VDH 248 Vertical Dryer 

Vertical Dryer VDH 248

No. of heating circuits: 4
Capacity: 248 pcbs
2.5 – 3 pcbs per min., depends on the requested hold-on-time
  min. max.
Pcb size:
Pcb thickness: 
300 x 350 mm
0.3 mm 
610 x 610 mm
4.2 mm
Heating length: 
Cooling length: 
Connection load:
Continuous load: 
7.20 m
1.20 m
112 KW
62 KW
Length Height Width
Dimensions: 12.04 m 2.55 m 2 m
Incl. in- and outfeed: 13.54 m
Painting: RAL 7035 light- gray
Frame: IC 198 blue
 

A) Function:

The pcb runs in automatically and is centered. 
The grippers of the loading arm take the pcb on its upper edge (6 mm). The pcb is
hold by the grippers. The loading arm moves upwards to hang the pcb into the clamps of the dryer. Whilst hanging, the pcb passes the drying process consisting of 4 heating zones and a separate cooling zone. On the outfeed the second loading arm moves upwards to take the pcbs off the clamps and put them on the outfeed belt.

B) Temperature:
Tack drying Thermal Cure
Ramp up: 12 Min. 15 Min.
Hold on: 25 Min. 60 Min.    approx. 150 pcbs/hour
Cool down: 12 Min. 15 Min.

The dryer has four heating zones.
When leaving the heating zones the temperature on the pcb is about 150°C (thermal
cure) After leaving the temperature goes down. The pcb is being supplied with hot air to prevent condensation. The pcb passes the cooling zone. The temperature on the pcb is slowly run down such as to make the pcb leaving the dryer at about 30°C.

C) Advantages:

No subject to the pcb size
Special clamp for thin pcb material 0.1-2.4 mm
Excellent temperature distribution on pcb
No condensation
Visualization of process on pc
Temperature control of each zone on both sides
No buckling or distortions
Extendable at any time

D) Options/ Alternatives:

1. Double-track drying allows pcbs to be dried side by side

2. Shuttle dryer – with additional infeed for screen printing pcbs

Types of vertical dryers/ Specifications:

Type Holding time Duration Capacity pcb/min. Dryer length Heating length Total length No. of heating zones Connection/ continuous load kW 
VDH 144
PDF here

45 min.
60 min.

102 min.
120 min.

1.4
1.2
8080 mm 3275 mm 9580 mm 2 68/38
VDH 196
PDF here

45 min.
60 min.

85 min.
106 min.

2.3
1.85
10060 mm 5255 mm 11560 mm 3 92/50
VDH 248
(PDF: See below)

45 min.
60 min.

78 min.
100 min.

3.15
2.5
12040 mm 7235 mm 13540 mm 4 112/62
VDH 300
PDF here

45 min.
60 min.

75 min.
94 min.

4.0
3.2
14020 mm 9215 mm 15520 mm 5 130/72
VDH 352
PDF here

45 min.
60 min.

72 min.
90 min

4.9
3.9
16000 mm 11195 mm 17500 mm 6 150/83
 

Download this page as zipped pdf- file

Get infos on our products: 
Coating
- LG 250, VCR100
Drying
- (horizontally) HET 120, IR/16 KW, ABL 30, (vertically) VDH 248MD4000
Handling- Horizontal Loader HS, Vertical Loader VS, Transport Modules XT/US1/XTP, TVA Separators, TA Automatic Separators, SV100 Plane Raze Device

MASS - pcb in process

Products
News
Support
Company
Contact
Home

Back to the top

Do you have any questions, proposals or comments? Please send them to  info@mass-pcb.de