This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X75S, 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 SID200X75S
The AirTAC Airtac SID Series Double-Rod Cylinder SID200X75S 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 SAID200X75S, 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 → SAID200X75S
- 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 SID200X75S
The AirTAC SID200X75S is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring 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 SAID200X75S, sharing the same 200mm bore, 75mm stroke, G3/4 port, and M36x2 rod thread. The SAI family upgrades the piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This 200mm bore model features a 40mm piston rod, 50mm adjustable air cushions at each end, and a 30-500 mm/s speed range. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder drifts on air loss, so use an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID200X75S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID200X75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X75S |
| 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 SAID200X75S 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 SAID200X75S 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 SID200X75S
| 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 SID200X75S Is Used
Equal-Force Stamping
Drives a stamping die where the equal both ways push and pull force of 27141 N @0.9 MPa ensures consistent material forming and positive retraction.
Dual-End Transfer
Uses the second exiting rod to push a parallel conveyor lane simultaneously, keeping multi-track packaging lines perfectly synchronized without external linkages.
Anti-Rotation Web Guiding
The double-rod architecture prevents piston rotation during heavy web guiding tasks, maintaining precise 75mm corrections for thick material handling.
Replacing the Airtac SID Series Double-Rod Cylinder SID200X75S with the SAID200X75S
To replace the discontinued SID200X75S, install the direct replacement SAID200X75S, reusing the existing ISO 15552 mounting interface and G3/4 ports. Size both ways by verifying the equal push/pull force of 15080 N @0.5 MPa, or step to neighbour bores if higher capacity is needed. Choose a double rod when anti-rotation stability is required or the back rod carries a sensor cam. Reuse FA, LB, or TC mounts. The -S magnet supports legacy CS1-B/DS1-B switches. For this 75mm stroke side-load is minimal, but for stroke >=300mm verify guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID200X75S
- ✓ 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 SID200X75S FAQ
Yes, the SID200X75S is discontinued. The direct replacement is the SAID200X75S, which matches the 200mm bore, 75mm stroke, G3/4 port, and ISO 15552 mounting. The SAI replacement also uses an upgraded piston seal for longer life.
Force is equal both ways (double-rod) at 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. Speed is 30-500 mm/s. The bore uses a G3/4 port, a 40mm rod, and 50mm adjustable cushions. It cannot hold loads without live air.
Related AirTAC SAI Cylinders
Request a Quote for the SAID200X75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X75S replacement — usually within 7-8 hours.