Double-Rod Cylinder SID125X1000 with the SAID125X1000
To replace the discontinued SID125X1000, install the SAID125X1000 directly—it matches the ISO 15552 dimensions, G1/2 port, M27x2 rod thread, and 40 mm cushions. When sizing both ways, verify your application needs the equal 5734 N @0.5 MPa push and pull force; if less force is acceptable, step down to the 100 mm bore (3681 N @0.5 MPa), or step up to the 160 mm bore (9425 N @0.5 MPa) for heavier loads. A double-rod configuration is the right choice when you require anti-rotation stability, need to drive two tools from one cylinder, or want to mount a sensor cam on the back rod. Mounting options include Basic, FA, LB, and TC styles. Because this SKU lacks the -S magnet, it cannot support magnetic sensing. Finally, for this 1000 mm stroke, you must account for side-load and rod-bending risks by using external guide rails to support the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID125X1000
- ✓ 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 SID125X1000 FAQ
Yes, the SID125X1000 is discontinued. The direct replacement is the SAID125X1000. It shares the same ISO 15552 mounting interface, 125 mm bore, 1000 mm stroke, G1/2 port, and equal both-ways force, while adding an upgraded two-piece Y-shaped piston seal.
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 air port is G1/2, the rod thread is M27x2, and it operates at 30-500 mm/s. Note that air cushions only decelerate the load near stroke end; they do not hold the load on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the SAID125X1000
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X1000 replacement — usually within 7-8 hours.