This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X175S, 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 B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X175S
- 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 B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S
The AirTAC B04-SID63X175S is a double-acting, double-rod ISO 15552 cylinder where the B04- prefix designates it as a construction-machinery dedicated variant, mechanically identical to the standard SID63X175S. Because a rod exits both ends on a single piston, both faces use the rod-side area, making push and pull force equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. It features a 63 mm bore, 175 mm stroke, G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions at each end. This SID model is discontinued and the direct replacement is the SAID63X175S, which retains the same ISO 15552 interface, bore, stroke, and mounting.
The SAID upgrade introduces an improved piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. The double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam, driving two tools simultaneously while allowing ISO 15552 mounting reuse. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate near stroke end; an external rod lock or pilot-operated check valve is required for load holding, or the SAIL/BSAI lock variants.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X175S |
| Bore size | Ø63 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B04-SAID63X175S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The B04-SAID63X175S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×175 | 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 B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S Is Used
Excavator Boom Control
Utilizes equal both-ways force and anti-rotation stability for precise actuation of heavy-equipment guidance links on construction machinery.
Dual-Tool Synchronized Drive
Drives two opposing work tools simultaneously from a single piston, leveraging the double-rod layout for balanced pushing and pulling in compact assembly stations.
Rear-Cam Position Feedback
Mounts a sensor cam on the back rod extension to trigger legacy CS1-B/DS1-B switches, providing accurate end-of-stroke confirmation in dusty environments.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S with the B04-SAID63X175S
To replace the discontinued B04-SID63X175S, select the SAID63X175S, which is a direct upgrade matching the 63 mm bore, 175 mm stroke, G3/8 port, and ISO 15552 mounting dimensions (Basic, FA, LB, TC, FTC, TCM1, TCM2). When sizing both ways, verify the equal push/pull force of 1402 N @0.5 MPa is sufficient; if not, step up to the 80 mm bore (2268 N @0.5 MPa) or down to the 50 mm bore (825 N @0.5 MPa). A double-rod cylinder is the right choice when you need anti-rotation resistance, equal force in both directions, or need to mount a sensor cam on the rear rod. Keep the -S suffix to retain the piston magnet for current AirTAC switches. For strokes of 300 mm or longer, carefully manage side-load alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X175S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175S FAQ
Yes, the B04-SID63X175S (construction-machinery dedicated variant of SID63X175S) is discontinued. The direct replacement is the SAID63X175S. It shares the same ISO 15552 interface, 63 mm bore, 175 mm stroke, G3/8 port, and mounting, but uses an upgraded piston seal for longer life.
The double-rod design provides equal force both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port size is G3/8.
Related AirTAC SAI Cylinders
Request a Quote for the B04-SAID63X175S
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