Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X150S
The AirTAC Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X150S 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, 150mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke150 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X150S
The B04-SCD100X150S is an AirTAC construction-machinery dedicated double-rod cylinder, mechanically identical to the standard SCD100X150S. The B04- prefix simply designates its readiness for heavy-equipment builders without altering any physical specs. As a double-acting, double-rod actuator, the piston rod protrudes through both end caps, yielding identical thrust in both directions. You get 3681 N of force at 0.5 MPa and a potent 6626 N at 0.9 MPa for demanding work.
Because the rod exits both ends, the effective area subtracts the Ø25 rod volume from both chambers, ensuring perfectly balanced push and pull cycles. The barrel measures 263 mm in body length A(SCD) and features adjustable cushions with a 29 mm stroke to soften end-of-travel impacts. The built-in magnet (-S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the cylinder body for precise position detection.
Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X150S Technical Specifications
| Model | Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X150S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 150 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-SCD100X150S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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-SCD100X150S Is Used
Heavy Equipment Actuation
Drives robust bidirectional mechanisms on construction machinery where the B04 designation ensures suitability for rugged, heavy-equipment environments.
Shuttle Transfer Tables
Powers material shuttle systems requiring equal push and pull velocity, utilizing the rear rod extension for mounting a stopper or tooling.
Non-Rotating Pushers
Handles large pressing or pushing tasks where the dual-rod design provides better bearing loading and improved anti-rotation over single-rod units.
Is the Airtac B04-SCD Specialized Standard Cylinder for Construction Machinery B04-SCD100X150S the Right Cylinder?
Choose this 100 mm bore when your application requires substantial equal bidirectional force (3681 N at 0.5 MPa). If your project needs less thrust, stepping down to the 80 mm bore yields 2268 N at 0.5 MPa. If you only need unidirectional pushing and can tolerate unequal return force, a single-rod AirTAC SC cylinder saves space. For loads requiring true anti-rotation under heavy side load, a dedicated guided cylinder remains superior to a through-rod design.
When replacing this unit, match five points exactly: the 100 mm bore, 150 mm stroke, PT1/2 port thread, basic mounting style, and the built-in magnet. Note that the SCD series uses a tie-rod construction, not an ISO 15552 profile. If the application must hold a load vertically without constant air pressure, the adjustable cushion will not lock the piston; you must integrate an external rod brake or a pilot-operated check valve.
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-SCD100X150S FAQ
The B04- prefix indicates this is an AirTAC construction-machinery dedicated variant of the standard SCD100X150S. It is mechanically identical to the base model, offering the same 3681 N equal push and pull force at 0.5 MPa, with no changes to dimensions, seals, or ports.
A double-rod cylinder provides identical force and speed in both directions because the rod area is subtracted from both chambers. It also offers a rear rod for mounting secondary tooling or sensors and improves bearing load distribution, whereas a single-rod SC cylinder only provides full force on the push stroke.
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