CBF-200-E 20 t Electric Car Bottom Furnace
- Brand: OEM FURNACE
- Product Code: CBF-200-E
CBF-200-E is an electrically heated car bottom (bogie hearth) furnace with a maximum charge of 20 t, designed for stress relieving, tempering and annealing up to 950 °C. The load is placed on the rail-mounted car outside the furnace by crane, the car is pushed in and the door is closed, so heavy and bulky welded structures, castings and forgings are charged easily. We design the furnace from the load outwards: usable volume, heating layout and insulation follow the real size of the charge.
Ceramic fibre module insulation
Walls and roof are lined with 250 mm Z-block ceramic fibre modules. The light lining stores little heat, so the furnace heats up and cools down quickly and uses less energy per cycle.
Heating layout
FeCrAl spiral elements on ceramic tubes hang on support bricks along the side and rear walls in rows 120 mm apart. Each row is wound from a single wire. A firebrick ledge at the foot of the walls protects the elements during loading. In this size each row carries 3 circuits, brought out to intermediate terminal boxes on the side wall.
Car and sand seal
The car has a monolithic cast refractory hearth on a steel frame and runs on 5 axles with Ø250 wheels on rails set into the floor. The car is sealed to the body by a sand knife on the car edge dipping into a sand trough on the body. The rails are bolted to sleepers embedded in the floor.
Hinged door
The door swings sideways and is pressed against the opening frame by 3 hinges and 4 handwheel clamping sets. A support wheel at the free end of the door runs on a formed steel track in the floor, so the large door opens without loading the hinges.
Bolted, easy-to-service design
The casing is built from formed steel sections, bolted together; welding is used only where needed. Parts can be removed and refitted, which makes maintenance and later options easy. The control panel stands beside the furnace; cables reach the terminal boxes through a cable tray fixed to the furnace frame.
Technical data
| Product code | CBF-200-E (Car Bottom Furnace, Electric) |
|---|---|
| Max. charge | 20 t |
| Usable size (W × L × H) | 2,500 × 5,000 × 1,600 mm |
| Usable volume | 20 m³ |
| Chamber (W × L × H) | 3,100 × 5,430 × 1,800 mm |
| Max. operating temperature | 950 °C |
| Installed power | 421.2 kW, 3-phase 380–400 V 50 Hz |
| Line current | ≈608 A |
| Heating | 12 rows × 3 circuits = 36 circuits, FeCrAl spirals (Ø4 mm wire) |
| Heating rate (calculated, max. charge) | ≈100 °C/h |
| Insulation | Walls and roof 250 mm Z-block ceramic fibre modules |
| Car | Cast refractory hearth, 5 axles, Ø250 wheels |
| Car travel / rail length | ≈6,203 mm / ≈12,803 mm |
| Sealing | Sand seal (sand knife on car, sand trough on body) |
| Door | Side-hinged, 3 hinges, 4 handwheel clamps, support wheel |
| Overall size (W × L × H) | 3,766 × 6,066 × 2,806 mm (excluding panel and rails) |
| Weight (approx.) | ≈15,940 kg (incl. refractory, insulation and heating; excl. charge) |
We manufacture the furnace together with the body, car, rails, heating elements and control panel, and install and commission it on site. Other sizes, a gas-fired (process burner) version and options such as a circulation fan are discussed at quotation stage.
For price and lead time, use the Request a Quote button or call +90 533 945 27 94.
Tags: CBF-200-E, 20 t car bottom furnace, car bottom furnace, bogie hearth furnace, stress relieving furnace, tempering furnace, annealing furnace, electric heat treatment furnace