This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X75, 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 SID200X75
The AirTAC Airtac SID Series Double-Rod Cylinder SID200X75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID200X75
- 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 SID200X75
The AirTAC SID200X75 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, so push and pull force are equal at 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. The direct replacement is the SAID200X75, matching the 75 mm stroke, 200 mm bore, G3/4 port, and ISO 15552 mounting interface. The SAI family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This SKU lacks the -S magnet and cannot take a magnetic switch. A plain cylinder does not hold its load on air loss; the piston drifts and the 50 mm adjustable air cushion only decelerates near stroke end. For held loads use an external rod lock, pilot-operated check valve, or the SAIL/BSAI lock variant.
Airtac SID Series Double-Rod Cylinder SID200X75 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID200X75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X75 |
| Bore size | Ø200 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID200X75 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAID200X75 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 SID200X75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | 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 SID200X75 Is Used
Equal-Force Pressing
Drives a double-ended press where the return stroke must deliver the exact same 21110 N @0.7 MPa force as the advance stroke for consistent bidirectional forming.
Dual-Tool Transfer
Uses the rear rod extension to mount a secondary sensor cam or actuate a separate mechanism on the machine backplate while the front rod handles the primary work.
Replacing the Airtac SID Series Double-Rod Cylinder SID200X75 with the SAID200X75
To replace the discontinued SID200X75, install the direct replacement SAID200X75, reusing the existing ISO 15552 mounting hardware (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both ways by checking equal force: if 21110 N @0.7 MPa is excessive, step down to the 160 mm bore (13194 N), or up if needed. A double rod is right when you need equal both-ways force, anti-rotation stability, or a back rod to drive a second tool. This non-magnetic SKU cannot take switches. For this 75 mm stroke side-load is minimal, but for strokes >=300 mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID200X75
- ✓ 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 SID200X75 FAQ
Yes, the SID200X75 is discontinued. The direct replacement is the SAID200X75. It shares the same 200 mm bore, 75 mm stroke, G3/4 port, and ISO 15552 mounting interface, while adding an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. The air port is G3/4, the rod is Ø40 mm with an M36x2 thread, and speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID200X75
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X75 replacement — usually within 7-8 hours.