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Ball Screw Lift NG PCB Unloader Board Handling Equipment Paudima Clamp Cylinder

Minimum Order Quantity : 1 Packaging Details : wooden box
Delivery Time : 20~30days Payment Terms : T/T
Supply Ability : 5000pcs per year
Place of Origin: Made In China Brand Name: WEC
Certification: CE Model Number: NG-250E-ST

Detail Information

After-sales Service Provided: Engineers Available To Service Machinery Overseas, Online Support, Video Technical Support Warranty: 1 Year
Pcb Direction: L To R Or R To L Voltage: 220V
Application: SMT PCB Assembly Production Line Power Supply: AC 220V 50/60Hz
Rail Load Weight: Under 2 Kg Standard: SMEMA
High Light:

Paudima Clamp Cylinder PCB Unloader


Ball Screw Lift PCB Unloader


SMEMA PCB Board Handling Equipment

Product Description


PCB 250 OK/NG Unloader


Main Function Of 250 OK/NG Unloader:


  • SMT lines have multiple stages where components are placed onto printed circuit boards (PCBs). At the end of each stage, the PCBs move down the line to the next process.
  • Between stages, there are often NG/OK unloaders installed. These are mechanisms that check for defects, remove bad boards marked as NG (no good), and allow good boards marked as OK to proceed.
  • Optical inspection cameras are commonly used to check for missing components, misalignments, poor solder joints, etc. If defects are found, the PCB is automatically marked as NG.
  • When an NG board reaches the unloader, pneumatic pushers activate to divert it off the main conveyor and onto a reject conveyor. OK boards stay on the main line and continue to the next stage.
  • Having NG/OK unloaders minimizes the number of defective boards proceeding through the full assembly process. This saves time, materials, and prevents good boards from being damaged if transported together with NG boards.
  • Unloaders help isolate and remove defects as early as possible. NG boards removed can be reworked if the issues are fixable. The process improves quality control and efficiency for high-volume SMT production.


Main Specification Of 250 OK/NG Unloader:


Medol size NG-250E-ST NG-330E-ST NG-390E-ST NG-460E-ST
Machine size L1680*W1462*H1200mm L1920*W1640*H1200mm L1920*W1640*H1200mm L2160*W1900*H1200mm
PCB size 50*50~L350*W250mm 50*50~L460*W330mm 50*50~L535*W390mm 50*50~L535*W460mm
Magazine size L355*W320*H536mm L355*W320*H536mm L355*W320*H536mm L535*W530*H570mm
Transport height 900+50/-20mm,height can be adjusted by feet.
Transport rail special alumnum rail,φ4.8mm green flat belt.
Transport weight Under(2KG)
Power AC220V/50-60HZ (single electronic box control)
Transport motor Leisai 42 stepper motor.
Magazine transport motor ZD 15W fixed speed motor.
Lift motor ZD 120W motor with brake.
Control system OMRON PLC and PANASONIC sensor.
Control panel WEINVIEW touch screen.
Lift station TW ball screw lift,all in one sheet lift station.
Pusher cylinder SMC PCB pusher,PAUDIMA clamp cylinder.
Traverse cylinder SMC cylinder drive the whole set of rail move,push the board after traverse.
Transport chain Black Nylon engineering chain to transfer magazines.
Framworks 3.0mm sheet metal welded,with electrostatic powder on the surface.
Standard SMEMA





Q: What we can do for you?
A: Total SMT Machines and Solution, professional Technical Support and Service.
Q:Are you a trade company or a manufacturer?
A: OEM & ODM service are available.
Q: What is your payment terms?
A: 30% deposit in advance and 70% balance before shipment.
Q: Why choose us?
A: Leading SMT Supplier in China; Trade assurance to USD 560,000+; Professional after-sales service team.

Global Service:


For SMT Factory Setup, We Can Do for You:


1. We Provide Full SMT Solution for You.

2. We Provide Core Technology With Our Equipments.

3. We Provide The Most Professional Tech Service.

4. We Have Wealthy Experience on SMT Factory Setup.

5. We Can Solve Any Question About SMT.


Ball Screw Lift NG PCB Unloader Board Handling Equipment Paudima Clamp Cylinder 0



Packing method Of 250 OK/NG Unloader:


The packing method of our product is vacuum wooden box as below details.


Ball Screw Lift NG PCB Unloader Board Handling Equipment Paudima Clamp Cylinder 1

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