KD2020 machine is designed for LCD/LED TV repair, which can solve the problem of ACF/COF/TAB faults, the function of KD2020 is to replace, bond and re-bond COF/TAB on TFT LCD Panel glass and PCB.

KD891 Series Bonding Machine includes five variants.

Which model should I choose??? What’s the difference between these machines?

What are the types of ACF/ COF/ TAB faults?

There is a picture below shows the ACF/COF/TAB fault  in a TFT LCD Panel of a LED TV.

There are few COFs/TABs to connect TFT LCD Panel glass and PCB boards, which are called as X COFs and Y COFs, sometimes vertical or horizontal lines (bands) appeared on the TFT LCD Panel of LED TV screen. One of the reasons is the COF/TAB burned or loose bonding. In order to solve this problem, if the COF just have loose bonding (not burned), use bonding machine to re-bond the same COF; if COF is burned or physically disconnecting (like chip broken), use bonding machine to replace the same with a new COF of same number or replacement number.

KD891 version 3.0 Specification:

Single Head Manual platform Automatic Pressure Machine.

• Equipment Model Number : KD891version 3.0 (Single Head)
• Device Description : Repair screen machine /Bonding machine
• Device Applications : FPC? COF? TAB? LCD panel and PCB combination bonding.
• Applicable LCD panel specifications : 15” – 85”
• Applicable LCD panel thickness : 0.3MM-1.1MM (Single Glass)
• Display size : Two 18.5″ wide screen
• Bonding IC number : Multiple/Profile can be set
• Bind Direction : X or Y Unidirectional
• Bonding Head size : Big size Head 67*1.3*10 mm
• Bonding Accuracy : Within +-1.5 micron (Support 4K/8K screen)
• Highest positioning accuracy setting : +-0.5 micron (Currently domestic the highest index)
• Work environment requirements for Equipment : Clean room
• Supply Pressure : 0.5 ~0.7 Mpa (Dry air source)
• Power Supply : AC 220 +-10%? 50 Hz 1200W
• Cylinder Device : MX 20-100 type double bore slide table
• Heating type : Pulse (rapid heating / cooling and auxiliary cooling function)
• PID Temperature Control System :
  • Brand : Yudian (C36TV0UA1200 model)
  • Adjustable heating curve Duty setting type
  • The peak temperature : within +/- 2 degrees Celsius
  • Room temperature time to180 degrees the response time within2-3 seconds
• Hot Pressing Head :
  • Materials : Titanium A Grade
  • Origin –  Made in India
  • Head Size 67*1.3*10 mm
  • Plan precision (hot press side) : 0.001mm
  • Plan thickness 0.5 (Reserved 3 times grinding)
  • Thermocouple type : K type
• Industrial control Programmer : Delta PLC DVP-12SA2
• Digital image processing system
  • Number of microscopy lenses: 2
  • Microscopy : 30-200X continuous zoom
  • PCB counterpoint the display : Optional
  • Upper light source : have
  • Down light source : have
• COF trimming Unit Origin : India
  • Rail Type : U-rail (2056 high)
  • Accuracy : 0.01 mm
  • Adjustable direction : X/Y/R
  • R Itinerary : micrometer trimming with fine tuning +/- 5 degrees
  • COF mechanical clamping type
• Camera Holder :
  • Control mode : X/Y/Z micrometer control
  • Focus Adjustment : Manually adjust the focus
• Fixed platform 72” X 36” ( 1800 mm x 900  mm ) glass
• Control mode : 7″ HMI Touch screen + button operation
• Parameter setting : According to the need to set up Store multiple sets of hot pressing parameter
• Rated voltage : 220-230V  (customizable 110V)
• Maximum power : 1200 W
• Actual power : 700 W
• Body size : 1850 *1250 *1520mm (L*W*H)
• Machine Weight : 245 Kg
• Packing size : 1360 * 660 * 1370mm (L*W*H)
• Gross Weight : 400 Kg

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