Stainless Steel Firerod Electric Cartridge Heaters for Medical 3D Printer
Our state-of-the-art cartridge heater is expertly crafted with a durable cylindrical stainless steel tube, providing unrivaled resistance to corrosion. At its core lies an exquisitely wound heating wire, wrapped around a top-tier ceramic core, which forms the essence of this high-efficiency heater.
Ingeniously designed with a coil count meticulously aligned with the heater's power requirements, it ensures superb heat distribution while significantly extending the heater's service life. This innovative design effectively curtails oxidation of the heating wire, even under high-temperature conditions. Whether in solid, liquid, or gas heating applications, our cartridge heaters are second to none in swiftly conducting heat when directly contacting the heat sink. Essential for manufacturing plastic and rubber parts in the automotive sector, these heaters are equally indispensable across food processing, chemical, electronics, medical equipment, packaging, and nuclear industries.
In addition to our extensive array of standard options, we pride ourselves on custom-developing and manufacturing cartridge heaters specifically crafted to align with your distinct requirements.
Cartridge heaters boast a crimped-on or swaged-in construction, featuring a high-quality nickel-chromium resistance wire, ensuring unparalleled performance.
The resistance wire is intricately wound around a high-quality MgO core, perfectly aligned within a robust stainless steel casing.
Cartridge heaters are ingeniously engineered for a wide range of heating applications, from metal parts to liquid heating when equipped with threaded bushings. Capable of reaching metal temperatures up to a remarkable 760°C, these heaters ensure top-notch performance when paired with optimal material, watt density, and fit selections.
Performance capabilities:
1. Part temperatures reaching an impressive 1400°F (760°C) with a robust alloy 800 sheath
2. Watt densities soaring up to 40W/cm²
3. Maximum operating voltage reaching a robust 480VAC, with a minimum as low as 5VAC for delicate applications
4. Minimum diameter as precise as 3mm
5. Maximum diameter extending up to 35mm
Benefits:
1. Effortless and cost-effective installation
2. Constructed with the finest materials for lasting quality
3. Superior heat transfer efficiency
4. Hassle-free maintenance
5. Consistent and uniform temperature distribution
6. Resistance against oxidation and corrosion
7. Outstanding durability for prolonged use
8. Certified by TÜV Rheinland, holding prestigious CE certification
Technical Details:
1. Tube diameter: Ranging from Φ3mm to Φ30mm
2. Tube Material: Options include SS304, SS316, SS321, NICOLOY800, etc.
3. Insulation Material: Composed of high-purity MgO for superior insulation
4. Resistance wire element: Available in Ni-Cr or FeCr for optimal performance
5. Lead Connection Options: Choose from crimped or swaged leads for versatile connectivity
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.
| 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 engineered to provide unparalleled protection for leads against abrasion from sharp edges. This ensures both durability and reliable performance.
To accommodate varying lead exit configurations, we offer bespoke solutions: For straight lead exits, the braid is seamlessly swaged into the heater's no-heat section, while for right-angle exits, crimp connectors firmly secure the braids, ensuring flawless integration.
Unless specified otherwise, our standard leads are elegantly designed to be 250 mm
(10 in.)
long. The stainless steel braid measures 200 mm
(8 in.)
in length. To personalize your order, please specify your preferences regarding straight or right-angle stainless steel braid, lead length, and no-heat section specifications.
| 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
Crafted for excellence, our stainless steel hose ensures superior protection against abrasions from sharp edges or abrasive equipment. It also provides ease of handling while simplifying wiring in challenging environments.
For right-angle lead exits, the hose is expertly silver soldered to the sheath. Unless specified, our standard leads are crafted to be 250 mm(10 in.)long, with the hose measuring 200 mm(8 in.)in length. To place an order, please specify stainless steel hose, desired lead length, and no-heat section needs.
| |
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 robust protection equivalent to that of a stainless steel hose against abrasion.
The conduit features a 90° elbow copper coupler, securely overlapping the heater sheath. Unless otherwise specified, we provide a standard 200 mm(8 in.)conduit, with leads extending 50 mm longer than the conduit itself. For ordering, please specify galvanized conduit, lead length, and no-heat section requirements.
| |
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 provides exceptional protection for leads in high-temperature environments exceeding 450°C(840°F).The ceramic beads are designed to fit over solid conductors, extending to cooler zones where flexible wires can be securely connected. To order, specify ceramic beads and their desired length, along with any additional lead length specifications.
7. Versatile Stainless Steel Flanges
Our versatile stainless steel flanges offer both a practical mounting solution and an effective method to position heaters within various applications. Flange style and specifications can be tailored to meet customer requirements. These flanges can be positioned in any no-heat section of the heater sheath. To order, specify flange type, size, and location. .
Immersion Cartridge Heaters for Liquid Applications:
For seamless liquid immersion heating applications, we recommend employing brass or stainless steel threaded bushings.
The size of each threaded bushing is expertly matched to the corresponding pipe diameter. Available specifications include
G thread, NPT thread, and BSPP thread among others.
Step-by-Step Guide to Installing Cartridge Heaters:
1. Skillfully create a precise hole in the section that needs heating.
2. Ream a flawlessly smooth hole to ensure optimal contact and enhance heat transfer efficiency.
3. Extend the hole through the section to allow effortless removal of the unit when necessary.
4. If creating a through hole is not feasible, increase the hole size within acceptable tolerances.
5. Carefully minimize vibration and flexing of the lead wires to significantly extend the service life.
6. Prevent liquid contamination by diligently protecting the end of the heater.
When placing an order for Cartridge Heaters, kindly provide the following details :
1. Type of Cartridge Heater (please refer to the Termination Options).
2. Diameter of the Cartridge Heater.
3. Overall length of the straight Cartridge Heaters.
4. Wattage and Voltage specifications.
5. Type of Lead (glass fibre / PTFE) and the length of the lead.
FAQ
(1). Q: Can you offer a discount?
A: Our discount policy depends on the order quantity. The larger the order, the more substantial the discount.
(2). Q: How can I obtain a sample?
A: For most products, we offer samples free of charge for small quantities, with shipping costs covered by the customer. Alternatively, you may provide your DHL, FEDEX, EMS, or UPS account number. For larger quantities, a sample fee may apply.
(3). Q: Why is your price higher than other Chinese suppliers?
A: Our focus is on producing high-quality, high-performance products, fostering long-term relationships with our customers.
While our prices may not be the lowest, our cost performance offers the highest value.
(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 marked with your company name before sending the original, ensuring consistent production quality.
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