Single-head electric heating tube selection and cost analysis:
★ Single-head electric heating pipes are generally non-standard customized, and they can be selected according to specific actual working conditions;
★ The diameter of the single-head heating tube is less than 6mm, the thinner the more expensive;
★ The length of single-head electric heating tube is shorter than 50mm, the shorter the more expensive;
★ The higher the surface load of the single-head electric heating tube, the more expensive the price;
★ The price of the inner lead of the single-head electric heating tube is much higher than the price of the outer wiring;
★ The price of single-head electric heating tube is not quoted by the meter, it needs to integrate all the parameters to quote.
What scenarios are single-head electric heating tubes commonly used in:
▲ In terms of installation mode, it is mainly used in two scenarios: embedded mold hole heating and bare air dry heating; refer to [What is the difference between embedded heating and bare air dry heating on the life of the heating tube? 】
▲ Which equipment is specifically used for:
Plastic mold industry | Packaging and sealing equipment | Pharmaceutical molding equipment | 3D hot bending machine equipment | 3D printer equipment | Extrusion equipment | Ignition equipment, etc.
☑ Single-head electric heating tube selection guide-structure selection
Note: CHC model refers to: external wiring structure; CHCC model refers to: external wiring + ceramic head structure; CHS model refers to: inner lead structure; CHSC model refers to: inner lead + ceramic head structure
☑Single-head electric heating tube selection guide-technical parameter selection
Tube material: SS304/321/310S/Incoloy 800/840 [Note①]
Heating wire material: Cr20Ni80
Terminal: Copper
Wire: G Silicone glass fiber braided tinned copper wire 180℃
T Teflon wire 260℃
M Mica glass fiber braided pure nickel wire 400℃
Heat-resistant temperature of insulating tube: 180 ℃
Operating temperature: 700 ℃ [Note②]
Specification sheet analysis
Model L V W wire
Wire type Wire length
CHC6 -40 V220 W50 G 250
Note①: Suggestions for material selection: Surface load≤6W/ cm2- SS304; 6W/cm2＜surface load≤ 12W/cm2-SS321 or SS310S; 12W/cm2＜surface load≤ 20W/cm2-SS310S or Incoloy 800/840
Note ②: The operating temperature is 700℃, which is based on the use of material SS310S or Incoloy800/840. This temperature is used for the built-in dry-burning environment for 1 year, and the bare-air dry-burning environment for 3 months. [Attention, domestic low-end single-head tube embedded dry-burning is guaranteed for 3 months (low cost performance, not recommended)]
☑ Guide for selection of single-head electric heating tube-common sizes [Note③]
Note ③ The following sizes and powers are common models, and the following models are made of stainless steel 304 or stainless steel 321. Other sizes can be customized non-standard, you can directly consult online customer service.
※ Common dimensions of 6mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 6 40 220 50 G/T/M (CHC generally uses G/T type leads, CHS generally uses M type leads) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 80
60 220 100
70 220 120
80 220 140
90 220 150
100 220 190
150 220 300
200 220 400
250 220 500
※ Common dimensions of 8mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 8 40 220 70 G/T/M (CHC generally uses G/T type lead, CHS generally uses M type lead) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 100
60 220 130
70 220 160
80 220 190
90 220 220
100 220 250
150 220 400
200 220 550
250 220 700
300 220 850
350 220 1000
400 220 1100
450 220 1200
※ Common dimensions of 10mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 10 40 220 90 G/T/M (CHC generally uses G/T type leads, CHS generally uses M type leads) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 130
60 220 150
70 220 200
80 220 220
90 220 250
100 220 300
150 220 450
200 220 650
250 220 800
300 220 1000
350 220 1100
400 220 1200
450 220 1250
※ Common size of 12mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 12 40 220 110 G/T/M (CHC generally uses G/T type lead, CHS generally uses M type lead) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 150
60 220 200
70 220 240
80 220 290
90 220 300
100 220 350
150 220 550
200 220 800
250 220 1000
300 220 1200
350 220 1300
400 220 1400
450 220 1600
※ Common dimensions of 14mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 14 40 220 130 G/T/M (CHC generally uses G/T lead wire, CHS generally uses M lead wire) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 180
60 220 230
70 220 260
80 220 300
90 220 350
100 220 400
150 220 600
200 220 850
250 220 1100
300 220 1300
350 220 1400
400 220 1600
※ Common dimensions of 16mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 16 40 220 150 G/T/M (CHC generally uses G/T lead wire, CHS generally uses M lead wire) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 200
60 220 250
70 220 300
80 220 350
90 220 400
100 220 450
150 220 700
200 220 1000
250 220 1200
300 220 1500
350 220 1600
400 220 1800
※ Common dimensions of 18mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 18 40 220 160 G/T/M (CHC generally uses G/T lead wire, CHS generally uses M lead wire) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 220
60 220 300
70 220 350
80 220 400
90 220 450
100 220 500
150 220 800
200 220 1200
250 220 1400
300 220 1600
350 220 1800
400 220 2000
※ Common dimensions of 20mm pipe diameter
Model L (length: mm) V (voltage) W (power) Conductor surface load (W/cm2)
Type D (pipe diameter) Wire type Wire length (mm)
CHC/CHS 20 40 220 180 G/T/M (CHC generally uses G/T type leads, CHS generally uses M type leads) Standard 250 2≤W/cm2≤12
W/cm2=W/{Dπ(L-15)/100}
(Please calculate based on the power density (not the full length) of the heating part.)
50 220 250
60 220 320
70 220 400
80 220 450
90 220 500
100 220 550
150 220 1000
200 220 1300
250 220 1500
300 220 1700
☑Single-head electric heating tube selection guide-selection of other accessories
★A selection of accessories: thread
①Single-head electric heating tube with thread is generally used in the working environment of heating liquid.
② Thread style selection: fastener thread (M), G thread, R thread, NPT thread, etc. Nuts can be equipped.
③Selection of thread position: refer to the style drawing
④The choice of thread material: according to the corrosion performance of the heating liquid, stainless steel 201, 304, 316, etc. are generally used
★The second choice of accessories: fixed baffle/flange
①The size and style of the fixed baffle/flange are all non-standard customized, and you can also consult the customer to help design.
②Selection of fixed baffle/flange material: According to the corrosion performance of the heating liquid, stainless steel 201, 304, 316, etc. are generally used
★Three options for accessories: lead protection method
①Lead protection method 1: Metal hose sheath
②Lead protection method two: metal braided sheath
★Four options for accessories: temperature-measuring thermocouple
①General style of thermocouple: K/J type thermocouple
②The thermocouple placement position: the bottom of the tube is grounded, the bottom of the tube is not grounded, the middle of the tube is grounded, and the middle of the tube is not grounded.
☑Single-head electric heating tube selection guide-points of attention
▲ The working voltage must be consistent with the rated voltage, and the general working voltage should not exceed 10% of the rated voltage;
▲In order to ensure that the heat generated by the single-head electric heating tube can be transferred to the heating medium in time, and to reduce the temperature of the internal material of the single-head electric heating tube, the gap between the outer diameter of the heating tube and its insertion hole should be minimized when inserting heating , Usually the gap between the two is less than 0.1mm, such as an electric heating rod with a pipe diameter of 10mm, which should be a hole within 10.1; when exposed to air, the surface temperature must be controlled, otherwise the life will be short;
▲ When inserting heating, when processing the mounting hole, the coaxiality and size tolerance should be effectively ensured. If the processing hole is trimmed with a reamer and other tools during processing;
▲ The residue left in the processing, such as organic oil, should be cleaned up before installation of the heating rod, which will be carbonized after heating, which will affect the ability of heat transfer;
☑Single-head electric heating tube selection guide-we help you design
