ASU Cable Production Line for Central Loose-Tube Aerial Cable
ASU production-line panorama · Complete route remains visible What does this production route produce? This reference solution is for ASU (auto-supporting unitube) aerial optical cable with one central loose tube and two dielectric FRP strength members. When approved pre-colored fiber is supplied, HK-50 forms the jelly-filled PBT loose tube. The HK-90 ASU line then positions the FRP members, integrates the ripcord and applies the PE outer sheath. Final cable construction, span class, materials and equipment scope follow the approved cable drawing and target-market requirements. Brazil is a major market for HONGKAI's ASU production-line projects; each proposal is still matched to the approved cable design, target span and local project requirements.
- Production route
- HK-50 → HK-90 ASU
- Control approach
- Coordinated controls reviewed for each production stage
- Main processes
- PBT loose-tube extrusion · dual-FRP positioning · ASU forming · PE sheathing
- Suitable cable range
- ASU central loose-tube aerial cable · two parallel FRP members · span and final design confirmed per project
Read the ASU cable from the inside out.
Open the new exploded view, select a component, and see which of the two core production stages forms or integrates it into the finished all-dielectric aerial cable.
Two core stages form the reference ASU cable.
Select a layer above to highlight the stage that prepares, forms or integrates it.
Review the production configuration for the selected cable layer.
The cable-layer choice from Section 02 is carried here. Review its mapped production stage, then inspect the complete two-stage ASU reference route.
HK-50
PBT loose-tube production
Combine colored fibers, filling compound and PBT material into the required central loose tube.
- Input
- Approved colored optical fibers + filling compound + PBT
- Output
- Jelly-filled PBT loose tube
- Route position
- Stage 01 · Central loose-tube formation
Form the jelly-filled PBT loose tube
Control fiber pay-off, filling-compound metering, PBT extrusion, cooling and take-up.
Fiber feeding · jelly filling · PBT extrusion
This stage forms the single loose tube used at the center of the reference ASU construction.
Fiber count, tube geometry and material system
Confirm fiber count, fiber input format, tube dimensions, PBT grade and filling compound.
Machine quantities, dimensions, performance, auxiliary systems and final arrangement are confirmed from the cable construction and project requirements.
See the ASU-specific downstream production line in operation.
This official HONGKAI video demonstrates the HK-90 ASU-specific downstream line. It gives buyers a practical view of Stage 02 after the central PBT loose tube has been completed on HK-50.
Define the ASU project boundary before the route is finalized.
The two-stage route above is a reference configuration, not a contractual supply scope. Buyer, HONGKAI and joint responsibilities become final only in the approved technical proposal or agreement.
Nothing below is treated as included, excluded, buyer-supplied or HONGKAI-supplied until it is confirmed in writing.
Opening a group only reveals its details; it does not confirm scope.
01 Buyer prepares Buyer responsibility Project, product and site information for engineering review 4 items
Information HONGKAI must review before fixing the production route and reference equipment configuration.
- Target cable drawing and product requirements for review To be confirmed
- Starting materials, grades and supply formats To be confirmed
- Factory space, utilities, access and installation conditions To be confirmed
- Existing equipment and upstream/downstream interface information To be confirmed
02 Defined in the written proposal HONGKAI responsibility Recommended configuration and quoted supply boundary 4 items
HONGKAI defines the recommended configuration and quoted supply boundary after reviewing the available project inputs.
- Recommended production route and reference equipment configuration To be confirmed
- Quoted equipment list and equipment-source boundary To be confirmed
- Required interfaces for the quoted equipment To be confirmed
- Documentation, commissioning, training and after-sales scope stated in the proposal To be confirmed
03 Confirmed together Joint confirmation Technical interfaces, acceptance and project coordination 4 items
Technical interfaces, acceptance and project coordination require written confirmation from both project teams.
- Final process route and equipment configuration To be confirmed
- Layout, interface split and site-readiness conditions To be confirmed
- Acceptance criteria, test conditions and sampling method To be confirmed
- Delivery, installation, trial schedule, changes and final sign-off To be confirmed
Identify the inputs needed to review the ASU production route.
Select the planning topics you are ready to discuss during the first engineering review. A selection marks a review topic only; it does not approve a technical value, equipment quantity, material grade, performance target or supply scope.
Review the available ASU references and what still needs confirmation.
These images illustrate the HK-50 and HK-90 ASU stages mapped to the current ASU route. They are reference visuals, not a final equipment list, factory layout, performance commitment or acceptance record.
No planning topics selected yet. Return to Section 05 to add review priorities.
HK-50 PBT loose-tube line reference
Reference line for forming the central jelly-filled PBT loose tube. Final fiber input, filling system, active positions, tube geometry and operating requirements remain project-specific.
These production-stage images illustrate the current two-stage planning direction only. Final equipment quantity, sequence, dimensions, supply, performance and acceptance are defined only by the mutually approved technical agreement.
What Brazil customers value in an ASU project discussion.
Brazil is a strong market for HONGKAI's ASU production-line projects. The feedback below has been edited by HONGKAI to reflect customer-approved project experience and the facts supported by the public project records. HK-50 → HK-90 ASU
Clarify the route before requesting a proposal.
These answers define the ASU reference route, what the supplied images can demonstrate, and what still requires project confirmation.
What ASU cable construction is this reference route based on?
The reference construction uses colored optical fibers in one jelly-filled PBT loose tube, exactly two parallel FRP strength rods, one ripcord and a black PE outer sheath. Fiber count, water-blocking design, dimensions, FRP spacing, span class and material grades must follow the approved cable drawing and the target-market requirements.
Does the two-stage route assume pre-colored optical fiber?
Yes. The core ASU route shown here begins at HK-50 with approved colored fibers in the required package. If the project starts from bare fiber, an upstream coloring and rewinding stage can be evaluated separately from this two-stage core route.
Why does the page show two core production stages?
HK-50 forms the central jelly-filled PBT loose tube. The dedicated HK-90 ASU line then coordinates loose-tube feeding, two parallel FRP pay-offs, the project-specific forming and binding arrangement, ripcord placement, PE extrusion, cooling, measurement, accumulation and take-up.
Are HK-50 and HK-90 ASU the final equipment configuration?
No. They are reference production-stage models used to explain the process route. Final module quantities, dimensions, controls, utilities, optional systems and equipment interfaces are confirmed only after reviewing the cable drawing, materials, capacity target and factory conditions.
Can existing equipment or buyer-supplied materials be integrated?
Potentially, subject to technical review. HONGKAI must confirm material package sizes, tension ranges, line interfaces, control signals, dimensions, utilities, operating conditions and required tests before existing equipment or buyer-supplied materials are included in the proposed route.
What information is needed to confirm line speed and production capacity?
Please provide the cable drawing or specification, fiber count, finished diameter, required materials, product mix, target stable output, reel sizes, shift pattern, available utilities, factory layout and project schedule. Span class is a finished-cable design and validation result, not a fixed machine parameter. This page does not assume a standard project capacity or a universal 90 m/min result.
Are the machine images and process video the final supplied equipment?
No. The images illustrate the HK-50 and HK-90 ASU reference stages. The related ASU video demonstrates the dedicated downstream line; it is not a final arrangement, a performance result or an acceptance record.
Are inspection, FAT, installation and training included?
Name the target cable standard or customer specification first. Inspection points, FAT sample conditions, finished-cable tests, acceptance criteria, documentation, installation, commissioning, training, travel and on-site responsibility are project-scope items. Cable-standard compliance depends on the approved design, qualified materials, process validation and finished-cable testing; it is not a certification of the machine itself.
Final cable construction, performance, equipment, acceptance criteria and supply scope are defined only in the mutually approved technical and commercial agreement.
Plan your fiber optic cable production investment.
Share your target cable families, planned capacity, factory conditions and current project stage. HONGKAI will review the process route, equipment scope, system interfaces and open technical items before preparing a project-specific proposal.
What HONGKAI will review
- Target product plan
- Cable families, constructions, fiber counts and material requirements
- Process route
- Starting materials, required processes and equipment interfaces
- Capacity target
- Product mix, expected output and target line speed
- Factory conditions
- Available space, utilities, existing equipment and testing needs
- Project stage
- Planning, budgeting, factory preparation or production expansion
- Review status
- Preliminary assessment · Technical confirmation required
What to prepare · 6 items
- Target cable types, reference samples or available drawings
- Fiber counts, cable structures and material requirements
- Starting materials and required production processes
- Target output, product mix or expected line speed
- Existing equipment, reel sizes and available factory layout
- Utilities, testing requirements and planned project timeline
No complete specification yet? Share your target products and current assumptions. Unconfirmed items can remain “To be confirmed”.
The information submitted here supports a preliminary technical review. Final equipment configuration, performance, price, delivery schedule and supply scope are confirmed only in an approved proposal or agreement.
Fiber Optic Cable Production Project Brief
Tell us your planned cable products, target capacity and current investment stage. Partial information is welcome, and you may upload a cable drawing when available.