Electric Resistance Water Immersion Cartridge Heater with Flange or Thread
Our superbly engineered cartridge heater boasts a sturdy cylindrical stainless steel tube, offering unparalleled resistance against corrosion. Inside, a masterfully wound heating wire encircles a top-grade ceramic core, which is the powerhouse of this exceptional heater.
Each coil is expertly customized to match the heater's power requirements, ensuring superb heat distribution and an extended heater lifespan. This advanced design reduces heating wire oxidation, even at high temperatures. Perfect for heating solids, liquids, or gases, our cartridge heaters demonstrate superior heat conduction when in direct contact with the heat sink. They play a crucial role in manufacturing plastic and rubber parts for the automotive industry and are indispensable in food processing, chemical, electronics, medical equipment, packaging, and nuclear industries.
Besides our extensive standard offerings, we excel in custom-designing and creating cartridge heaters specifically crafted to fulfill your exact requirements.
Cartridge heaters are made with a crimped-on or swaged-in construction, featuring a high-quality nickel-chromium resistance wire that guarantees outstanding performance.
This wire is expertly wound around a high-grade MgO core, perfectly centered within a robust stainless steel casing.
Cartridge heaters are meticulously engineered for a variety of heating applications, including metal parts and liquid heating when paired with threaded bushings. Capable of reaching metal temperatures up to an impressive 760°C, these heaters deliver optimal performance when the right material, watt density, and fit are chosen.
Performance capabilities:
1. Part temperatures can reach an astonishing 1400°F (760°C) with an alloy 800 sheath
2. Watt densities can achieve an impressive 40W/cm²
3. Maximum operating voltage up to a robust 480VAC, with a minimum as low as 5VAC
4. Minimum diameter as fine as 3mm
5. Maximum diameter reaching up to 35mm
Benefits:
1. Effortless and cost-effective installation
2. Crafted from the finest materials available
3. Superior heat transfer efficiency
4. Simple, hassle-free maintenance
5. Consistent and uniform temperature distribution
6. Highly resistant to oxidation and corrosion
7. Remarkable durability
8. Endorsed with TÜV Rheinland certification (CE certified)
Technical Details:
1. Tube diameter: Φ3mm-Φ30mm
2. Tube Material: Options include SS304; SS316, SS321, NICOLOY800, and beyond.
3. Insulation Material: Constructed from high-purity MgO
4. Resistance wire element: Available in Ni-Cr or FeCr
5. Lead Connection Options: Crimped or Swaged leads ensure secure and reliable connections, enhancing the longevity and performance of your heater system.
6. Lead and Type of Connection Leads: 10" Fiberglass Standard offers durability and heat resistance for diverse applications.Wire Options: Choose from Silicone or High Temperature Fiberglass to suit your specific operational needs and environmental conditions..
Specification of Cartridge Heaters: Discover the engineered excellence and reliable performance embedded in every cartridge heater.
| 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: tailored for different industrial applications.
1. High Power Density: Heat area surface power 10~25 W/cm² brings superior heating efficiency for demanding tasks.
Working temperature ≤ 450°C ensures adaptability to high-temperature environments.
2. Middle to Low Power Density: Heat area surface power 5~11 W/cm² is perfect for moderate heat requirements.
Working temperature ≤ 300°C suitable for less intensive heating needs.
Voltage: 12~250V (or as per requirement) offers versatile power options for varied applications.
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: Explore our gallery for a closer look at the precision and quality of our products.
Factors - How to Choose the Right Cartridge Heaters:
Consider the following factors to select the right cartridge heater, ensuring optimal performance and efficiency:
1. Operating temperature - Critical for compatibility with your heating requirements.
2. Watt density of the heating element - Key for determining energy efficiency.
3. Sheath material (corrosive or non-corrosive) - Select based on your environment to maximize durability.
-
- Temperature of the corrodent - Influences material choice and longevity of the heater.
-
- Degree of aeration of exposed corrodent - Affects the corrosion rate and heater integrity.
-
- Velocity of the corrodent - Impacts heat distribution and the overall effectiveness of the heater.
Dimensional Data:
(This table shows minimum and maximum sheath lengths for available diameters, providing guidance for custom applications.)
| |
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, accommodating specific needs.)
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, ensuring flexibility and durability.
Unless a longer length is specified, 250mm
(10 in.)
leads are supplied for standard installations.
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 specify swaged-in flexible leads, designed for innovative performance and ease of use.
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, optimizing spatial efficiency and functionality.
A right-angle tube may be necessary for certain constructions. To order, specify to ensure precise compatibility.right angle leads and lead length.
| 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 Braid
Our robust stainless steel braid is expertly crafted to provide exceptional protection for the leads, guarding them against abrasion from sharp edges and ensuring outstanding durability and unwavering reliability.
For a variety of lead exit configurations, we offer meticulously tailored solutions: When leads exit straight out, the braid is expertly swaged into the no-heat section of the heater for a secure fit. For right-angle exits, a crimp connector firmly attaches the braids, facilitating seamless and sophisticated integration.
Unless otherwise specified, our standard leads are designed to measure 250 mm
(10 in.)
in length. The braid measures 200 mm
(8 in.)
long. To personalize your order, please specify your desired choice of straight or right-angle stainless steel braid, lead length, and no-heat section requirements, ensuring a perfect fit for your specific needs.
| 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
Our stainless steel hose is designed to offer superior protection against abrasion from sharp edges or abrasive equipment, while also ensuring easy handling and streamlined wiring in the most demanding environments.
For right-angle lead exits, the hose is precisely silver soldered to the sheath for a secure attachment. Unless otherwise specified, standard leads measure 250 mm(10 in.) in length, and the hose measures 200 mm(8 in.)in length. To order, please specify your requirements for stainless steel hose, lead length, and no-heat section to achieve optimal performance.
| |
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
Our galvanized conduit provides protection equivalent to that of stainless steel hose, offering robust abrasion resistance.
The conduit is attached with a 90° elbow copper coupler, securely overlapping the heater sheath for a dependable fit. Unless specified, we provide a standard 200 mm(8 in.)conduit, with leads extending 50 mm longer than the conduit. To order, specify galvanized conduit, lead length, and no-heat section to suit your application.
| |
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 ceramic bead insulation is designed to offer exceptional protection for leads operating in high-temperature environments exceeding 450°C(840°F).The ceramic beads are meticulously fitted over solid conductors and extend to cooler areas where flexible wires can be securely attached. To order, specify ceramic beads and length, and any additional lead length requirements to ensure precise customization.
7. Versatile Stainless Steel Flanges
Our stainless steel flanges offer a convenient mounting method and an effective means of positioning heaters within applications. Flange style and specifications are tailored precisely to customer requirements. These versatile flanges can be positioned in any no-heat section of the heater sheath. To order, specify flange, flange size, and location to ensure seamless integration. .
Immersion Cartridge Heaters for Liquid Applications:
For liquid immersion heating applications, we recommend the use of brass or stainless steel threaded bushings to ensure optimal performance.
The size of the threaded bushing is carefully matched according to the pipe diameter. Available specifications include
G thread, NPT thread, and BSPP thread , among others, providing versatile options for varied applications.
Comprehensive Step-by-Step Guide to Installing Cartridge Heaters:
1. Begin by crafting a precise hole in the section that requires heating.
2. Ream a smooth and even hole to ensure optimal contact and superior heat transfer.
3. Extend the hole seamlessly through the section to allow for effortless removal of the unit when required.
4. If creating a through hole is impractical, adjust the hole size within the acceptable tolerances to maintain efficiency.
5. Diminish any vibration and flexing of the lead wires for prolonged service life.
6. Safeguard the heater's end to prevent any liquid contamination and ensure longevity.
When placing an order for Cartridge Heaters, kindly provide the following details for a personalized experience :
1. Specify the Type of Cartridge Heater (please refer to Termination Options for guidance).
2. State the Diameter of the Cartridge Heater.
3. Detail the Overall Length of the straight Cartridge Heaters.
4. Indicate the Wattage and Voltage specifications.
5. Clarify the Type of Lead (glass fibre / PTFE) and specify the desired lead length.
Frequently Asked Questions
(1). Q: Can you provide a discount?
A: Discounts are contingent upon the order quantity. The larger the purchase, the more significant the discount offered.
(2). Q: How can I receive a sample?
A: For most products, we offer free samples if the quantity is limited, with the customer covering shipping fees. Alternatively, you may provide your DHL, FEDEX, EMS, or UPS account number. For bulk sampling, a fee may apply.
(3). Q: Why is your pricing higher than other Chinese suppliers?
A: Our commitment is to manufacturing premium, high-performance products, fostering long-lasting, positive relationships with our clientele.
Though our prices might not be the lowest, the overall value and cost performance we offer are unparalleled.
(4). Q: How do you maintain quality consistency between mass production and the sample sent to me?
A: Our warehouse team preserves an identical sample labeled with your company name before dispatching the original, ensuring consistent production quality across all units.
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