Fiber Optic Splice Closure Manufacturer | IP68 Dome & Horizontal - DEJU
YOUR OWN FACTORY

Your Own Factory,
Not a Trading Company

Injection molding, assembly lines and in-house IP68 testing under one roof in Ningbo. We control quality, lead time and price from the raw pellet to the packed carton.

DOME SPLICE CLOSURE

Dome Fiber Optic
Splice Closures

12 to 576 cores, mechanical and heat-shrink sealed. Aerial, pole-mount, duct and buried use. IP68, CE, ROHS certified.

7+ yrs
Since 2018
50K+
PCS Monthly Output
200+
Global Buyers
8
Countries Served
Browse by Capacity

Splice Closure by Core Count

From small FTTH drop closures to large 576-core underground enclosures — pick the capacity that matches your network.

12
CORE
Mini FTTH drop closure
24
CORE
Small dome / horizontal
48
CORE
Most popular FTTX size
96
CORE
Aerial / duct
144
CORE
Multi-port distribution
288
CORE
Large capacity backbone
576
CORE
Super high-density
Custom
ODM
Your own design
Our Showroom

What We Manufacture

Every closure below is injection-molded, assembled and tested in our own Ningbo workshop — not sourced from a third party.

DEJU fiber optic splice closure showroom with dome, horizontal and FTTH boxes on display

Dome Vertical Closures

12–288 core, mechanical or heat-shrink seal, for aerial, pole-mount and buried installation.

Horizontal Inline Closures

24–576 core, multi-port up to 6-in / 6-out, ideal for duct, direct burial and trunk lines.

  • UV-stabilized PP / PC housing, IP68 rated
  • Splice trays 12 fibers each, stackable
  • OEM logo & color box from 50 pcs
Request catalog →
Why Deju

Factory-Direct.
Tested Outdoors.
Built to Last.

✓

IP68 Waterproof Tested

Every batch passes water immersion and pressure tests before packing.

✓

OEM / Private Label

Your logo, your color box, your spec. MOQ 50 pcs, 15-day lead time.

✓

Spanish-Speaking Team

We serve Latin America — Chile, Peru, Brazil, Ecuador, Argentina, Colombia.

✓

Overseas Stock

Local warehouses in Chile and Uruguay. Delivery in 1–7 days for urgent orders.

DEJU assembly line workers fitting fiber optic splice closures
Inside Our Factory

Injection · Assembly · Packing

20 injection molding machines, 4 assembly lines and in-house packing — all under one roof in Ningbo.

Blue injection molding machine making splice closure housing
Injection Molding
Workers on the assembly line assembling fiber closures
Assembly Lines
Plastic resin mixing and feeding equipment for injection molding
Raw Material Handling
Finished fiber optic closures packed and ready for export
Warehouse & Shipping

Need a Quote for Your Next Project?

Send us your spec sheet or target model — we reply within 1 working day.

Email eason@deju-ftth.com
Contact us
Contact us