Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø100mm bore, 175mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke175 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S
The B04-SCD100X175S is an AirTAC double-acting, double-rod cylinder where the B04- prefix designates it as a construction-machinery dedicated variant, mechanically identical to the standard SCD100X175S. The through-rod design yields perfectly symmetric thrust, generating 3681 N of force in both directions at 0.5 MPa, scaling up to 6626 N at 0.9 MPa.
Because the Ø25 mm piston rod exits both end caps, this configuration provides enhanced anti-rotation characteristics and allows tooling to be mounted on the rear side. It features adjustable cushions with a 29 mm length to soften end-of-stroke impacts, and the built-in S suffix magnet enables CMSG, DMSG, or EMSG sensors to track piston position along the 263 mm body length A(SCD).
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 175 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø100mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | 5154 N |
| Max (@1.0 MPa) | 751 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S Is Used
Heavy Equipment Actuation
Drives robust mechanisms on construction machinery where the B04 designation ensures suitability for heavy-equipment builder specifications.
Dual-Side Tooling Shuttle
Simultaneously pushes and pulls tooling from both ends, leveraging the 3681 N equal force to move heavy fixtures between workstations.
Non-Rotating Pusher
The dual-rod guidance resists twist during high-thrust pushing tasks, maintaining alignment for precision heavy-duty pressing.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S the Right Cylinder?
Select this 100 mm bore when an application demands substantial equal bidirectional force (3681 N at 0.5 MPa) that a smaller 80 mm bore (2268 N) cannot provide. If your mechanism only requires thrust in one direction, the single-rod AirTAC SC100X175 is a lighter, more compact alternative. For loads imposing severe lateral stress, a dedicated guided cylinder is recommended over relying solely on the through-rod for support.
When ordering a replacement, verify five points: 100 mm bore, 175 mm stroke, PT1/2 port thread, basic mounting (or an SCD-compatible accessory like F-SC100LB), and the -S magnetic sensor option. Note that the SCD series uses a tie-rod body and is not dimensionally interchangeable with ISO 15552 cylinders.
Double-rod checklist
- ✓ Need equal force / speed both directions?
- ✓ Rear rod for tooling, stopper or sensor flag?
- ✓ Better rod guidance / anti-rotation?
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Keep BOTH rod ends clear of side load and interference.
- check Adjust end cushion screws for smooth stops.
- check Use SCD mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X175S FAQ
The B04- prefix indicates this is AirTAC's construction-machinery dedicated variant. It is mechanically identical to the standard SCD100X175S, offering the same 100 mm bore, 175 mm stroke, and 3681 N equal push/pull force at 0.5 MPa.
No, the 29 mm adjustable cushion only decelerates the piston near the stroke ends to reduce impact. It does not lock or hold the load. If the mechanism must maintain position without live air pressure, an external mechanical lock or pilot-operated check valve is required.
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