This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X175, 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-SID63X175
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175 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-SAID63X175, 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-SAID63X175
- 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-SID63X175
The B04-SID63X175 is an AirTAC construction-machinery dedicated double-rod ISO 15552 cylinder. The B04- prefix denotes a heavy-equipment industry variant that is mechanically identical to the base SID63X175. A rod exits both ends on one piston, meaning both faces use the rod-side area, so push and pull force are equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. It features a 63mm bore, 175mm stroke, G3/8 port, M16x1.5 rod thread, and 30mm adjustable cushions. This SID model is discontinued; the direct replacement is the SAID63X175, which retains the same interface, force, and mounting.
The double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam or drive two tools simultaneously, while ISO 15552 mounting (Basic, FA, LB, TC) enables direct reuse of existing brackets. The SAI replacement upgrades the piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a -S magnet and cannot take a sensor. A plain cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X175 |
| 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-SAID63X175 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-SAID63X175 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-SID63X175
| 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-SID63X175 Is Used
Excavator Linkage Actuation
Drives synchronized dual-tool mechanisms on heavy equipment where equal both-ways force and anti-rotation stability are critical for precise positioning.
Loader Boom Alignment
Uses the back rod to carry a sensor cam or secondary load, maintaining balanced push and pull force through the 175mm stroke in construction cabs.
Heavy-Equipment Bracket Indexing
Indexes heavy machinery components using the G3/8 port and 30mm adjustable cushions to decelerate loads smoothly at both stroke ends.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X175 with the B04-SAID63X175
To replace the discontinued B04-SID63X175, specify the direct replacement SAID63X175, keeping the 63mm bore, 175mm stroke, G3/8 port, and equal-both-ways force. Because force is equal in both directions, size it by checking that 1402 N @0.5 MPa meets your load in both extend and retract. If you need more force, step up to the 80mm bore (2268 N @0.5 MPa); if less, step down to the 50mm bore (825 N @0.5 MPa). A double-rod cylinder is right when you need anti-rotation stability or must drive two tools from one piston. Mounting options include Basic, FA, LB, and TC. This SKU has no -S magnet and cannot accept a sensor. For stroke lengths of 300mm or greater, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X175
- ✓ 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-SID63X175 FAQ
Yes, the B04-SID63X175 is discontinued. The B04- prefix marks it as a construction-machinery dedicated variant of the base SID63X175, mechanically identical in spec. The direct replacement is the SAID63X175, which matches the ISO 15552 interface, 63mm bore, 175mm stroke, G3/8 port, and equal both-ways force.
As a double-rod cylinder, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
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