CARTRIDGE
ELEMENTS
BJC Stainless steel cartridge
elements feature...
• High heat density

• Fast Heating

• Stainless steel sheaths providing a stable, non-oxidising surface

• Maximum surface temperature 650°C (1200°F)

• Heat resistant flexible tails

• Heating element supported on high quality ceramic and solidly compacted with magnesium oxide

• Precision diameter tube for close fit in machined holes

• Basic list of designs are readily adaptable to suit special requirements, sizes and ratings

• Clearly stamp rated- Watts/Volts/Code No.

 

Our range of cartridge elements is commonly used in plastic dies, moulds, platens, bag sealers, carton making, shoe machinery, food vending, defrosting, electrical switch gear cabinets and a host of other applications.
Listed at right are maximum wattages for each size and whilst they are not available from stock, these together with any other various lengths, wattages and voltages can be manufactured promptly.

 

 TOLERANCES
 BJC cartridge elements are manufactured +0.00mm - 0.10mm for any given diameter. This sizing is maintained so that all units are a slide fit into a standard reamed hole. Thermal action will expand the element to ensure a close fit for maximum heat transfer.
In most applications cartridge elements are inserted into reamed holes and dissipate their heat by direct contact thus allowing loadings up to 6.2 watts per square cm of surface area of the cartridge (40W per square inch)
In applications where they are not in direct contact such as defrosting and air heating in switch gear cubicles,etc., then the maximum watt density must not exceed 3.1 watts per square cm of surface area (20W per square inch).
All sizes feature flexible nickel wire leads with double glass insulation. Standard lead length is 250mm but longer leads can be supplied on application.

 

 

 9.5 mm DIAMETER (3/8")
LENGTH mm WATTAGE
MAXIMUM 		CAT NO. 
50 
65
75
90
100
115
125
140
150
180
205
230
255
280
305 		 80 
100
125
145
170
190
215
240
260
300
350
400
440
485
530		 62
625
63
635
64
645
65
655
66
67
68
69
610
611
612
12.7mm DIAMETER (1/2")
LENGTH mm WATTAGE
MAXIMUM 		CAT NO. 
50
65
75
90
100
115
125
140
150
180
205
230
255
280
305		 100
135
165
195
225
260
290
320
350
410
470
530
590
650
710		 82
825
83
835
84
845
85
855
86
87
88
89
810
811
812
15.8mm DIAMETER (5/8")
LENGTH mm WATTAGE
MAXIMUM 		CAT NO. 
50
65
75
90
100
115
125
140
150
180
205
230
255
280
305		 125
165
200
240
280
320
360
400
440
520
600
680
750
830
910		 102
1025
103
1035
104
1045
105
1055
106
107
108
109
1010
1011
1012
19mm DIAMETER (3/4")
LENGTH mm WATTAGE
MAXIMUM 		CAT NO. 
50
65
75
90
100
115
125
140
150
180
205
230
255
280
305 		155
200
245
290
335
380
425
470
515
600
690
780
870
960
1050 		122
1225
123
1235
124
1245
125
1255
126
127
128
129
1210
1211
1212
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