High Density Electric Industrial Cartridge Resistance Heater
Crafted with precision, our advanced cartridge heater features a robust cylindrical stainless steel tube that delivers exceptional corrosion resistance. At its core, a meticulously engineered heating wire is intricately wound around a high-quality ceramic center, positioning it as the powerhouse of this premium heating solution.
The coil configuration is meticulously adjusted to meet the heater's power requirements, delivering superior heat distribution and extending the heater's service life. This advanced design reduces heating wire oxidation, even at higher temperatures. Whether you're heating solids, liquids, or gases, our cartridge heaters are unparalleled in their ability to conduct heat effectively when directly contacting the heat sink. Perfect for manufacturing plastic and rubber parts in the automotive sector, these heaters are indispensable in industries such as food processing, chemical production, electronics, medical equipment, packaging, and nuclear applications.
In addition to our comprehensive standard offerings, we excel in the custom development and production of cartridge heaters, tailored precisely to your detailed specifications.
The cartridge heaters feature a robust crimped-on or swaged-in design, integrating a premium nickel-chromium resistance wire for outstanding performance.
This resistance wire is skillfully wound around an exceptional-quality MgO core, perfectly centered within its stainless steel sheath.
Cartridge heaters serve a multitude of heating purposes, such as metal parts and liquid heating when paired with threaded bushings. They are capable of reaching metal temperatures as high as 760°C, ensuring top-tier performance with the appropriate material, watt density, and fit selections.
Performance capabilities:
1. Achieving part temperatures up to an impressive 1400°F (760°C) with an alloy 800 sheath
2. Watt densities can soar to 40W/cm²
3. Operational voltages range from a minimum of 5VAC to a maximum of 480VAC
4. Diameter as compact and precise as 3mm
5. Expanding up to a maximum diameter of 35mm
Benefits:
1. Installation is both easy and cost-effective
2. Crafted from superior materials
3. Optimized for enhanced heat transfer efficiency
4. Maintenance is straightforward and hassle-free
5. Ensures even temperature distribution throughout
6. Resilient to both oxidation and corrosion
7. Designed for exceptional long-term durability
8. Endorsed by TÜV Rheinland, holding CE certification
Technical Details:
1. Tube diameter: Ranging from Φ3mm to Φ30mm
2. Tube Material: Options include SS304, SS316, SS321, NICOLOY800, and more.
3. Insulation Material: Utilizes high-purity MgO
4. Resistance wire element: Available in Ni-Cr or FeCr
5. Lead Connection Options: Crimped or Swaged leads
6. Lead and Type of Connection Leads: 10" Fiberglass StandardWire Options: Silicone High Temperature Fiberglass.
Specification of Cartridge Heaters:
| Sheath material |
SS304.321.316L,Incoloy800.840,Titanium |
| Insulation material |
High-purity MgO |
| Resistance |
Ni-Cr or FeCr |
| Maximum voltage |
480VAC |
| Wattage density |
high/middle/low(5-40w/cm2) |
| Wattage tolerances |
toloerance :+5% -10% |
| Dimensional |
Diameter: Min. dia:3mm |
| Length: |
Customized |
| Lead options |
Crimped- on / Swaged- in |
| Lead types |
Swage fiberglass insulation nickel wire ( 750°C ) |
| Crimp on silicone lead ( 250°C ) Crimp |
| Silicon insulated wire ( 200°C ) |
| Crimp fiberglass insulation nickel wire ( 450°C ) |
| Internal |
Type J or K available thermocouple |
| Lead protection options |
Stainless steel braid |
| Stainless steel flexible hose |
| other options |
Bent heaters, in no-heat section, up to 90° angle |
| mounting flange |
Feature:
Common cartridge heaters can be divided into two types based on density:
1. High Power Density: Heat area surface power 10~25 W/cm²
Working temperature ≤ 450°C
2. Middle to Low Power Density: Heat area surface power 5~11 W/cm²
Working temperature ≤ 300°C
Voltage: 12~250V (or as per requirement)
High Density Construction:
High-quality stainless steel construction ensures long-lasting protection, even in the most demanding industrial environments.
Protected with a stainless steel sheath, the watt density can reach 50 W/cm² and the operating temperature can go up to 800°C.
More Photos of Our Cartridge Heaters:
Factors - How to Choose the Right Cartridge Heaters:
Consider the following factors to select the right cartridge heater:
1. Operating temperature
2. Watt density of the heating element
3. Sheath material (corrosive or non-corrosive)
-
- Temperature of the corrodent
-
- Degree of aeration of exposed corrodent
-
- Velocity of the corrodent
Dimensional Data:
(This table shows minimum and maximum sheath lengths for available diameters.)
| |
Diameter |
|
|
Length |
|
| Normal |
Actual |
Min |
|
|
Max |
| in. |
in. |
mm |
in |
mm |
in |
mm |
| 1/8 |
0.122 |
3.1 |
7/8 |
22.2 |
12 |
305 |
| 1/4 |
0.246 |
6.3 |
7/8 |
22.2 |
36 |
915 |
| 3/8 |
0.371 |
9.4 |
7/8 |
22.2 |
48 |
1220 |
| 1/2 |
0.496 |
12.6 |
7/8 |
22.2 |
60 |
1520 |
| 5/8 |
0.621 |
15.8 |
1 |
25 |
72 |
1830 |
| 3/4 |
0.746 |
18.9 |
1 |
25 |
72 |
1830 |
| 1 |
0.996 |
25.3 |
1 1/4 |
32 |
72 |
1830 |
(Indicates recommended maximum sheath length; however, longer lengths may be available.)
Termination Options:
1. Swaged-in Flexible Leads:
Swaged-in flexible leads with silicone-fiberglass insulation are recommended for applications where the leads must be bent at the exit point from the heater.
Unless a longer length is specified, 250mm
(10 in.)
leads are supplied.
Heaters 150mm
(6 in.)
or shorter generally have a 6mm
(1/4 in.)
no-heat section. Heaters up to 250mm
(10 in.)
require a 25mm
(1 in.)
no-heat section. Heaters greater than 250mm may require more than a 25mm no-heat section. To order, please specifyswaged-in flexible leads.
2. Right Angle Leads:
Right angle leads are used in applications with a high degree of flexing and when space limitations are critical. Lead wires exit at a 90° angle through the side of the heater sheath.
A right-angle tube may be necessary for certain constructions. To order, specifyright angle leads and lead length to suit your precise specifications.
| Diameter mm |
Min No-Heat Length mm(in.) |
| 6.5 |
15 (9/16) |
| |
15 (9/16) |
| 108.0 |
17 (2/3) |
| 12.5 |
18 (11/16) |
| 16.0 |
20 (3/4) |
| 20.0 |
21 (13/16) |
3. Premium Stainless Steel BraidPremium Stainless Steel Braid
Our robust stainless steel braid is meticulously crafted to protect your leads from abrasion against sharp edges, ensuring unparalleled durability and reliable performance.
For diverse lead exit configurations, we offer bespoke solutions: When leads exit straight out, the braid is expertly swaged into the no-heat section of the heater. For right-angle exits, a crimp connector securely attaches the braids, ensuring flawless integration and performance.
Unless otherwise requested, our standard leads are masterfully crafted to a length of 250 mm
(10 in.)
in length. The superior braid is crafted at 200 mm
(8 in.)
long. To tailor your order, kindly specify your preference for straight or right-angle stainless steel braid, lead length, and detailed no-heat section requirements.
| Diameter |
Min. No-Heat Length |
| Straight |
Right Angle mm |
| mm |
| mm (in.) |
|
(in.) |
| |
|
| 6.5 |
30 (1 1/8) |
|
N/A |
| 8.0 |
30 (1 1/8) |
15 |
(9/16) |
| 10.0 |
30 (1 1/8) |
17 |
(2/3) |
| 12.5 |
30 (1 1/8) |
18 |
(11/16) |
| 16.0 |
30 (1 1/8) |
20 |
(3/4) |
| 20.0 |
30 (1 1/8) |
21 |
(13/16) |
4. Durable Stainless Steel Hose Durable Stainless Steel Hose
Our premium stainless steel hose ensures exceptional protection against abrasion from sharp edges or abrasive equipment. It also guarantees ease of handling and efficient wiring in challenging environments.
For right-angle lead exits, the hose is expertly silver soldered to the sheath. Unless specified, standard leads measure 250 mm(10 in.) in length, and the hose is precisely crafted at 200 mm(8 in.) in length. To order, please specify your choice of stainless steel hose, lead length, and tailored no-heat section.
| |
Min. No-Heat Length |
| Diameter |
Straight |
Right Angle mm |
| mm |
mm (in.) |
|
(in.) |
| 6.5 |
30 (1 1/8) |
|
N/A |
| 8.0 |
30 (1 1/8) |
15 |
(9/16) |
| 10.0 |
30 (1 1/8) |
17 |
(2/3) |
| 12.5 |
30 (1 1/8) |
18 |
(11/16) |
| 16.0 |
30 (1 1/8) |
20 |
(3/4) |
| 20.0 |
30 (1 1/8) |
21 |
(13/16) |
5. Galvanized Conduit Protection Galvanized Conduit Protection
Our galvanized conduit offers protection comparable to stainless steel hose, effectively guarding against abrasion.
The conduit is attached via a 90° elbow copper coupler, securely overlapping the heater sheath. Unless specified, we provide a standard 200 mm(8 in.) conduit, with leads extending 50 mm beyond the conduit for enhanced flexibility. To order, please specify galvanized conduit, lead length, and desired no-heat section.
| |
Min |
|
|
Galvani |
| Diam |
Dimensio |
Dimensio |
zed |
| No-Heat |
| eter |
n A |
n B |
conduit |
| Length |
| mm |
mm(in.) |
mm(in.) |
O.D. |
| mm(in.) |
| |
|
|
mm(in.) |
| |
|
|
|
| 6.5 |
12(7/16) |
22(7/8) |
29(1 1/8) |
10(3/8) |
| 8.0 |
12(7/16) |
22(7/8) |
29(1 1/8) |
10(3/8) |
| 10.0 |
12(7/16) |
22(7/8) |
29(1 1/8) |
10(3/8) |
| 12.5 |
12(7/16) |
28(1 1/8) |
30(1 3/16) |
14(1/2) |
| 16.0 |
12(7/16) |
28(1 1/8) |
34(1 5/16) |
14(1/2) |
| 20.0 |
12(7/16) |
29(1 1/8) |
36(1 7/16) |
16(5/8) |
6. High-Temperature Ceramic Bead Insulation
Our high-temperature ceramic bead insulation offers outstanding protection for leads in environments exceeding 450°C(840°F). The ceramic beads are designed to fit over solid conductors, extending to cooler areas where flexible wires can be securely attached. To specify your order, please indicate ceramic beads and length, as well as additional lead length requirements.
7. Versatile Stainless Steel Flanges
Our versatile stainless steel flanges offer both a convenient mounting method and an effective way to precisely position heaters within applications. Flange style and specifications are tailored to your exact requirements. These flanges can be strategically positioned in any no-heat section of the heater sheath. To order, please specify flange, desired flange size, and exact location. .
Immersion Cartridge Heaters for Liquid Applications:
For superior liquid immersion heating applications, we recommend the use of high-quality brass or stainless steel threaded bushings.
The size of the threaded bushing is meticulously matched to the pipe diameter. Available specifications include G thread, NPT thread, and BSPP thread , among others, ensuring perfect compatibility.
Step-by-Step Guide to Installing Cartridge Heaters:
1. Create an exact and precise hole in the section requiring heat.
2. Ream a smooth and even hole for superior contact and maximized heat transfer efficiency.
3. Extend the hole through the section to allow for effortless removal of the unit when required.
4. If a through hole is impractical, adjust the hole size within allowable tolerances.
5. Reduce vibration and flexing of the lead wires to significantly prolong the service life of the product.
6. Prevent any liquid contamination by safeguarding the heater's terminal end.
When ordering Cartridge Heaters, kindly provide the following essential details :
1. Type of Cartridge Heater (please refer to our Termination Options for various selections).
2. Diameter of the Cartridge Heater, specified in precise measurements.
3. Overall length of the straight Cartridge Heaters, tailored to your requirements.
4. Detailed specifications on Wattage and Voltage necessary for your application.
5. Type and length of Lead (options include glass fibre / PTFE).
FAQ
(1). Q: Can you offer a discount?
A: Indeed, discounts are contingent upon the quantity. The larger the order, the more significant the discount.
(2). Q: How can I obtain a sample?
A: Generally, samples are offered complimentary for small quantities, with shipping costs borne by the customer. Alternatively, use your DHL, FEDEX, EMS, or UPS account. For larger quantities, a nominal sample fee may apply.
(3). Q: Why is your price higher than other Chinese suppliers?
A: We emphasize crafting premium, high-performance products to nurture long-lasting, friendly relations with our customers.
Although our prices may not be the lowest, the value we offer is unparalleled.
(4). Q: How do you ensure the quality of mass production matches the sample sent to me?
A: Our meticulous warehouse staff retains an identical sample marked with your company name prior to dispatching the original, ensuring consistent quality throughout production.
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