Air-Blown Micro-Duct 5/3.5–12/10 mm — Blowing Distance, Compatibility & Quote Sheet

Looking to add high-density fiber with minimal trenching and fast turn-ups? SOCTFiber supplies air-blown micro-duct systems and micro-cables engineered for clean, long shots in 5/3.5, 7/5.5, 8/6, 10/8, 12/10 mm ducts—ideal for campus backbones, FTTx access, and smart-city builds.

Why choose SOCTFiber for air-blown builds

• Purpose-built micro-cables: lightweight, small-OD designs to reduce friction and extend blowing distance.
• Bend-insensitive optics: G.657-class single-mode options keep insertion loss stable in tight bends and indoor transitions.
• End-to-end last-mile kit: pair micro-cables with IP65/IP68 distribution/termination boxes, NAP/CTO enclosures, pigtails and patch cords.
• Predictable delivery: reference production for typical projects is about 5–15 days for ~200 km, confirmed after BOM lock.

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Duct sizes & cable fit (quick guide)

Right-sizing cable OD to duct ID is the key to low friction and long shots. Use this as a starting point and we’ll verify against your exact liner and route.

Micro-duct (OD/ID)	Typical micro-cable OD range*	Typical use
5/3.5 mm	~2.0–3.0 mm	FTTR/MDU risers, short campus links
7/5.5 mm	~3.0–4.0 mm	Access laterals, building drops
8/6 mm	~3.5–5.0 mm	Access rings, B2B links on campus
10/8 mm	~4.5–6.0 mm	Longer campus runs and feeders
12/10 mm	~5.0–7.0 mm	Micro-backbone feeders, multi-segment routes

* We recommend a fill factor that balances grip and airflow; final OD/ID pairing is confirmed per project before shipment.

Blowing distance: what to expect & how to improve it

Distance depends on compressor output, duct liner, route geometry, lubricant, and the cable-to-duct OD ratio. With matched components and straight paths, crews commonly achieve hundreds of meters per shot, and significantly more on optimized routes.

Field tips to extend distance

• Keep bends generous; avoid sharp elbows and crushed sections at pits.
• Use approved lubricant matched to your duct liner.
• Verify duct continuity with darts; clear debris and moisture.
• Stage intermediate assist for complex, multi-bend paths.
• Confirm OD/ID fit and check for ovalization before the run.

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SOCTFiber micro-cable lineup (for 5/3.5–12/10 mm)

• Air-Blown Micro-Duct Cable (GCYFY family): ultra-light, high-density design for long shots and stable performance.
• EPFU (Enhanced Performance Fibre Unit): G.657-class fiber for tight-radius routing; ideal where the duct transitions indoors.

Finish the route with NAP/CTO or IP65/IP68 distribution boxes, pre-terminated splitters (1×8/1×16/1×32/1×64), pigtails, and patch cords for fast acceptance.

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Quote sheet — copy/paste this into your RFQ

1) Duct & route

• Duct sizes: 5/3.5, 7/5.5, 8/6, 10/8, 12/10 mm
• Total length, longest single shot, number of segments/pits
• Bend count and tightest radius; liner type; planned lubricant

2) Cable build

• Target micro-cable OD and fiber count
• Fiber type (G.657 or OS2), jacket color/print, pre-lubed requirement
• Reel length preference (e.g., 2–4 km per reel)

3) Accessories

• Box type (NAP/CTO or IP65/IP68 distribution), port count
• Splitter ratios (1×8/1×16/1×32/1×64)
• Pigtails/patch cords (connector type, length)

4) Logistics

• Quantity (km), shipping terms EXW/FOB/CIF, destination port
• Target delivery week; packaging (drums/pallets) and labeling needs

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MOQ, samples & lead time

• MOQ & pricing: quoted by structure, OD and total kilometers, with tiered price breaks.
• Samples: short reels available for installer trials and lab tests.
• Lead time: reference about 5–15 days for ~200 km; exact schedule confirmed after BOM lock.

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Ready-to-order bundles

• Micro-cable + IP68 box + splitter kits for plug-and-play turn-ups at poles, façades or pedestals.
• FTTH pairing with indoor GJXFH drops for room/ONT transitions.

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Call to Action

Email your duct sizes (5/3.5–12/10 mm), route sketch, and target micro-cable OD today. We’ll return a compatibility check, estimated blowing distance, line-item pricing, and a confirmed lead-time window—so your crew can schedule the compressor and start blowing on time.