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HOMEProductsDrying OvenDH650
Industrial Fine Oven - 500 deg.C, Forced Convection

A high temperature fine oven for heating at up to 500 deg.C

Operating temp. range
Room temp. +10 deg.C to 500 deg.C
Temp. distribution accuracy
+/-5 deg.C (at 500 deg.C)
Internal capacity

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  • A fine oven with the highest heating temperature 500 deg.C.
  • Allows quick cooling in the unit with the exhaust damper.
  • Four-fold overheat preventive functions (automatic overheat prevention, heater room overheat prevention, overheat prevention in the bath, and temperature fuse) assure the optimal safety. The product also facilitates the self diagnostic function, the alarm history monitoring function, the key lock function and an over-current electric leakage breaker.
  • Abundant functions (external communication that supports RS485/FORWARD, external alarm, time-up, output on the logger) allow upgrading of the system according to the specific application.

Product code 211140
Model DH650
System Forced convection
Operating temp. range Room temp. +10 deg.C to 500 deg.C
Temp. adjustment accuracy +/-0.2 deg.C (at 360 deg.C)
Temp. distribution accuracy +/-3 deg.C (at 300 deg.C), +/-5 deg.C (at 500 deg.C)
Time to attain max. temp. 60 min.
Interior/external material Stainless steel plate 2t/electrogalvanized steel (epoxy/melamine coated)
Heater/heat insulator SUS pipe, glass wool, ceramic fiber
Heater capacity 7.8 kW
Fan Propeller fan
Fan motor Condenser motor 20W
Exhaust port I.D. 50 mm (with damper) One on the back rear
Heater control SSR control
Sensor K-thermocouple (both for temperature controller and overheat preventive unit)
Damper Manual convection and ventilation
Safety functions Self diagnostic function (temp. sensor error, heater disconnection, SSR short-circuit, automatic overheat prevention, and other functions of CR5) key lock, program lock, independent overheat protection within the bath, independent heater room overheat prevention, over-current electric leakage breaker, temp. fuse, alarm terminal
Other functions Standard functions: RS485 external communication (supports FORWARD),
external alarm, time-up, and output on the logger
Power supply (50/60Hz) Three phase: AC200V, 23A
Internal capacity 216 L
External dimensions*2 1,350 x 950 x 1,300 mm (W x D x H)
Internal dimensions 600 x 600 x 600 mm (W x D x H)
Equipment weight Approx. 250 kg
Shelves (included) Stainless steel wire x 3, shelf pegs x 6
Shelf loading Approx. 30 kg/each
Number of shelf steps/shelf pitch 9 steps/60mm

*1 Conditions: Temperature and humidity: 23 deg.C+/-5 deg.C, 65%RH+/-20% (no load)
*2 External dimensions do not include protrusions.

Control panel CR5
Major functions
Operation modes
1. Fixed operation
2. Fixed auto stop operation
3. Fixed quick auto stop operation
4. Fixed auto start operation
5. Program operation
6. Program auto start operation
Useful functions
Wind amount adjustment function (10 steps)
Automatic open/close damper function
Display switching during operation
Heater output operation amount display
Program name setting
Operation guide function, etc.

Temp. rise curve Construction diagram

Temp. decrease curve Shelf (stainless steel wire)

Dimensional drawing (mm)

Optional items
Description Model No. Product Code
RS485-232C conversion adaptor DH650  281126
Application software FORWARD DH650  281501
Wire shelf/shelf peg DH650 211064
Cable port of I.D. 25 mm DH650 281508
Cable port of I.D. 50 mm DH650 281509
RM hybrid recorder (6 Ch) DH650 281017
PHR video chart recorder (6 Ch) DH650 281019
T-thermocouple sensor for recorder 2m DH650 281554
T-thermocouple sensor for recorder 2m (with calibration certificate) DH650 281555
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