Ceramic Calcining Rotary Tube Furnace PTR D100/440/12

PTR D100/440/12 is a ceramic oxides calcining rotary tube furnace, features single heating zones with length of 440mm, rotating speed 0-10rpm variable. 4 mixing blades build in the tube for material stirring during heating, Tmax 1200℃. It is mianly build for heat treatment of particulate materials continuous flowing at high temperatures.

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Product Overview

PTR D100/440/12 is a 1200°C Rotary tube furnace, particularly suitable for particulate materials heat treatment processes such as calcining in which continuously flowing at high temperatures under vacuum or atmosphere protection sintering, vacuum film coating, CVD experiments and physical components testing for rare earth preparation, electronic lighting, crystal annealing, biological ceramics, electronic ceramics, special alloy, magnetic material, precision casting and metal heat treatment.

Main Features
  • Tmax 1200°C
  • Single zone, Horizontal, Split, Rotary Tube Furnace in Laboratory
  • High purity fused quartz tube with four mixing blades built inside for material stirring
  • Motor drived tube rotating speed 1-5 RPM
  • Max vacuum level 10E-5 torr
  • Multiple gas inlets and outlets
  • All sides heating ensure uniform temperature
  • SS304 sealing flanges and gauge included
  • Dual flanges support provides better sealing and longer tube life
  • Split furnace chamber for fast cooling and easy tube access
  • Type N thermocouple
  • CE standard
    • Built-in ammeter and dual voltmeters for easy monitoring and troubleshooting.
    • Overheat protection shuts down the tube furnace if temperature is outside of acceptable range (refer to controller’s manual) or when the thermocouple is broken or malfunctions.
    • Power failure protection resumes furnace operation right after the point of failure when power is reestablished.
    • Microprocessor based self-tuning PID control provides optimum thermal process with minimal overshoot


Product illustration

rotary tube furnace

Rotary tube furnace for ceramic powder calcining

quartz tube structure

Quartz tube structure and dimension

rotary system

Calcining Rotary tube furnace rotating system


Temperature and Rotating Control Panel


Technical Specifications


Model No.PTR D100/440/12
Heating zoneSingle heating zones
Zone length: 440mm /17″
Uniform temp zone: 200mm/8″
Temperature uniformity +/- 5C
Power supply4KW
AC208-240V, 50/60Hz, 1 phase
Working temperatureTmax 1200°C (2192°F)
Continuously 1100°C (2012°F)
Temperature controllerShimaden PID controller
Auto-tune function
Programmable 32 segments
Temperature accuracy +/- 1°C
Heating rate≤20°C / min
ThermocoupleN type
Temp. Range: (0 to 1260) °C
Furnace tubeMaterial: Fused quartz
Size: Heating zone OD100mm, length1100mm
effective tumbling volume:0.9L
4 mixing blades inside
Rotating rate0-10 rpm variable
Vacuum flangesSS304 sealing flanges
Multiple gas inlets and outlets
Vacuum levelMax 10E-5 torr with molecular pump
Chamber liningMitsubishi Raw Material high alumina 1500# fiber board
Electronic componentsSchneider maker air switch, AC contactor, SSR Relay etc.
Heating elementHRE resistance coil wire
Shipping infoWeight: 130 kgs
ComplianceCE, ISO
WarrantyOne-year limited warranty with lifetime support
Application Notes
  • Don’t fill any explosive gasses such as Hydrogen or Methane into the Rotating furnace tube without necessary safety controls and supervision.
  • Rotary Tube furnace with quartz tubes are designed for use under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 MPa.
  • Small cracks may appear on the surface of the refractory ceramics over extended use. This is a normal occurrence and the cracks may be repaired with alumina coating
Size Comparison
Item namePTR D40/12PTR D80/12PTR D120/12
Heating length300mm300mm600mm
Tube sizeOD40xL1000mmOD80xL1000mmOD120xL1200mm
Power1.8 KW2.8 KW5.0 KW
Weight60 KGS75 KGS145 KGS

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