| ◇ | Full size Range | Diameter Ø12-54mm, hot zone length 100-2700mm, cold zone length 60-800mm, suitable for all industrial furnace types | |
| ▲ | Custom Shape Capability | U-shape, W-shape, straight, three-phase, spiral, and special configurations manufactured precisely to your drawings | |
| ◎ | Precise Electrical Matching | Accurate resistance control (0.3-8.6Ω) ensuring temperature uniformity and stable power output | |
| ★ | Fast Delivery | Custom samples in 7-10 days, bulk orders in 20-25 days with transparent tracking | |
We accept custom orders based on either technical drawings or parameter lists. For a quotation, please provide the following:
Parameter | Description | Example |
Diameter (OD/D1/D2) | Hot zone diameter/Cold end diameter(for straight elements,provide single diameter) | Φ14mm/ Φ20mm or Straight Φ25mm |
Hot zone Length(HZ/Le) | Length of the central heating section | 500mm |
Cold End Length(CZ/Lu) | Length of non-heating ends | 250mm |
Overall Length(OL) | Total element length | 1000mm |
Resistance(R) | Resistance at specified temperature(typically 1050℃±50℃) | 1.85Ω |
Shape | Straight,U-shape,W-shape,or other configurations | U-shape,30mm spacing |
Operating Temperature | Maximum working temperature | 1500℃ |
Atmosphere | Air,nitrogen,hydrogen,etc. | Air |
Best Practice: Providing technical drawings(PDF/DWG format) ensures 100% accurate manufacturing and minimizes communication errors.
Diameter (mm) | Hot Zone Length (mm) | Overall Length (mm) | Resistance Range(Ω) | Max Temp |
12 | 100-400 | 300-1100 | 0.8-5.8 | 1450℃ |
14 | 100-500 | 400-1200 | 0.7-5.6 | 1450℃ |
20 | 200-800 | 700-2000 | 0.6-6.0 | 1450℃ |
25 | 200-1200 | 700-2600 | 0.4-5.0 | 1450℃ |
30 | 300-2000 | 800-3600 | 0.4-4.0 | 1450℃ |
40 | 500-2700 | 1000-4300 | 0.5-3.4 | 1450℃ |
Hot Zone/Cold End Diameter(mm) | Hot Zone Length(mm) | Overall Length(mm) | Max Temp |
3/6 | 80-300 | 200-600 | 1700℃ |
4/9 | 100-400 | 300-800 | 1700℃ |
6/12 | 150-500 | 400-1000 | 1700℃-1800℃ |
9/18 | 200-800 | 500-1500 | 1800℃ |
12/24 | 250-1000 | 600-1800 | 1800℃ |
Note: Above are standard range;special size can be customized
1. Requirement Discussion — You provide parameters or drawings, we reply within 24 hours
2. Technical Confirmation — Engineers verify dimensions, resistance, and operating conditions
3. Sample Production — Sample manufactured per confirmed specs (if required)
4. Mass Production — Production completed within 20 days after order confirmation
5. Quality Inspection — 100% inspection for appearance, dimensions, and resistance
6. Safe Packaging — Foam-lined wooden cases for safe sea shipment
Important Technical Notes
· Low Temperature Brittleness (MoSi₂): MoSi₂ elements are brittle at room temperature; avoid impact and mechanical stress during installation
· Low-Temperature Oxidation Risk: Do not use MoSi₂ elements in the 400-700℃ range for extended periods, as low-temperature oxidation can damage the element
· Installation Method: U-shaped MoSi₂ elements should be vertically suspended to avoid mechanical stress on the hot zone
· Atmosphere Compatibility: SiC elements are suitable for air atmosphere; MoSi₂ elements require reduced maximum temperatures in reducing atmospheres
· Terminal Connection: Ensure terminal clamps make full contact with the aluminum-sprayed cold ends and are tightened properly to prevent arcing
Equipment
Inspection
Packing&Transport
HHSIC Frequently Asked Questions
1. What are your factory's strengths?
· Modern production lines – Automated equipment with strict process control
· ISO9001 certified – Quality management throughout every stage
· In-house R&D team – Continuous development of new materials and custom designs
2. How do you ensure product quality?
We implement rigorous quality control at every step:
· All incoming raw materials are inspected
· Sintering processes are monitored in real time
· Every element undergoes resistance testing, visual inspection, and dimensional verification
· Each batch is traceable with complete test records
3. Is there a minimum order quantity?
No. Most standard models have no MOQ – you can order just one piece. We encourage trial orders before moving to larger volumes.
4. What are your typical lead times?
· Standard products: 7-10 days
· Custom products: 15-30 days (depending on complexity)
Expedited processing is available for urgent requirements.
5. How do you handle shipping?
Shipping is arranged based on order size and customer location:
· Small quantities: Sent via DHL, FedEx, or UPS for fast delivery
· Large orders or complete furnaces: Shipped by sea or air freight, with the most cost-effective route confirmed in advance
6. Where do you export?
We ship to over 50 countries across Europe, the Americas, Southeast Asia, the Middle East, and Africa. Available trade terms include EXW, FOB, CIF, and DDP.
7. What is your warranty policy?
· Heating elements (consumables): If manufacturing defects (cracks, incorrect dimensions, abnormal resistance) are found within 30 days of receipt, contact us for replacement. Normal wear from use is not covered.
· Lifetime technical support is always available.
8. Do you provide technical support?
Yes. Our engineering team offers:
· Installation guidance and operation training
· Troubleshooting and maintenance recommendations
· Full technical documentation for OEM clients
9. Can I get samples?
Yes. Samples of selected models are available free of charge; you only pay the shipping cost. This is the best way to verify performance and compatibility before placing a bulk order.
