High Speed Double Twist Buncher

High Speed Double Twist Buncher

  • Payment Terms T/T, L/C, D/P, etc.
  • Delivery Time 50 days
  • Place of Origin China
  • Port of Loading Shanghai, China
  • Shipping By sea
  • HS Code 8479400000
  • Container Load 1*40HQ
  • Warranty Period 12 months

Product Details

Main Components

Commercial Parts

Packing Photos

Installation and Commissioning

FAQ

Product Details

In the production of wire and cable, multiple strands of wire need to be stranded before the insulation can be extruded. The stranding of multi-stranded wires can be carried out on stranding machines or bundling machines. When the diameter of a single wire is very fine, the number of strands is high and the wire is particularly soft, the traditional stranding equipment cannot meet the requirements and a bunching machine can only be used. Multiple single wire pay-off reels are placed in layers and rows on a fixed support and together they enter the main machine via a dividing plate. The rotation of the rotating body twists the single wires and completes the stranding of the wire.
We can offer a wide range of bunching machines for bare copper, tinned copper, silver-plated copper, copper-clad aluminium, special alloy and insulated core wires. Not only can they be used for stranding multi-stranded wires, but they can also replace (1+6) tube stranding and (1+6) frame stranding for regular stranding. Compared to the tube and frame stranding machines, the production capacity of the bunching machine is (2 to 4) times higher.

1. Equipment Features

(1) The user-friendly design makes operation easier and more convenient. Advanced PLC, touch screen and frequency control technology are used. The running program, instructions and machine self-test are all controlled by PLC, which is technologically advanced and reliable in operation.
(2) The professional program design ensures the reliability of the system. The imported magnetic powder clutch is used to control the tension and has a unique automatic tracking and adjusting design, so that the tension of the whole reel is even and consistent, thus the quality of the stranded wire is greatly improved.
(3) The special stranding bow material and unique design ensure that the quality of the stranded wire is not affected during high speed operation. With the latest wire crossing system, the wire enters the bow belt directly from the spindle guide wheel. The bow belt has a unique semi-circular groove design, which protects the wire from wind resistance during high speed operation, so that the stranded wire is no longer scratched or skipped.
(4) The electromagnetic brake is used to brake, and the brake is automatically applied when the wire is broken internally or externally, or when there are various faults.
(5) The whole machine are used synchronous belt drive, the machine without oil, stranded wire from oil pollution.

2. Main Technical Parameters

Model

LT500

LT560

LT630

LT800

LT1000

Max. rotation speed (rpm)

3000

3000

2000

1200

1000

Inlet wire diameter (mm)

0.08~0.52

0.08~0.52

0.10~0.68

0.30~1.70

0.68~2.13

Stranded outer diameter(mm)

≤2.2

≤2.2

≤3.3

≤6.5

≤9.0

Stranded cross-sectional area(mm²)

0.035~2.5

0.035~2.5

0.18~6.0

2.5~16

4~25

Stranding direction

S or Z (Optional)

The double twist buncher machines we offer can meet the requirements of different wire sizes. It has high speed, high efficiency, light weight, small footprint, low noise level and high quality.


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    Main Components

    This equipment is mainly composed of pay-off device, inlet module, eye die, main parts (frame structure, rotating part, stranding bow, traction device, caterpillar device, bobbin loading&unloading, take-up device), transmission system, electrical control system, safety protection cover, etc.

    1. Pay-off Device

    It can be equipped with active or passive pay-off stands according to customer requirements.

    1.1 Multi-head Active Pay-off Frame

    Multi-head Active Pay-off Frame
    It is suitable for applications where the pay-off tension needs to be precisely controlled and the bobbin weight is large, it can automatically track the take-up speed and provide the constant tension required by the process.
    1.2 Vertical Constant Tension Active Pay-off Frame

    Vertical Constant Tension Active Pay-off FrameIt can track the take-up speed automatic and supply constant tension. Tension regulation is achieved by pressure adjustment of the compressed air. Automatic emergency braking in the event of stops and wire breaks.

    In addition, we can also provide single-sided double-headed active pay-off frame, double-side double-headed active pay-off frame, vertical passive pay-off frame, horizontal static disc pay-off frame, etc. to meet the process requirements of different product bundle pay-off.

    2. Main Part

    Main Part

    The main part mainly includes the frame, stranding body, stranding bow, transmission, traction, bobbin loading and unloading, take-up and other parts. Among them: The frame structure is made of low carbon steel welded together. The body is annealed and aged to eliminate internal stress, and then machined in one go by a precision boring machine to reduce deformation under use.

    The stranding bow is made of imported carbon fibre. The special shape can reduce wind resistance. Low noise and good stability of the equipment when running at high speed.
    Adopting reducer motor screw to lift the tray up and down the bobbin. Up and down bobbin is safe and convenient.
    The take-up is controlled by servo motor, which ensures constant and non-volatile take-up tension.

    Commercial Parts

    1.Control panel adopts Siemens brand.
    2.PLC adopts Siemens brand.
    3.Schneider brand for frequency converter.
    4.The main bearing adopts NSK brand.
    5.The motor adopts Wanan brand.

    Packing Photos

    Packing photos of buncher machine-2Packing photos of buncher machine

    Installation and Commissioning

    After the order established, we will send our customer the layout drawing, circuit diagram & PLC wiring diagram, and the operating instruction. Customer can make the site planning according to the drawing we provided.
    When the equipment is about to be completed, the two parties will communicate in detail on the commissioning plan. Customer should get all the things ready before our engineer arrives. After the engineer arrives at the scene, he will meet with the customer to communicate the commissioning plan, the required expenditure and the estimated completion time. After the installation finished, the engineer will start the equipment with no-load test and full-load test. During the bunching, the engineer will train the customer ’s workers, and at the same time, the engineer will also tell them the problems they often encounter in the process and the effective solutions. We will try our best to support the workers be familiar with the entire production line.

    Installation and commissioning photos of buncher machineInstallation and commissioning photos of buncher machine-2

    FAQ

    Q: Commissioning during COVID-19 Epidemic?

    A: Covid-19 create a new way of business.

    So how we can carry on the inspection works now?
    Customers can ask the third-party to make inspection.
    We can also make inspection with customer by face-to-face video call.

    For commissioning, will it be more difficult?
    We put more efforts to get over the difficult of Chinese technician’s traveling for commissioning. First we finished commissioning works before dispatch, then we will make on line commissioning with customer’s team. We already make a great achievement. All machines dispatched have been finished commissioning or during the commissioning, the most difficult machines we have succeeded are, SFS tandem line for cat 6a, 7, drum twister, compounding line, etc.

    By all these activities, We are trying to reduce customer’s anxious on investment and development.

    Q: Can I visit your factory?
    A: All the customers from both home and abroad are warmly welcomed to visit our company and factory.

    Q: Do you supply the installation and commissioning?
    A: Yes, we do as followings:
    -As soon as customer informed us the machines are put in the right place, we will send both mechanical and electrical engineer for machine start up.
    -No-load testing: After machine installed completely, we make no-load testing first.
    -With-load testing: Usually we will can produce 3 different wires to make load testing.

    Flexible installation and commissioning measures will be provided under COVID-19 by LINT TOP. 
    -Acceptance report: After the buyer confirms that machine can reach all specification under contract, the acceptance report will be signed for our record that machine will be in guarantee period.

    Q: What information should I offer to get a detailed quotation from you?
    A: For single machine: Usually we need to know inlet wire size, outlet wire size to be produced, productivity, pay off and take up size to choose the right machine.
    For new cable plant or new cable production line, we need to know the datasheet of cables to be produced, the productivity, the standards to be followed, etc to design all machines needed.

    Q: Can you supply the auxiliary equipment along with the machines?
    A: Yes, definitely.
    We has supplied heat exchanger, copper/aluminum powder filter machine, cooling tower, chiller, air compressor, drawing dies, pointing machine, cold welders, bobbins etc. with our machines.

    Q: Could you do the design for the whole plant?
    A: Yes, this is our advantage.
    With the data sheet of cable to be produced, the standard your cables should follows, the productivity you expected. Our engineer on production technology and machinery will make design of production machines, test equipment, accessories like bobbins, dies, rewinding lines and materials needed.

    Q: How can I know the status of my order?
    A: We have our OA system on tracking the production.
    For any of your request we can send photos and videos of your order, also we can use FACETIME to let you know the production.

    Q: How do you work on the inspection before delivery?
    A: We will make dynamic balance testing, levelness testing, noise testing, etc. during production.
    After production finished, usually we make no-load running of each machine before delivery. Customers are welcomed to attend the inspection.

    Q: What exhibitions will you attend, can we meet in the fair?
    A: Dusseldorf International Wire and Cable Fair;
    Wire South America Fair;
    International Wire and Cable Fair in Shanghai;
    International Istanbul Wire Fair, etc.
    wire Southeast Asia Fair, etc.

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