This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement B04-SAID63X700, 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-SID63X700
The AirTAC Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the B04-SAID63X700, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → B04-SAID63X700
- 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-SID63X700
The AirTAC B04-SID63X700 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 SID63X700. A rod exits both ends of the extruded aluminum barrel on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways (1402 N @0.5 MPa, 1962 N @0.7 MPa, 2523 N @0.9 MPa). It features a Ø20 mm piston rod, M16x1.5 rod-end thread, and a fixed G3/8 air port. This legacy model is discontinued and is fully replaced by the direct replacement SAID63X700, which reuses the exact ISO 15552 mounting interface, bore, stroke, and porting.
The SAID upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life, while retaining the adjustable 30 mm air cushions at each end. Because this SKU lacks the -S suffix, it has no magnet and cannot accept a magnetic switch. Note that air cushions only decelerate near stroke end; a plain cylinder does not hold loads on air loss, so an external rod lock or pilot-operated check valve is required for held loads.
Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700 Technical Specifications
| Model | Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B04-SAID63X700 |
| Bore size | Ø63 mm |
| Stroke | 700 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-SAID63X700 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-SAID63X700 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-SID63X700
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×700 | 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-SID63X700 Is Used
Excavator Linkage Actuation
Drives synchronized secondary attachments on heavy equipment where the double-rod design provides equal push and pull force for balanced hydraulic-like motion control.
Crusher Feed Gate
Opens and closes heavy dust gates on construction material crushers, using the back rod end to mechanically push a mechanical counterweight or limit flag.
Aggregate Diverter
Pushes a diverter flap from both ends on a gravel sorting line, ensuring the gate returns to center with identical force in both directions to prevent jamming.
Replacing the Airtac B04-SID Construction Machinery Special ISO Standard Cylinder B04-SID63X700 with the B04-SAID63X700
To replace the discontinued B04-SID63X700, specify the direct replacement SAID63X700, which matches the 63 mm bore, 700 mm stroke, G3/8 port, and ISO 15552 mounting dimensions (Basic, FA, LB, TC, FTC, TCM1, TCM2) with zero mechanical changes. When sizing, remember the double-rod design provides equal force both ways (1402 N @0.5 MPa), so you can evaluate neighboring bores (like 50 mm or 80 mm) based strictly on this symmetric pull value. A double-rod cylinder is the right choice when you need anti-rotation stability, want to drive two tools simultaneously from one piston, or need to mount a sensor cam on the back rod. Because this unit lacks the -S magnet, no sensors can be fitted. Finally, at a 700 mm stroke, the cylinder is highly susceptible to side-load and rod-bending forces; always use external guide rails to support the load and prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → B04-SAID63X700
- ✓ 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-SID63X700 FAQ
Yes, the B04-SID63X700 is discontinued. The direct replacement is the SAID63X700. The B04- prefix simply marks it as the construction-machinery dedicated variant of the base SID63X700. The SAID replacement shares the exact ISO 15552 interface, 63 mm bore, 700 mm stroke, G3/8 port, and equal both-ways force, but adds an upgraded two Y-shaped one-way piston seal for longer life.
Because it is 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. The air port is G3/8. Operating speed is 30-800 mm/s. It operates at 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and uses a Ø20 mm rod with an M16x1.5 thread.
Related AirTAC SAI Cylinders
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