| 加工定制：否 | 品牌：MARCO | 型号：marco |
Data sheetmtv/sdp/e StepDot system for solder paste
Figure 1 – mtv/sdp/e StepDot system
? Combines advantages of needle dispensing and jetting
? Dispenses approx. 50 % smaller dot sizes than jet printing
? 15x faster than needle dispensing? Eliminates satellites
? User can select optimum dot size for different pad sizes
The mtv/sdp/* StepDot valve enables high speed dispensing of solder paste and other viscous materials, such assilver-fifilled epoxies and non-conductive bonding adhesives. The combination of the “macro” movement of the machinehead with the “micro” movement of the StepDot valve creates an innovative hybrid drive. The z axis movement of thenozzle over the dispensing
point is executed by the valve allowing continuous movement of the robot head during thedispensing process. This ”on the flfly” capability is 15 times faster than traditional needle dispensing and achievesspeeds of 100 dots per second at a dot pitch of 0.2 to 0.4 mm.The small shifts in the x, y and z axes allow the valve to “step” in multiple directions (sideways, forwards, backwards)and to perform the critical dispensing movement at high frequencies. Both symmetrical and asymmetrical BGApatterns can be achieved as well as discrete dot patterns for passive devices. ”Dot on demand” parameters allow fordynamic adjustment of dot size for different sized components and optimisation of PCB dispensing patterns wherewarping and planarity are an issue.
Dimensions | see drawing below |
Weight | approx. 2.2 kg |
Media | solder pastes, high viscosity media, silicone, general purpose at high line speed |
Available syringes | 30 cc, 55 cc, 2.5 oz, 6 oz |
Pressure range | 0.1 - 6 bar (regulated) |
Supply voltage | 24 V |
Supply power | 100 W |
Ambient temperature | 20°C-30°C |
Heater temperature | upto 70°C |
Opt. cooling system for dispensing head | cooling performance 17 W in ambient conditions |
Dispensing frequency | 100 Hz |
Line speed compensation | up to 200 mm/s |
Z axis stroke | 500 卩m |
Change in direction | 50 ms |
Dispensing trigger (INP) | <1 卩s (edge sensitive) |
Change in pressure (EPR on CON1) | 250 ms |
The valve is connected to the mtv/dcu/a dispensing control unit via an ethernet and a 22-pole connector. See doc:P/mtv/dcu/doc/004 for more details.
A | mts-interface |
B | DCU-interface |
C | Ethernet |
D | debug/DNC |
F | dispensing point |
G | media tank connection |
H | M5, 10 deep |
K | alignment pin 03H7, 5 deep |
Order number | Description |
mtv/sdp/e | StepDot system for solder paste |
