Tabber and Stringer Machine - Mbb PV Cell Soldering Stringer

• After-sales Service: Excellent After-Sales Service
• Warranty: Lifetime
• Transport Package: Sea Freight
• Specification: AM050E
• Trademark: Ooitech
• Origin: China
• Model NO.: Mbb PV

Product Description

Machine Function:
Automatic welding solar cell to strings.
MBB PV Cell Soldering Stringer is a fully automatic machine used to solder the mono-Si or poly-Si cells into a string. It can work with 156-230mm (3BB-15BB) cells, or 156-230mm (full, half-cut, 1/3-cut or 1/4-cut) cells after upgrade. With the use of PLC, servo, SCARA robot, industrial image processor system and other advanced automation technology, the entire process from cell feed to string outlet is fully automated.

Specifications

Item		Specifications		Description
		Traditional cells	MBB cells
Basic Information	Uptime	≥95%		(1 - unscheduled downtime/24H), unscheduled downtime refers to the time when the equipment malfunctions or is shut down unexpectedly.
	Speed	18Xmm cells: Half-cut>6600-6800 strips/hour 220mm cells: Half-cut>6600-6800 strips/hour 1/3-cut>6600-6800 strips/hour 1/4-cut>6600-6800 strips/hour		The capacity depends on the solder process. If the required solder time is too long, it may affect the production capacity.
	Cell Cracks	156mm to 171mm cells: Poly-Si ≤0.2%; Mono-Si ≤0.2%; 171mm to 230mm cells: Poly-Si ≤0.2%; Mono-Si ≤0.2%;		Popular Grade A cell, thickness ≥170μm Cell crack ratio = (cracked cells + micro-cracked cells)/total number of soldered cells × 100%
	Defect Detection	CCD
	Flux                Coating Method	Soak of ribbon
	Soldering Method	IR soldering
	Temp                 Control Accuracy	±7.5ºC		The upper/lower temp limits can be set on HMI; an alarm will be raised when the temp is out of the limit.
Cell	Size	156~230mm crystalline silicon cell and its half-cut, 1/3-cut or 1/4-cut strips		Depending on the cell process.
	No. of Busbar	3BB-15BB		Tooling switchover is required for cells with different busbar number.
	Busbar distance	Busbar spacing ≥13 mm Outmost busbar to cell edge >5mm
	Solder pad to cell edge distance	The top/bottom solder pad to cell edge >5.5mm
	Cell Thickness	170μm~200μm

 

Item		Specifications		Description
		Traditional cells	MBB cells
Cell String	Max String Length	1200mm		If upgraded, the length of string can be up to 2500mm.
	Head/Tail Extra Ribbon	The length of extra ribbon for the first and last string can be set separately.
	String Straightness Deviation	±0.5mm
	Peel Strength	The peel strength is no less than 1N/mm*busbar width.	Face-side ≥0.5N (Ø0.4mm ribbon; up to one point <0.5N is allowed for each busbar on face side); Back-side: ≥1N (Ø0.4mm ribbon)	Popular Grade A cell
	Cell Positioning	Based on the busbar of cell		/
	Cell Defects	Chipped corner, chipped edge, crack, screen screw/offset, 90°/180° screen rotation, etc.; defect level (like crack depth);		Can be defined on HMI
	Ribbon Offset	≤±0.3mm		Check if the centerline of ribbon coincides with the centerline of solder pad.
	Cell Spacing	Negative spacing: -1mm to -0.5mm Small spacing: 0.6mm to 1mm Normal spacing: adjustable within 1.5mm to 6mm
	Ribbon Flattening	/	Thickness of flattened circular ribbon: 0.12~0.15mm for 0.29mm       ribbon,       length ≥4.8mm-6mm	Applicable   when +0.5/- 0.5mm spacing is selected
	Cell Spacing Accuracy	±0.3mm		Depending on the cell cut depth and the screen print accuracy.
	Start Point of Soldering	Depending on the actual need		/
	String Unloading	Offline or sent to the layup machine		/
	Max Capacity of Cassette	360 strips		/

 

Item		Specifications		Description
		Traditional cells	MBB cells
Cell String	Optical String Inspection	Consistent soldering for each string and meet the visual requirements.		Optional
	EL String Inspection	Soldering defects, like pseudo soldering, micro-crack.		Optional
	Bad Soldered String	≤2%	≤2%	Popular Grade A cell, including pseudo soldering, over soldering, offset etc.
	Module Rework  Ratio (Before Lamination)	≤12%	≤15%	/
Ribbon	Ribbon Specification	Traditional flat ribbon: Width: 0.8 to 3.0mm; Thickness: 0.18 to 0.32mm	Circular ribbon: Ø0.29 to Ø0.45mm, tolerance ≤±0.01 Yield strength: 70~80MPa; Tensile strength: ≥150MPa Elongation: ≥25%	Appearance: Free of any copper exposure, solder beads, dark spots, scratches, tin dross beyond the allowable tolerance, etc.; the surface of coating shall have bright metallic color and the winding of ribbon shall be smooth and even.
	Leaded                   or lead-free	Suitable for both
	Ribbon Parameters	Average thickness of tin coating: ≥0.018±0.005mm Purity of copper substrate: ≥99.97% Elongation: ≥20% Tensile strength: ≥150MPa Yield strength: ≤70MPa		The  thinnest  place  of  tin coating ≥0.006mm
	Ribbon Spool	Inner diameter 16mm or 20mm,   outer   diameter ≤180mm, width ≤160mm	Inner  diameter  16mm  or 20mm,                outer                diameter ≤160mm, width ≤180mm
Power Supply and Air Supply	Power Supply	Three-phase 380V, 50Hz Three-phase  five-wire                (L1/L2/L3/N/PE),                     wire size 4×16mm2+1×10mm2
	Power	Average power: 35 kW; Peak power: 40 kW
	Air Supply	Pressure: 0.6-0.8Mpa Air consumption: ≥2000L/min Two Ø16mm air inlet hoses working at the same time		Two Ø16mm air inlet hoses must work at the same time to ensure stable pressure of machine.

 

Item		Specifications		Description
		Traditional cells	MBB cells
Power Supply and Air Supply	Air Supply Requirements	Air pressure: 0.6 - 0.8MPa; Ø16mm air inlet hose; Compressed air quality: Max. solid particle: 15μm (Class 3); Min. pressure dew point: +3ºC (Class 4); Max. oil vapor concentration: 5mg/m3 (Class 4)
	Ventilation	The 5 vents on the top of machine are Φ102mm. Connect these vents to the facility exhaust piping with Φ104mm ducts. The exhaust duct of the blower is Φ65mm.  The duct is connected to the facility exhaust system via the fifth Φ102 vent. The overall exhaust flow rate is larger than 1000m³/h. Considering the high temperature of exhaust,  it is recommended to use PVC pipe for exhaust duct.
	Installation Floor	The floor for installation shall have a loading capacity of 600kg/m2 at least and be flat without any vibration. The installation space (including the space for the operator to work) shall be no less than 8500(L)×3500(W)×2650(H)mm. Ambient temperature: 5 - 40ºC Relative humidity: 5 - 70% (non-condensing)

Package and Shipping