The HWU 7000/85 Air Circulating Truck Furnace from the HWU series has a volume of 7000 litres and is suitable for temperatures up to 850°C.
3-side heating provides the best possible transfer of energy to the firing chamber. ROHDE-designed air circulating fans are decoupled from the drive motor and are quiet, durable and easy to service.
KANTHAL-A1 heating elements and a 2-layer insulation structure ensure an ideal temperature rise even in the upper temperature range resulting in very low energy consumption. Other product characteristics are corrosion protection due to the fully in-frame ventilated steel construction and the mortar-free ceiling of lightweight firebricks with R-SiC ceiling supports.
- 3-side heating
- Heating elements recessed into bricks
- 2-layer insulation structure
- Powerful air circulating fan
- Product group
- Truck Furnace
- HWU series
- Energy type
- 160 kW
- 235 A
- 7000 litres
- Int. dimensions
- 1250 x 4000 x 1400 mm
- Ext. dimensions
- 1850 x 4600 x 2400 mm
- 8000 kg
- Heating elements
- Recessed into bricks
- Jumo IMAGO 500
Torsion-resistant welded steel housing
The housing consists of a torsion-resistant welded construction. Each furnace is manufactured by hand and leaves the factory after undergoing extensive quality controls.
Corrosion protection due to stainless steel in-frame ventilation
The fully in-frame ventilated steel construction contributes to low external temperatures and combined with stainless steel components provides effective protection against corrosion.
Durable textured paint finish
The high-quality light-grey RAL 7035 textured coating protects the furnace body and steel construction.
Air circulation allows for high temperature uniformity
ROHDE-designed air circulating fans are decoupled from the drive motor and are quiet, durable and above all easy to service.
Robust swing door allows for safe opening
The convenient operation of the swing door allows easy opening of the furnace. The solid door handle ensures smooth operating procedures even when opening the hot furnace while the process is running.
Flexible door sealing allows for thorough door closing
A flexible insulating cord ensures a seal between the door and the furnace opening. Minor unevenness can be corrected and the door can be closed flush with the furnace.
Lockable door catch
The robust door catch guarantees safe closing and locking of the door.
Stainless steel door frame protects against the effects of heat
The door frame is reinforced with stainless steel sheets and protects the construction against the effects of heat.
Air supply handle
The manual air supply handle ensures the best possible ventilation of the furnace interior.
Exhaust air flap handle
The manual exhaust air flap handle is available for the controlled removal of gases and hot exhaust air.
Easy loading using a truck on rails
The rail-mounted truck is equipped with high-quality rollers mounted on ball bearings that ensure extremely smooth and safe movement with maximum durability.
Flexible and adjustable truck sealing
The truck is fitted with a conical insulating cord providing optimum sealing of the furnace floor and preventing incoming draughts.
Efficient 2-layer insulation structure
A sophisticated 2-layer insulation structure allows for required temperatures to be achieved using less energy. High energy efficiency can be achieved even in continuous use.
First-class useful volume
All insulating materials are processed precisely and carefully. Lightweight firebricks in the firing chamber are characterised by a high insulation value and good thermal shock resistance.
Covered heating elements on the floor
A high-quality SiC plate protects heating elements mounted on the floor. The SiC plate guarantees good heat transfer and at the same time protects the heating elements from damage.
Unique system prevents particles falling onto the products
ROHDE uses a unique concept of mortar-free lightweight firebricks combined with R-SiC ceiling supports preventing cracks and particles falling onto the products.
Easy-to-maintain switchgear mounted in a Rittal switch cabinet
The switchgear is mounted in a Rittal switch cabinet and can be easily maintained and accessed.
Integrated safety due to safety switch
A door contact switch automatically isolates the heating elements from the power supply when the kiln opens. The integrated overtemperature protection prevents damage to electrical components.
Low-wear contactors for control
The furnace is controlled by low-wear, durable contactors.
3-side heating allows for good heat distribution
All-around heating (on the side walls) combined with floor heating results in very good heat distribution throughout the firing chamber.
Durable heating elements made of “Kanthal A1”
We are committed to minimal surface load and precise manufacture when dimensioning “Kanthal A1” heating elements, so a long service life is guaranteed.
Heating elements securely recessed into bricks
Heating elements are recessed in protected position into bricks and achieve high energy input and provide ideal protection against mechanical damage.
Heating elements can be easily accessed and serviced
An easy-to-access detachable cover for heating element connections allows the effortless replacement of heating elements.
Precise temperature measurement with the “Type S” thermocouple
The installed PtRhPt thermocouple (type S) is protected against damage and guarantees exact temperature measurement at all times.
Components from well-known manufacturers contribute to long service life
We only obtain our electric components from well-known manufacturers (e.g. SIEMENS, MOELLER, WEIDMÜLLER, RITTAL).
Furnace construction in accordance with DIN EN 746-1
The unit is constructed and manufactured in accordance with DIN EN 746-1 Industrial Thermoprocessing Equipment.
Switchgear design in accordance with DIN EN 60519
The switchgear is designed in accordance with DIN EN 60519 Safety in Installations for Electroheating.
2-year warranty despite intense use
We deliberately refuse to reduce the warranty period despite commercial furnaces being used intensely except parts that are subject to wear.