Small Electric Cartridge Resistance Tubular Heater
Our cartridge heater showcases a durable cylindrical stainless steel tube that promises unparalleled corrosion resistance. Within this tube lies a carefully wound heating wire, expertly coiled around a superior ceramic core, which forms the powerhouse of this top-tier heater.
The coil design is precisely tailored to match the heater's power needs, ensuring not only superb heat distribution but also extending the lifespan of the heater. This design innovation minimizes the oxidation of the heating wire, even under high-temperature conditions. Perfect for heating solids, liquids, or gases, our cartridge heaters boast exceptional heat transfer rates through conduction, given direct contact with the heat sink. They are indispensable in the manufacturing of plastic and rubber components within the automotive sector and are equally critical in food processing, chemical production, electronics, medical equipment, packaging, and the nuclear industry.
Beyond our comprehensive standard offerings, we excel in custom-designing and manufacturing cartridge heaters that are perfectly aligned with your specific requirements.
Cartridge heaters embody a crimped-on or swaged-in construction that integrates a superior nickel-chromium resistance wire, ensuring outstanding performance.
This wire is artfully wound around a top-quality MgO core, which is expertly centered within a robust stainless steel casing.
Cartridge heaters are engineered for a multitude of heating applications, such as heating metal parts and liquids, especially when fitted with threaded bushings. They are capable of achieving metal temperatures soaring up to 760°C, delivering peak performance with precise material, watt density, and fit selections.
Performance capabilities:
1. Achieve part temperatures soaring to 1400°F (760°C) with an alloy 800 sheath
2. Watt densities reaching up to an impressive 40W/cm²
3. Operates at a voltage range of up to 480VAC, with a minimum voltage as low as 5VAC
4. Available in diameters as compact as 3mm
5. Maximum diameter options up to 35mm
Benefits:
1. Installation is both straightforward and cost-effective
2. Crafted from top-tier materials
3. Enhanced efficiency in heat transfer
4. Maintenance is effortless and hassle-free
5. Ensures even and consistent temperature distribution
6. Offers robust resistance to oxidation and corrosion
7. Unmatched in durability and reliability
8. Certified to meet TÜV Rheinland standards with CE certification
Technical Details:
1. Tube diameter: Φ3mm-Φ30mm
2. Tube Material: Options include SS304; SS316, SS321, NICOLOY800, etc.
3. Insulation Material: Composed of high-purity MgO
4. Resistance wire element: Utilizes Ni-Cr or FeCr
5. Lead Connection Options: Available in crimped or swaged leads
6. Lead and Type of Connection Leads: Our standard 10" fiberglass leads are designed to provide dependable connections, ensuring seamless integration into your system.Wire Options: Choose from our premium selection of silicone and high-temperature fiberglass wire options to meet your specific application requirements..
Specification of Cartridge Heaters: Delve into the robust specifications of our cartridge heaters, crafted for efficiency and durability.
| 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: Explore unique features that make our heaters a premier choice for industrial applications.
Common cartridge heaters can be divided into two types based on density, each tailored to specific thermal demands:
1. High Power Density: Capable of achieving heat area surface power of 10~25 W/cm², ideal for demanding thermal applications.
Working temperature ≤ 450°C, perfect for high-intensity heating tasks.
2. Middle to Low Power Density: Offers heat area surface power of 5~11 W/cm², suitable for moderate thermal requirements.
Working temperature ≤ 300°C, well-suited for less intensive heating applications.
Voltage: 12~250V (or as per requirement), providing versatility to meet your power specifications.
High Density Construction:
Our high-quality stainless steel construction provides unparalleled longevity and protection, even in the most challenging industrial conditions.
With a stainless steel sheath, enjoy watt density up to 50 W/cm² and operating temperatures soaring to 800°C.
More Photos of Our Cartridge Heaters: Take a visual tour of our state-of-the-art cartridge heaters.
Factors - How to Choose the Right Cartridge Heaters:
Consider these critical factors to select the perfect cartridge heater for your needs:
1. Operating temperature, a key determinant of heater performance.
2. Watt density of the heating element, ensuring efficiency and effectiveness.
3. Sheath material (corrosive or non-corrosive), pivotal for durability and lifespan.
-
- Temperature of the corrodent, influencing material selection.
-
- Degree of aeration of exposed corrodent, affecting heating efficiency.
-
- Velocity of the corrodent, impacting overall performance.
Dimensional Data:
(Explore the table for minimum and maximum sheath lengths based on 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 |
(Consult this guide for recommended maximum sheath lengths, with the possibility of customizing longer lengths.)
Termination Options:
1. Swaged-in Flexible Leads:
Opt for swaged-in flexible leads with silicone-fiberglass insulation, perfect for applications requiring lead bending at the heater exit.
Standard 250mm
(10 in.)
leads are provided unless longer lengths are specified.
For heaters measuring 150mm
(6 in.)
or shorter, a 6mm
(1/4 in.)
no-heat section is typical. For heaters up to 250mm
(10 in.)
a 25mm
(1 in.)
no-heat section is essential. Lengths beyond 250mm may demand more than 25mm. Specify to orderswaged-in flexible leads.
2. Right Angle Leads:
Right angle leads are optimal for situations involving high flexing and tight space constraints. Wires exit at a 90° angle from the heater sheath.
A right-angle tube may be required for certain builds. Specify to orderright angle leads and desired lead length for a perfect fit.
| 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 meticulously designed to safeguard leads from abrasion against sharp edges, ensuring durability and reliability.
For different lead exit configurations, we offer tailored solutions: When leads exit straight out, the braid is swaged into the no-heat section of the heater. For right-angle exits, a crimp connector firmly attaches the braids, providing seamless integration.
Unless otherwise specified, our standard leads measure 250 mm
(10 in.)
in length. The braid is 200 mm
(8 in.)
long. To customize your order, please specify your preference for straight or right-angle stainless steel braid, lead length, and 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
Our stainless steel hose provides superior protection against abrasion from sharp edges or abrasive equipment. It also ensures ease of handling and streamlined wiring in demanding environments.
For right-angle lead exits, the hose is securely silver soldered to the sheath. Unless otherwise specified, standard leads are 250 mm(10 in.) in length and the hose measures 200 mm(8 in.)in length. To order, please specify stainless steel hose, lead length, and 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
Our galvanized conduit offers protection equivalent to stainless steel hose against abrasion.
The conduit is attached with a 90° elbow copper coupler, securely overlapping the heater sheath. Unless specified, we provide a standard 200 mm(8 in.)conduit, with leads 50 mm longer than the conduit. To order, specify galvanized conduit, lead length, and 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 ceramic bead insulation offers exceptional protection for leads in high-temperature environments above 450°C(840°F).The ceramic beads fit over solid conductors and extend to cooler areas where flexible wires can be securely attached. To order, specify ceramic beads and length, and additional lead length requirements.
7. Versatile Stainless Steel Flanges
Our stainless steel flanges provide both a convenient mounting method and an effective way to position heaters within applications. Flange style and specifications are tailored to customer requirements. These flanges can be positioned in any no-heat section of the heater sheath. To order, specify flange, flange size, and location. .
Immersion Cartridge Heaters for Liquid Applications:
For liquid immersion heating applications, we recommend using brass or stainless steel threaded bushings.
The size of the threaded bushing is matched according to the pipe diameter. Available specifications include
G thread, NPT thread, and BSPP thread , among others.
Step-by-Step Guide to Installing Cartridge Heaters:
1. Carve out a precise aperture in the area designated for heating, ensuring accuracy and effectiveness.
2. Expertly ream a smooth hole to guarantee optimal contact and superior heat transfer capabilities.
3. Extend the aperture through the material to enable effortless removal of the unit whenever required.
4. If a through hole isn't possible, gently enlarge the hole dimensions within permissible tolerances.
5. Minimize vibrations and flexing of the lead wires to significantly prolong service life.
6. Safeguard the heater's end to prevent any potential liquid contamination.
When ordering Cartridge Heaters, kindly furnish the following details: :
1. Specify the Type of Cartridge Heater (refer to Termination Options for guidance).
2. Indicate the Diameter of Cartridge Heater required.
3. Provide the Overall Length of the straight Cartridge Heaters.
4. State the Wattage and Voltage specifications needed.
5. Specify the Type of Lead (glass fibre / PTFE) and the desired lead length.
FAQ
(1). Q: Can you offer a discount?
A: Discounts are contingent upon the quantity ordered. Greater quantities yield greater discounts.
(2). Q: How can I obtain a sample?
A: For most products, we offer complimentary samples provided the quantity is minimal, with shipping costs borne by the customer. Alternatively, supply your DHL, FEDEX, EMS, or UPS account number. For larger quantities, a sample fee might be applicable.
(3). Q: Why is your price higher than other Chinese suppliers?
A: Our commitment is to crafting superior, high-performance products, fostering enduring and amicable customer relationships.
Our prices might not be the lowest, but our cost-efficiency is unmatched.
(4). Q: How do you ensure the quality of mass production matches the sample sent to me?
A: Our dedicated warehouse team retains an identical sample labeled with your company name before dispatching the original to you, ensuring unwavering production quality.
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