• Vacuum Oil Quenching Furnace
  • Vacuum Oil Quenching Furnace
  • Vacuum Oil Quenching Furnace
Vacuum Oil Quenching Furnace
  • ST-YCL-334
  • 1320°C
  • 1300°C
  • 0–15°C/min
  • 100-500kg or custom made

This high-temperature vacuum oil-quenching furnace features a graphite heating chamber and graphite felt heat insulation screens. It operates at a maximum temperature of 1320°C and utilizes a highly automated, stable, and reliable electrical control system. The furnace is primarily used for the bright quenching and annealing of materials such as alloy steel, tool steel, die steel, high-speed steel

Product Description

This high-temperature vacuum oil-quenching furnace features a graphite heating chamber and graphite felt heat insulation screens. It operates at a maximum temperature of 1320°C and utilizes a highly automated, stable, and reliable electrical control system. The furnace is primarily used for the bright quenching and annealing of materials such as alloy steel, tool steel, die steel, high-speed steel, bearing steel, spring steel, and stainless steel, as well as for the vacuum sintering of ceramics and cemented carbides, and the vacuum brazing of metal materials.



Features of the High-Temperature Vacuum Oil-Quenching Furnace

1. Uses graphite tubes as heating elements, offering a long service life and easy maintenance, with a maximum operating temperature of 1300°C.

2. The composite gate valve provides excellent thermal and gas insulation.

3. Features a dual-chamber structure: the rear chamber serves as the heating chamber, while the front chamber acts as the cooling chamber, capable of both oil quenching and gas cooling. The upper section is the gas quenching chamber equipped with a gas cooling system; the lower section is the oil quenching chamber, equipped with a lifting mechanism, a loading/unloading mechanism, an oil agitation system, and an oil heating system.

4. Lifting mechanism: Driven by a three-speed gear motor located outside the furnace, it moves the lifting load trolley via a lead screw and nut assembly. The trolley operates at three speeds: slow speed for loading and unloading; and for oil quenching, it employs a slow start, rapid entry into the oil, and slow final positioning.

5. Oil agitation system: An agitator located beneath the load trolley is driven by a motor-reducer unit. Deflector plates promote efficient circulation of the vacuum quenching oil, thereby enhancing its cooling capacity. The agitator utilizes standard components, ensuring low noise and high efficiency.

6. The workpiece transfer mechanism operates smoothly, flexibly, safely, and reliably.

7. The gas cooling chamber lid utilizes an interlocking-tooth flange design to ensure a secure seal against both positive and negative pressures.



Technical Data

Max. Operating Temperature

1320°C

Continuous Working Temperature

1300°C

Temperature Controller

• Equipped with PLC or AI PID instrument for automatic temperature control. Bidirectional anti-parallel SCR voltage regulation realizes precise furnace temperature control with current limiting function, which avoids circuit tripping and burnout of electrical components caused by unstable power supply or sudden overcurrent. The SCR we adopt is the world-famous brand Semikron.

• Supports 51-segment programmable curves. The furnace can automatically heat up, hold temperature and cool down according to preset programs with one-key operation, unattended.

• Built-in auto-tuning function for temperature control parameters.

• Equipped with over-temperature alarm and thermocouple breakage alarm, it will cut off power supply automatically to provide reliable safety protection.

Temperature Control Accuracy

±1°C

Heating Rate

0–15°C/min

Thermocouple

Type S

Heating Element

High-purity graphite tube

Furnace Chamber Liner

High-purity graphite soft felt and hard felt

Ultimate Vacuum Degree

6×10³ Pa

Furnace Shell Structure

• Made of high-strength carbon steel. The shell undergoes pickling, phosphating and rust removal treatment, followed by electrostatic spraying for elegant appearance.

• Double-layer air-cooled furnace shell fitted with 2–4 built-in cooling fans to guarantee the surface temperature of furnace shell below 60°C.

Furnace Door

Side-opening design

Product Warranty

1. One-year free warranty for the complete high-temperature furnace starting from acceptance date. On-site maintenance is provided for equipment faults, plus lifetime technical support.

2. Spare parts are available at cost price after the warranty period expires.



Furnace Size

Model

Furnace Size(mm)

Max. Temperature
()

Furnace Loading Capacity
(kgs)

Temperature Uniformity ()

Power
(kW)

Ultimate Vacuum

ST-YCL-334

300*300*450

1320

100

±5

50

6×10^(-3)

ST-YCL-446

400*400*600

1320

200

±5

80

6×10^(-3)

ST-YCL-557

500*500*700

1320

300

±5

120

6×10^(-3)

ST-YCL-669

600*600*900

1320

500

±5

150

6×10^(-3)

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