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Rapid Heated Pressing (VRHP) Furnace upto 1600ºC & 5T with Stainless Steel Vacuum Chamber - OTF-1700X-RHP4

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Item Number: OTF-1700X-RHP4
Transported by LTL Freight (Truck)

OTF-1700X-RHP4 is a Vacuum Rapid Heated Pressing Furnace (VRHP or RHP) designed for making dense pallets under vacuum or the protective gas environment. A 15 kW temperature controllable induction heater is integrated into the system, which provides sufficient power for rapidly heating the graphite pressing die up to 1700 ºC. The Induction coil is built inside of stainless steel vacuum chamber. An electric hydraulic press is inserted from the bottom of the chamber, providing up to 5 tons pressing force.

SPECIFICATIONS  ( We reserve the right to modify the specifications at any time before order confirmation

Max. Pressure

  • 5 metric tons (10 MPa on pressure gauge).

Hydraulic Electrical Presser

  • Piston diameter: 60 mm.
  • Vertical move distance: 35 mm.
  • Automatic pressure controller
  • Please click on the picture for details。

Induction Heater

  • Working voltage: 380 VAC, 50/60 Hz, three phase.
  • Working current: 40 A (with a 60 A breaker).
  • Maximum oscillating power: 30 kW.
  • Maximum input power: 15 kW.
  • Output frequency: 30 ~ 80 kHz.
  • Duty cycle: 80%.
  • Max. Working Temperature :  1600 ℃ max duration time: < 30 min.
  • Air cooling: fan.
  • Protection: water pressure monitoring, high-temperature protection, and overpower protection.

Temp. Controller 

  • Working voltage: 208 ~ 240 VAC, single phase.
  • Precision digital temperature controller with automatic PID tuning.
  • Temperature profile that contains maximum 30 programmable segments to control heating, dwelling, and cooling.
  • Overheating and pyrometer failure protection.
  • Temperature accuracy: ± 10 ºC. 
  • B-type thermocouple.
  • Continuous working temperature range: 1000 ~1700 ºC.
  • Experimental maximum heating rate in vacuum (only for 0.5" inner diameter graphite pressing die; without any thermal block): 
    • 4      ºC/s    ( 4 mins 50 seconds from room temperature to 1200 ºC)  
    • 2      ºC/s    ( 5min 40 seconds from 1200 to 1300 ºC)
    • 1.5   ºC/s    ( 6min 46 seconds from 1300 to 1400 ºC)
    • 1.2   ºC/s    ( 8mins 10 seconds from 1400 to 1500 ºC)
    • 1      ºC/s    ( 9mins 50 seconds from 1500 to 1600 ºC)
  • Experimental cooling rate in vacuum:
    • 3.5    ºC/s   (~ 2 mins 20 seconds from 1600 to 1200 ºC)
    • 1.1    ºC/s   (~ 8 mins 10 seconds from 1200 to 800 ºC)
    • 0.4    ºC/s   (21 mins 25 seconds from 800 to 500 ºC)
    • 0.16  ºC/s   (~ 37 mins 15 seconds from 500 to 350 ºC)
    • 0.06  ºC/s   (~ 104 mins 20 seconds from 350 to 150 ºC)
    Processing chamber
    Sealing Flange

  • Stainless steel vacuum sealed chamber: 260 × 230 × 320 mm (OD × ID × L). 
  • Flanges on both ends of the chamber. Flanges have a tunnel for cooling water.
  • Equipped with a KF-25D vacuum port, pressure gauge, 1/4" gas inlet port with stainless steel needle valve.
  • The upper flange can be lifted by raising the lead screw which provides the easy access to retrieve the graphite die.
  • Requires at least 55 liters per minute water flow. Please click on the picture below to order at an extra cost.
  • Vacuum level: up to 10-5 Torr by our molecular pumping station (EQ-PAC-LD turbo pumping system pump)  or 7.5 mTorr by a mechanical pump.   10-7 torr turbo pump system is available upon request
  • Vacuum pumped is not included.  Please click on the pictures below to view our vacuum pumps at extra cost.
    Digital Pressure Gauge
  • Maximum pressure display is upto 10 MPa.

    High-Temperature Graphite
    Pressing Die Set 

  • Two built-in graphite supporting rods.
  • One set of 0.5" (inner diameter) graphite die are included for immediate use.
  • Made of high purity graphite by HIP processing, Max. Pressure for the die is  50 MPa, and  Max. Load from the hydraulic press is dependent on die 's ID
    • 0.5"ID   Max.  0.5T
    • 1.0 ID:   Max.  3T
  • The graphite pressing die is fragile and consumable. Please click on the picture below to order extra sets. We also provide customized die sets upon customer request at extra cost.
  • Mica spacers are used to adjust the height of die sets and insulate heat. Please click on the picture below to order spares.
  • Note: The maximum pressure range of graphite dies will vary depending on the inner diameter of the die. For example, the graphite dies with an inner diameter of 0.5" can withstand 0.6 metric tons. For the graphite die with an inner diameter of 1" can withstand 3 metric tons.
  • 800 × 800 × 1300 mm (L × W × H).  

    Net Weight

  • 350 kg.

    Shipping Weight & Dimensions

  • Two Pallets
  • 935 lbs; 47" x 39" x 71"
  • 420 lbs, 48" x 40" x 54"

    Application Notes

  • Lifetime support.
  • One year limited standard warranty (extend the warranty to 5 years at extra cost).
  • Graphite rods are not covered by warranty.
  • CE certified.
  • NRTL certification (UL 1450) is available upon request at extra cost. Please contact our sales representatives for quote.

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1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.