Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S is a genuine double-acting standard air cylinder with a Ø32mm bore and 300mm stroke, PT1/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ32 mm
- Stroke300 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
- 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-SC Construction Machinery Special Standard Cylinder B04-SC32X300S
The AirTAC B04-SC32X300S is a double-acting tie-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as the heavy-equipment dedicated variant of the standard SC32X300S, meaning it shares the exact same mechanical specifications, including a 32mm bore and 300mm stroke. It provides a push force of 402N at 0.5 MPa and 724N at the 0.9 MPa maximum operating pressure.
Equipped with a built-in magnet (S suffix), this unit allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for precise position feedback. The cylinder features a 12mm rod diameter, a PT1/8 port, and 21mm adjustable cushions to decelerate the piston at stroke ends. Its body length A is 140mm, yielding an extended length of approximately 440mm.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S Technical Specifications
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (approx.) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S Is Used
Excavator Door Latches
Actuates secondary safety latches and access panels on excavator housings where magnetic position confirmation is required before machine operation.
Concrete Mixer Gates
Drives discharge chute diverters on concrete mixing equipment, utilizing the 300mm stroke to route material flow accurately.
Heavy Equipment Access Covers
Automates the opening and closing of heavy-duty service covers on loaders and backhoes, relying on the 724N force at 0.9 MPa to lift panels.
Is the Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S the Right Cylinder?
This 32mm bore offers 402N of push force at 0.5 MPa. If your heavy-equipment mechanism requires less force, stepping down is not an option below this size in the SC range, but stepping up to a 40mm bore provides 628N at 0.5 MPa for higher load demands. Because this model features a 300mm stroke on a 12mm rod, side loads can cause rod-bearing bending; an external guide or a guided cylinder should be used to prevent premature seal wear.
When replacing this cylinder, match these five points exactly: 32mm bore, 300mm stroke, PT1/8 port thread, basic mounting (no bracket), and the built-in magnet (-S). The SC is a tie-rod cylinder that is shorter than an ISO 15552 unit, so it is not a direct dimensional replacement for ISO profiles.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S FAQ
The B04- prefix indicates that this is AirTAC's construction-machinery dedicated variant of the SC32X300S. It is mechanically identical to the standard SC32X300S, offering the same 32mm bore, 300mm stroke, 12mm rod, and 724N thrust at 0.9 MPa, but is designated for heavy-equipment builders.
No, the AirTAC SC series is a double-acting cylinder and does not hold position or lock loads when air pressure is lost or exhausted. The adjustable cushions only decelerate the piston near the stroke ends. A mechanical lock, external rod brake, or pilot-operated check valve is required to hold a load safely.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC32X300S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.