About Caldor Heat Engineering
Where Industrial Challenges Become Heating Solutions
Our work begins with the application. We consider the required temperature, available space, electrical conditions, process medium and installation environment before selecting the construction and materials. This allows us to supply anything from a single replacement heater to repeat production for machinery manufacturers.
Electric heaters manufacturer
Our products and services make it possible to carry out a wide range of industrial processes in which heat plays a defining role.
Plastic Industry
Metal Processing Industry
Packaging Industry
Composite Materials Industry
Automotive Industry
Food Industry
Our Background
The Ozzeybek family began working in the industrial heating sector in 2000, following many years of experience in plastics processing, industrial machinery and production modernization. Manufacturing of electric heating elements began in 2001.
Operations in Romania started in 2014, followed by local production in 2015. In 2025, we completed the modernization of our manufacturing facility in Buftea.
Today, Caldor brings together practical manufacturing experience and a five-person engineering team. Our aim is straightforward: understand the customer’s process and manufacture a product that is appropriate for the actual operating conditions.
2000 →
Entry into Industrial Heating
2001 →
Heating Element Manufacturing Begins
2014-2015 →
Operations and Production in Romania
2025 →
Modernized Facility in Buftea
Manufacturing in Romania
Our 600 m² facility in Buftea supports a team of 40 people, including 25 production personnel and five engineers.
We manufacture prototypes, individual replacement heaters, small batches and repeat OEM orders. Approximately 93% of our production is made to customer specifications.
Our main production groups include:
- Mica and ceramic band heaters
- Nozzle heaters
- Heat-cool combinations
- Mica and ceramic plate heaters
- Cartridge heaters
- Tubular and microtubular heating elements
- Screw-plug and flanged immersion heaters
- Quartz heating units
- Ceramic infrared heaters
- Finned air heaters
- Temperature sensors and control assemblies
- Custom heating equipment
Production capacity depends on the construction and complexity of the product. Band heater output generally ranges from 40 to 200 units per day, while total production across all product groups can reach approximately 300 to 500 heating elements per day.
Orders may range from a single custom unit to series of more than 10,000 pieces.
Custom Heating Solutions
Most of the products we manufacture are developed for a particular machine or process. Customers can send us a drawing, an existing sample or the technical details of the application.
For an initial evaluation, we normally require:
Dimensions and installation details
Voltage and required power
Operating and target temperatures
Material or medium being heated
Quantity
Available drawing or photograph
Initial technical evaluation is provided without charge, and quotations are normally prepared within 48 hours after receiving the necessary information. Following confirmation of the order and advance payment, we prepare the production drawing and submit it for customer approval.
Our individual heating elements range from 10 W to 30 kW. We also engineer complete heating systems with total installed capacities of up to 1.5 MW.
Materials and Operating Conditions
No heating element is suitable for every application. Material and construction are selected according to temperature, pressure, corrosion, surface load, process medium and expected service life.
Depending on the project, we work with AISI 304, 316L, 316Ti, 321 and 329, as well as Incoloy, Inconel, Hastelloy and titanium.
Available electrical and thermal insulation materials include compacted magnesium oxide, mica, technical ceramics, fiberglass, basalt fiber, ceramic fiber and quartz.
Our product range covers different operating temperatures. Mica heaters are generally used at lower and medium temperatures, while ceramic, cartridge, infrared and special furnace technologies cover progressively higher ranges. For specialized furnace applications, we can also integrate Kanthal alloy and silicon carbide heating technologies.
The final temperature limit is always determined by the selected product, material, surface load, installation and operating environment. It is therefore confirmed individually in the approved technical specification.
Testing and Traceability
Every manufactured product undergoes electrical safety testing. Power and dimensional checks are performed according to the applicable production and sampling plan.
Depending on the product, testing may include:
- Resistance measurement
- Voltage and power verification
- Insulation resistance testing
- Dielectric strength testing
- Leakage-current testing
- Dimensional inspection
- Sensor and connection verification
- Final visual inspection
Test voltages and acceptance limits are selected according to the product type and the applicable standard.
Products can be laser-marked with voltage, power, production date, batch information and customer reference. Test reports and material documentation can also be supplied when agreed as part of the order.
Quality and Compliance
Caldor Heat Engineering operates with the following management system certifications:
- ISO 9001
- ISO 14001
- ISO 45001
Products are designed and manufactured according to the applicable European directives and relevant EN/IEC requirements.
CE declarations of conformity are issued where applicable. Selected immersion heaters are ATEX-certified for Zone 1 and Zone 2 applications. Selected cartridge and immersion heater products are also available with UL and UKCA certification.
Because compliance requirements vary according to the product and application, the relevant certification is confirmed during the technical evaluation and stated in the commercial and technical documentation.
Industries We Work With
We supply heating products and engineering support to customers in:
- Machinery and OEM manufacturing
- Plastics processing
- Food-processing and HoReCa equipment
- Packaging
- Chemical processing
- Oil and gas
- Marine and port applications
- Automotive manufacturing
- Pharmaceutical and medical equipment
- Aerospace and defence
- Metal, glass, ceramic and wood processing
Some projects are covered by confidentiality agreements. For this reason, customer or project information is published only when permission has been granted.
International Experience
Around 80% of our production is exported. We work with customers across Europe and in 14 countries outside Europe.
Since beginning our activities, we have supplied more than 1,500 customers, including 145 corporate and OEM customers. According to our 2026 customer report, recorded customer satisfaction is 98%.
The following figures describe our current operations:
- 93% custom production
- More than 600 standard configurations
- 1,500+ customers served
- 145 corporate and OEM customers
- 80% export activity
Building & Construction Industry
Healthcare Industry
Pharmaceutical Industry
Glass Industry
Wood Industry
Aerospace and Defence Industry
A Message from the Ozzeybeck Family
For more than 30 years, our family has worked with plastics processing, industrial machinery and production technologies. This experience taught us that choosing a heating element begins with understanding the machine and the process in which it will operate.
At Caldor, we listen to the customer, examine the critical points of the application and try to find practical answers to technically difficult projects. We focus on reliable performance, sensible energy use and products designed for a long working life.
Our principle remains simple: understand what the customer needs and provide the right solution for the application.
Ozzeybek Family
Founder, Caldor Heat Engineering
Your Industrial Heating Element Supplier
We continuously implement the latest production technologies, and our design team is composed exclusively of highly experienced engineers dedicated to ensuring the reliability and long-term performance of our clients’ projects.
56+
We export our products to countries worldwide.
98%
Satisfaction
600+
Standard products
Discuss Your Application With Us
Send us your technical requirements, drawing or existing product details. Our team will review the application and normally respond with an initial quotation within 48 hours.
Email: caldor@caldorheat.com
Telephone and WhatsApp: +40 799 335 355
Working hours: Monday–Friday, 08:30–17:00
Address: Strada Crizantemei 43, C1/1, 070000 Buftea, Ilfov, Romania